This is the new *CloudFormation Template Reference Guide*. Please update your bookmarks and links. For help getting started with CloudFormation, see the [AWS CloudFormation User Guide](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/Welcome.html).

# Application Auto Scaling
<a name="AWS_ApplicationAutoScaling"></a>

**Resource types**
+ [AWS::ApplicationAutoScaling::ScalableTarget](aws-resource-applicationautoscaling-scalabletarget.md)
+ [AWS::ApplicationAutoScaling::ScalingPolicy](aws-resource-applicationautoscaling-scalingpolicy.md)

# AWS::ApplicationAutoScaling::ScalableTarget
<a name="aws-resource-applicationautoscaling-scalabletarget"></a>

The `AWS::ApplicationAutoScaling::ScalableTarget` resource specifies a resource that Application Auto Scaling can scale, such as an AWS::DynamoDB::Table or AWS::ECS::Service resource.

For more information, see [Getting started](https://docs.aws.amazon.com/autoscaling/application/userguide/getting-started.html) in the *Application Auto Scaling User Guide*.

**Note**  
If the resource that you want Application Auto Scaling to scale is not yet created in your account, add a dependency on the resource when registering it as a scalable target using the [DependsOn](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-attribute-dependson.html) attribute. 

## Syntax
<a name="aws-resource-applicationautoscaling-scalabletarget-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-resource-applicationautoscaling-scalabletarget-syntax.json"></a>

```
{
  "Type" : "AWS::ApplicationAutoScaling::ScalableTarget",
  "Properties" : {
      "[MaxCapacity](#cfn-applicationautoscaling-scalabletarget-maxcapacity)" : Integer,
      "[MinCapacity](#cfn-applicationautoscaling-scalabletarget-mincapacity)" : Integer,
      "[ResourceId](#cfn-applicationautoscaling-scalabletarget-resourceid)" : String,
      "[RoleARN](#cfn-applicationautoscaling-scalabletarget-rolearn)" : String,
      "[ScalableDimension](#cfn-applicationautoscaling-scalabletarget-scalabledimension)" : String,
      "[ScheduledActions](#cfn-applicationautoscaling-scalabletarget-scheduledactions)" : [ ScheduledAction, ... ],
      "[ServiceNamespace](#cfn-applicationautoscaling-scalabletarget-servicenamespace)" : String,
      "[SuspendedState](#cfn-applicationautoscaling-scalabletarget-suspendedstate)" : SuspendedState
    }
}
```

### YAML
<a name="aws-resource-applicationautoscaling-scalabletarget-syntax.yaml"></a>

```
Type: AWS::ApplicationAutoScaling::ScalableTarget
Properties:
  [MaxCapacity](#cfn-applicationautoscaling-scalabletarget-maxcapacity): Integer
  [MinCapacity](#cfn-applicationautoscaling-scalabletarget-mincapacity): Integer
  [ResourceId](#cfn-applicationautoscaling-scalabletarget-resourceid): String
  [RoleARN](#cfn-applicationautoscaling-scalabletarget-rolearn): String
  [ScalableDimension](#cfn-applicationautoscaling-scalabletarget-scalabledimension): String
  [ScheduledActions](#cfn-applicationautoscaling-scalabletarget-scheduledactions): 
    - ScheduledAction
  [ServiceNamespace](#cfn-applicationautoscaling-scalabletarget-servicenamespace): String
  [SuspendedState](#cfn-applicationautoscaling-scalabletarget-suspendedstate): 
    SuspendedState
```

## Properties
<a name="aws-resource-applicationautoscaling-scalabletarget-properties"></a>

`MaxCapacity`  <a name="cfn-applicationautoscaling-scalabletarget-maxcapacity"></a>
The maximum value that you plan to scale out to. When a scaling policy is in effect, Application Auto Scaling can scale out (expand) as needed to the maximum capacity limit in response to changing demand.  
*Required*: Yes  
*Type*: Integer  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`MinCapacity`  <a name="cfn-applicationautoscaling-scalabletarget-mincapacity"></a>
The minimum value that you plan to scale in to. When a scaling policy is in effect, Application Auto Scaling can scale in (contract) as needed to the minimum capacity limit in response to changing demand.   
*Required*: Yes  
*Type*: Integer  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`ResourceId`  <a name="cfn-applicationautoscaling-scalabletarget-resourceid"></a>
The identifier of the resource associated with the scalable target. This string consists of the resource type and unique identifier.  
+ ECS service - The resource type is `service` and the unique identifier is the cluster name and service name. Example: `service/my-cluster/my-service`.
+ Spot Fleet - The resource type is `spot-fleet-request` and the unique identifier is the Spot Fleet request ID. Example: `spot-fleet-request/sfr-73fbd2ce-aa30-494c-8788-1cee4EXAMPLE`.
+ EMR cluster - The resource type is `instancegroup` and the unique identifier is the cluster ID and instance group ID. Example: `instancegroup/j-2EEZNYKUA1NTV/ig-1791Y4E1L8YI0`.
+ AppStream 2.0 fleet - The resource type is `fleet` and the unique identifier is the fleet name. Example: `fleet/sample-fleet`.
+ DynamoDB table - The resource type is `table` and the unique identifier is the table name. Example: `table/my-table`.
+ DynamoDB global secondary index - The resource type is `index` and the unique identifier is the index name. Example: `table/my-table/index/my-table-index`.
+ Aurora DB cluster - The resource type is `cluster` and the unique identifier is the cluster name. Example: `cluster:my-db-cluster`.
+ SageMaker endpoint variant - The resource type is `variant` and the unique identifier is the resource ID. Example: `endpoint/my-end-point/variant/KMeansClustering`.
+ Custom resources are not supported with a resource type. This parameter must specify the `OutputValue` from the CloudFormation template stack used to access the resources. The unique identifier is defined by the service provider. More information is available in our [GitHub repository](https://github.com/aws/aws-auto-scaling-custom-resource).
+ Amazon Comprehend document classification endpoint - The resource type and unique identifier are specified using the endpoint ARN. Example: `arn:aws:comprehend:us-west-2:123456789012:document-classifier-endpoint/EXAMPLE`.
+ Amazon Comprehend entity recognizer endpoint - The resource type and unique identifier are specified using the endpoint ARN. Example: `arn:aws:comprehend:us-west-2:123456789012:entity-recognizer-endpoint/EXAMPLE`.
+ Lambda provisioned concurrency - The resource type is `function` and the unique identifier is the function name with a function version or alias name suffix that is not `$LATEST`. Example: `function:my-function:prod` or `function:my-function:1`.
+ Amazon Keyspaces table - The resource type is `table` and the unique identifier is the table name. Example: `keyspace/mykeyspace/table/mytable`.
+ Amazon MSK cluster - The resource type and unique identifier are specified using the cluster ARN. Example: `arn:aws:kafka:us-east-1:123456789012:cluster/demo-cluster-1/6357e0b2-0e6a-4b86-a0b4-70df934c2e31-5`.
+ Amazon ElastiCache replication group - The resource type is `replication-group` and the unique identifier is the replication group name. Example: `replication-group/mycluster`.
+ Amazon ElastiCache cache cluster - The resource type is `cache-cluster` and the unique identifier is the cache cluster name. Example: `cache-cluster/mycluster`.
+ Neptune cluster - The resource type is `cluster` and the unique identifier is the cluster name. Example: `cluster:mycluster`.
+ SageMaker serverless endpoint - The resource type is `variant` and the unique identifier is the resource ID. Example: `endpoint/my-end-point/variant/KMeansClustering`.
+ SageMaker inference component - The resource type is `inference-component` and the unique identifier is the resource ID. Example: `inference-component/my-inference-component`.
+ Pool of WorkSpaces - The resource type is `workspacespool` and the unique identifier is the pool ID. Example: `workspacespool/wspool-123456`.
*Required*: Yes  
*Type*: String  
*Pattern*: `[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*`  
*Minimum*: `1`  
*Maximum*: `1600`  
*Update requires*: [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)

`RoleARN`  <a name="cfn-applicationautoscaling-scalabletarget-rolearn"></a>
Specify the Amazon Resource Name (ARN) of an Identity and Access Management (IAM) role that allows Application Auto Scaling to modify the scalable target on your behalf. This can be either an IAM service role that Application Auto Scaling can assume to make calls to other AWS resources on your behalf, or a service-linked role for the specified service. For more information, see [How Application Auto Scaling works with IAM](https://docs.aws.amazon.com/autoscaling/application/userguide/security_iam_service-with-iam.html) in the *Application Auto Scaling User Guide*.  
To automatically create a service-linked role (recommended), specify the full ARN of the service-linked role in your stack template. To find the exact ARN of the service-linked role for your AWS or custom resource, see the [Service-linked roles](https://docs.aws.amazon.com/autoscaling/application/userguide/application-auto-scaling-service-linked-roles.html) topic in the *Application Auto Scaling User Guide*. Look for the ARN in the table at the bottom of the page.  
*Required*: No  
*Type*: String  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`ScalableDimension`  <a name="cfn-applicationautoscaling-scalabletarget-scalabledimension"></a>
The scalable dimension associated with the scalable target. This string consists of the service namespace, resource type, and scaling property.  
+ `ecs:service:DesiredCount` - The task count of an ECS service.
+ `elasticmapreduce:instancegroup:InstanceCount` - The instance count of an EMR Instance Group.
+ `ec2:spot-fleet-request:TargetCapacity` - The target capacity of a Spot Fleet.
+ `appstream:fleet:DesiredCapacity` - The capacity of an AppStream 2.0 fleet.
+ `dynamodb:table:ReadCapacityUnits` - The provisioned read capacity for a DynamoDB table.
+ `dynamodb:table:WriteCapacityUnits` - The provisioned write capacity for a DynamoDB table.
+ `dynamodb:index:ReadCapacityUnits` - The provisioned read capacity for a DynamoDB global secondary index.
+ `dynamodb:index:WriteCapacityUnits` - The provisioned write capacity for a DynamoDB global secondary index.
+ `rds:cluster:ReadReplicaCount` - The count of Aurora Replicas in an Aurora DB cluster. Available for Aurora MySQL-compatible edition and Aurora PostgreSQL-compatible edition.
+ `sagemaker:variant:DesiredInstanceCount` - The number of EC2 instances for a SageMaker model endpoint variant.
+ `custom-resource:ResourceType:Property` - The scalable dimension for a custom resource provided by your own application or service.
+ `comprehend:document-classifier-endpoint:DesiredInferenceUnits` - The number of inference units for an Amazon Comprehend document classification endpoint.
+ `comprehend:entity-recognizer-endpoint:DesiredInferenceUnits` - The number of inference units for an Amazon Comprehend entity recognizer endpoint.
+ `lambda:function:ProvisionedConcurrency` - The provisioned concurrency for a Lambda function.
+ `cassandra:table:ReadCapacityUnits` - The provisioned read capacity for an Amazon Keyspaces table.
+ `cassandra:table:WriteCapacityUnits` - The provisioned write capacity for an Amazon Keyspaces table.
+ `kafka:broker-storage:VolumeSize` - The provisioned volume size (in GiB) for brokers in an Amazon MSK cluster.
+ `elasticache:cache-cluster:Nodes` - The number of nodes for an Amazon ElastiCache cache cluster.
+ `elasticache:replication-group:NodeGroups` - The number of node groups for an Amazon ElastiCache replication group.
+ `elasticache:replication-group:Replicas` - The number of replicas per node group for an Amazon ElastiCache replication group.
+ `neptune:cluster:ReadReplicaCount` - The count of read replicas in an Amazon Neptune DB cluster.
+ `sagemaker:variant:DesiredProvisionedConcurrency` - The provisioned concurrency for a SageMaker serverless endpoint.
+ `sagemaker:inference-component:DesiredCopyCount` - The number of copies across an endpoint for a SageMaker inference component.
+ `workspaces:workspacespool:DesiredUserSessions` - The number of user sessions for the WorkSpaces in the pool.
*Required*: Yes  
*Type*: String  
*Allowed values*: `ecs:service:DesiredCount | ec2:spot-fleet-request:TargetCapacity | elasticmapreduce:instancegroup:InstanceCount | appstream:fleet:DesiredCapacity | dynamodb:table:ReadCapacityUnits | dynamodb:table:WriteCapacityUnits | dynamodb:index:ReadCapacityUnits | dynamodb:index:WriteCapacityUnits | rds:cluster:ReadReplicaCount | sagemaker:variant:DesiredInstanceCount | custom-resource:ResourceType:Property | comprehend:document-classifier-endpoint:DesiredInferenceUnits | comprehend:entity-recognizer-endpoint:DesiredInferenceUnits | lambda:function:ProvisionedConcurrency | cassandra:table:ReadCapacityUnits | cassandra:table:WriteCapacityUnits | kafka:broker-storage:VolumeSize | elasticache:cache-cluster:Nodes | elasticache:replication-group:NodeGroups | elasticache:replication-group:Replicas | neptune:cluster:ReadReplicaCount | sagemaker:variant:DesiredProvisionedConcurrency | sagemaker:inference-component:DesiredCopyCount | workspaces:workspacespool:DesiredUserSessions`  
*Update requires*: [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)

`ScheduledActions`  <a name="cfn-applicationautoscaling-scalabletarget-scheduledactions"></a>
The scheduled actions for the scalable target. Duplicates aren't allowed.  
*Required*: No  
*Type*: Array of [ScheduledAction](aws-properties-applicationautoscaling-scalabletarget-scheduledaction.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`ServiceNamespace`  <a name="cfn-applicationautoscaling-scalabletarget-servicenamespace"></a>
The namespace of the AWS service that provides the resource, or a `custom-resource`.  
*Required*: Yes  
*Type*: String  
*Allowed values*: `ecs | elasticmapreduce | ec2 | appstream | dynamodb | rds | sagemaker | custom-resource | comprehend | lambda | cassandra | kafka | elasticache | neptune | workspaces`  
*Update requires*: [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)

`SuspendedState`  <a name="cfn-applicationautoscaling-scalabletarget-suspendedstate"></a>
An embedded object that contains attributes and attribute values that are used to suspend and resume automatic scaling. Setting the value of an attribute to `true` suspends the specified scaling activities. Setting it to `false` (default) resumes the specified scaling activities.   
 **Suspension Outcomes**   
+ For `DynamicScalingInSuspended`, while a suspension is in effect, all scale-in activities that are triggered by a scaling policy are suspended.
+ For `DynamicScalingOutSuspended`, while a suspension is in effect, all scale-out activities that are triggered by a scaling policy are suspended.
+ For `ScheduledScalingSuspended`, while a suspension is in effect, all scaling activities that involve scheduled actions are suspended. 
*Required*: No  
*Type*: [SuspendedState](aws-properties-applicationautoscaling-scalabletarget-suspendedstate.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

## Return values
<a name="aws-resource-applicationautoscaling-scalabletarget-return-values"></a>

### Ref
<a name="aws-resource-applicationautoscaling-scalabletarget-return-values-ref"></a>

When the logical ID of this resource is provided to the `Ref` intrinsic function, `Ref` returns the CloudFormation-generated ID of the resource. For example: `service/ecsStack-MyECSCluster-AB12CDE3F4GH/ecsStack-MyECSService-AB12CDE3F4GH|ecs:service:DesiredCount|ecs`. 

CloudFormation uses the following format to generate the ID: `service/resource_ID|scalable_dimension|service_namespace`.

For more information about using the `Ref` function, see [Ref](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/intrinsic-function-reference-ref.html). 

### Fn::GetAtt
<a name="aws-resource-applicationautoscaling-scalabletarget-return-values-fn--getatt"></a>

The `Fn::GetAtt` intrinsic function returns a value for a specified attribute of this type. The following are the available attributes and sample return values.

For more information about using the `Fn::GetAtt` intrinsic function, see [https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/intrinsic-function-reference-getatt.html](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/intrinsic-function-reference-getatt.html).

## Examples
<a name="aws-resource-applicationautoscaling-scalabletarget--examples"></a>

Each scalable target has a service namespace, scalable dimension, and resource ID, as well as values for minimum and maximum capacity.

For more sample template snippets, see [Configure Application Auto Scaling resources](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/quickref-application-auto-scaling.html). This section also provides examples of scheduled actions.

### Register a scalable target
<a name="aws-resource-applicationautoscaling-scalabletarget--examples--Register_a_scalable_target"></a>

The following example creates a scalable target for an [AWS::Cassandra::Table](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-cassandra-table.html) resource. Application Auto Scaling can scale the write capacity throughput at a minimum of 1 capacity unit and a maximum of 20. To register a different resource supported by Application Auto Scaling, specify its namespace in `ServiceNamespace`, its scalable dimension in `ScalableDimension`, its resource ID in `ResourceId`, and its service-linked role in `RoleARN`.

**Note**  
The `RoleArn` property references a service-linked role that is created for you after you use Application Auto Scaling with the specified resource for the first time.

#### JSON
<a name="aws-resource-applicationautoscaling-scalabletarget--examples--Register_a_scalable_target--json"></a>

```
{
  "ScalableTarget":{
    "Type":"AWS::ApplicationAutoScaling::ScalableTarget",
    "Properties":{
      "MaxCapacity":20,
      "MinCapacity":1,
      "RoleARN":{
        "Fn::Sub":"arn:aws:iam::${AWS::AccountId}:role/aws-service-role/cassandra.application-autoscaling.amazonaws.com/AWSServiceRoleForApplicationAutoScaling_CassandraTable"
      },
      "ServiceNamespace":"cassandra",
      "ScalableDimension":"cassandra:table:WriteCapacityUnits",
      "ResourceId":"keyspace/mykeyspace/table/mytable"
    }
  }
}
```

#### YAML
<a name="aws-resource-applicationautoscaling-scalabletarget--examples--Register_a_scalable_target--yaml"></a>

```
ScalableTarget:
  Type: AWS::ApplicationAutoScaling::ScalableTarget
  Properties:
    MaxCapacity: 20
    MinCapacity: 1
    RoleARN: 
      Fn::Sub: 'arn:aws:iam::${AWS::AccountId}:role/aws-service-role/cassandra.application-autoscaling.amazonaws.com/AWSServiceRoleForApplicationAutoScaling_CassandraTable'
    ServiceNamespace: cassandra
    ScalableDimension: cassandra:table:WriteCapacityUnits
    ResourceId: keyspace/mykeyspace/table/mytable
```

## See also
<a name="aws-resource-applicationautoscaling-scalabletarget--seealso"></a>
+ You can find additional useful snippets in the following section of the *AWS CloudFormation User Guide*: [Configure Application Auto Scaling resources](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/quickref-application-auto-scaling.html)
+ For example implementations, see the following articles on the AWS Blog:
  +  [How to use AWS CloudFormation to configure auto scaling for Amazon DynamoDB tables and indexes](https://aws.amazon.com/blogs/database/how-to-use-aws-cloudformation-to-configure-auto-scaling-for-amazon-dynamodb-tables-and-indexes/) 
  +  [Scheduling AWS Lambda Provisioned Concurrency for recurring peak usage](https://aws.amazon.com/blogs/compute/scheduling-aws-lambda-provisioned-concurrency-for-recurring-peak-usage/) 

# AWS::ApplicationAutoScaling::ScalableTarget ScalableTargetAction
<a name="aws-properties-applicationautoscaling-scalabletarget-scalabletargetaction"></a>

`ScalableTargetAction` specifies the minimum and maximum capacity for the `ScalableTargetAction` property of the [AWS::ApplicationAutoScaling::ScalableTarget ScheduledAction](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-applicationautoscaling-scalabletarget-scheduledaction.html) property type.

## Syntax
<a name="aws-properties-applicationautoscaling-scalabletarget-scalabletargetaction-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-applicationautoscaling-scalabletarget-scalabletargetaction-syntax.json"></a>

```
{
  "[MaxCapacity](#cfn-applicationautoscaling-scalabletarget-scalabletargetaction-maxcapacity)" : Integer,
  "[MinCapacity](#cfn-applicationautoscaling-scalabletarget-scalabletargetaction-mincapacity)" : Integer
}
```

### YAML
<a name="aws-properties-applicationautoscaling-scalabletarget-scalabletargetaction-syntax.yaml"></a>

```
  [MaxCapacity](#cfn-applicationautoscaling-scalabletarget-scalabletargetaction-maxcapacity): Integer
  [MinCapacity](#cfn-applicationautoscaling-scalabletarget-scalabletargetaction-mincapacity): Integer
```

## Properties
<a name="aws-properties-applicationautoscaling-scalabletarget-scalabletargetaction-properties"></a>

`MaxCapacity`  <a name="cfn-applicationautoscaling-scalabletarget-scalabletargetaction-maxcapacity"></a>
The maximum capacity.  
*Required*: No  
*Type*: Integer  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`MinCapacity`  <a name="cfn-applicationautoscaling-scalabletarget-scalabletargetaction-mincapacity"></a>
The minimum capacity.  
*Required*: No  
*Type*: Integer  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

## See also
<a name="aws-properties-applicationautoscaling-scalabletarget-scalabletargetaction--seealso"></a>
+  [Configure Application Auto Scaling resources](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/quickref-application-auto-scaling.html) 
+ [Getting started](https://docs.aws.amazon.com/autoscaling/application/userguide/getting-started.html) in the *Application Auto Scaling User Guide*



# AWS::ApplicationAutoScaling::ScalableTarget ScheduledAction
<a name="aws-properties-applicationautoscaling-scalabletarget-scheduledaction"></a>

`ScheduledAction` is a property of the [AWS::ApplicationAutoScaling::ScalableTarget](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-applicationautoscaling-scalabletarget.html) resource that specifies a scheduled action for a scalable target. 

For more information, see [Scheduled scaling](https://docs.aws.amazon.com/autoscaling/application/userguide/application-auto-scaling-scheduled-scaling.html) in the *Application Auto Scaling User Guide*.

## Syntax
<a name="aws-properties-applicationautoscaling-scalabletarget-scheduledaction-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-applicationautoscaling-scalabletarget-scheduledaction-syntax.json"></a>

```
{
  "[EndTime](#cfn-applicationautoscaling-scalabletarget-scheduledaction-endtime)" : String,
  "[ScalableTargetAction](#cfn-applicationautoscaling-scalabletarget-scheduledaction-scalabletargetaction)" : ScalableTargetAction,
  "[Schedule](#cfn-applicationautoscaling-scalabletarget-scheduledaction-schedule)" : String,
  "[ScheduledActionName](#cfn-applicationautoscaling-scalabletarget-scheduledaction-scheduledactionname)" : String,
  "[StartTime](#cfn-applicationautoscaling-scalabletarget-scheduledaction-starttime)" : String,
  "[Timezone](#cfn-applicationautoscaling-scalabletarget-scheduledaction-timezone)" : String
}
```

### YAML
<a name="aws-properties-applicationautoscaling-scalabletarget-scheduledaction-syntax.yaml"></a>

```
  [EndTime](#cfn-applicationautoscaling-scalabletarget-scheduledaction-endtime): String
  [ScalableTargetAction](#cfn-applicationautoscaling-scalabletarget-scheduledaction-scalabletargetaction): 
    ScalableTargetAction
  [Schedule](#cfn-applicationautoscaling-scalabletarget-scheduledaction-schedule): String
  [ScheduledActionName](#cfn-applicationautoscaling-scalabletarget-scheduledaction-scheduledactionname): String
  [StartTime](#cfn-applicationautoscaling-scalabletarget-scheduledaction-starttime): String
  [Timezone](#cfn-applicationautoscaling-scalabletarget-scheduledaction-timezone): String
```

## Properties
<a name="aws-properties-applicationautoscaling-scalabletarget-scheduledaction-properties"></a>

`EndTime`  <a name="cfn-applicationautoscaling-scalabletarget-scheduledaction-endtime"></a>
The date and time that the action is scheduled to end, in UTC.  
*Required*: No  
*Type*: String  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`ScalableTargetAction`  <a name="cfn-applicationautoscaling-scalabletarget-scheduledaction-scalabletargetaction"></a>
The new minimum and maximum capacity. You can set both values or just one. At the scheduled time, if the current capacity is below the minimum capacity, Application Auto Scaling scales out to the minimum capacity. If the current capacity is above the maximum capacity, Application Auto Scaling scales in to the maximum capacity.  
*Required*: No  
*Type*: [ScalableTargetAction](aws-properties-applicationautoscaling-scalabletarget-scalabletargetaction.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Schedule`  <a name="cfn-applicationautoscaling-scalabletarget-scheduledaction-schedule"></a>
The schedule for this action. The following formats are supported:  
+ At expressions - "`at(yyyy-mm-ddThh:mm:ss)`"
+ Rate expressions - "`rate(valueunit)`"
+ Cron expressions - "`cron(fields)`"
At expressions are useful for one-time schedules. Cron expressions are useful for scheduled actions that run periodically at a specified date and time, and rate expressions are useful for scheduled actions that run at a regular interval.  
At and cron expressions use Universal Coordinated Time (UTC) by default.  
The cron format consists of six fields separated by white spaces: [Minutes] [Hours] [Day\$1of\$1Month] [Month] [Day\$1of\$1Week] [Year].  
For rate expressions, *value* is a positive integer and *unit* is `minute` \$1 `minutes` \$1 `hour` \$1 `hours` \$1 `day` \$1 `days`.  
*Required*: Yes  
*Type*: String  
*Pattern*: `[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*`  
*Minimum*: `1`  
*Maximum*: `1600`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`ScheduledActionName`  <a name="cfn-applicationautoscaling-scalabletarget-scheduledaction-scheduledactionname"></a>
The name of the scheduled action. This name must be unique among all other scheduled actions on the specified scalable target.  
*Required*: Yes  
*Type*: String  
*Pattern*: `(?!((^[ ]+.*)|(.*([\u0000-\u001f]|[\u007f-\u009f]|[:/|])+.*)|(.*[ ]+$))).+`  
*Minimum*: `1`  
*Maximum*: `256`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`StartTime`  <a name="cfn-applicationautoscaling-scalabletarget-scheduledaction-starttime"></a>
The date and time that the action is scheduled to begin, in UTC.  
*Required*: No  
*Type*: String  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Timezone`  <a name="cfn-applicationautoscaling-scalabletarget-scheduledaction-timezone"></a>
The time zone used when referring to the date and time of a scheduled action, when the scheduled action uses an at or cron expression.  
*Required*: No  
*Type*: String  
*Pattern*: `[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*`  
*Minimum*: `1`  
*Maximum*: `1600`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

## See also
<a name="aws-properties-applicationautoscaling-scalabletarget-scheduledaction--seealso"></a>
+ [Configure Application Auto Scaling resources](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/quickref-application-auto-scaling.html).
+ [Getting started](https://docs.aws.amazon.com/autoscaling/application/userguide/getting-started.html) in the *Application Auto Scaling User Guide*
+ [Schedule recurring scaling actions using cron expressions](https://docs.aws.amazon.com/autoscaling/application/userguide/scheduled-scaling-using-cron-expressions.html) in the *Application Auto Scaling User Guide*



# AWS::ApplicationAutoScaling::ScalableTarget SuspendedState
<a name="aws-properties-applicationautoscaling-scalabletarget-suspendedstate"></a>

`SuspendedState` is a property of the [AWS::ApplicationAutoScaling::ScalableTarget](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-applicationautoscaling-scalabletarget.html) resource that specifies whether the scaling activities for a scalable target are in a suspended state.

For more information, see [Suspending and resuming scaling](https://docs.aws.amazon.com/autoscaling/application/userguide/application-auto-scaling-suspend-resume-scaling.html) in the *Application Auto Scaling User Guide*.

## Syntax
<a name="aws-properties-applicationautoscaling-scalabletarget-suspendedstate-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-applicationautoscaling-scalabletarget-suspendedstate-syntax.json"></a>

```
{
  "[DynamicScalingInSuspended](#cfn-applicationautoscaling-scalabletarget-suspendedstate-dynamicscalinginsuspended)" : Boolean,
  "[DynamicScalingOutSuspended](#cfn-applicationautoscaling-scalabletarget-suspendedstate-dynamicscalingoutsuspended)" : Boolean,
  "[ScheduledScalingSuspended](#cfn-applicationautoscaling-scalabletarget-suspendedstate-scheduledscalingsuspended)" : Boolean
}
```

### YAML
<a name="aws-properties-applicationautoscaling-scalabletarget-suspendedstate-syntax.yaml"></a>

```
  [DynamicScalingInSuspended](#cfn-applicationautoscaling-scalabletarget-suspendedstate-dynamicscalinginsuspended): Boolean
  [DynamicScalingOutSuspended](#cfn-applicationautoscaling-scalabletarget-suspendedstate-dynamicscalingoutsuspended): Boolean
  [ScheduledScalingSuspended](#cfn-applicationautoscaling-scalabletarget-suspendedstate-scheduledscalingsuspended): Boolean
```

## Properties
<a name="aws-properties-applicationautoscaling-scalabletarget-suspendedstate-properties"></a>

`DynamicScalingInSuspended`  <a name="cfn-applicationautoscaling-scalabletarget-suspendedstate-dynamicscalinginsuspended"></a>
Whether scale in by a target tracking scaling policy or a step scaling policy is suspended. Set the value to `true` if you don't want Application Auto Scaling to remove capacity when a scaling policy is triggered. The default is `false`.   
*Required*: No  
*Type*: Boolean  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`DynamicScalingOutSuspended`  <a name="cfn-applicationautoscaling-scalabletarget-suspendedstate-dynamicscalingoutsuspended"></a>
Whether scale out by a target tracking scaling policy or a step scaling policy is suspended. Set the value to `true` if you don't want Application Auto Scaling to add capacity when a scaling policy is triggered. The default is `false`.   
*Required*: No  
*Type*: Boolean  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`ScheduledScalingSuspended`  <a name="cfn-applicationautoscaling-scalabletarget-suspendedstate-scheduledscalingsuspended"></a>
Whether scheduled scaling is suspended. Set the value to `true` if you don't want Application Auto Scaling to add or remove capacity by initiating scheduled actions. The default is `false`.   
*Required*: No  
*Type*: Boolean  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

# AWS::ApplicationAutoScaling::ScalingPolicy
<a name="aws-resource-applicationautoscaling-scalingpolicy"></a>

The `AWS::ApplicationAutoScaling::ScalingPolicy` resource defines a scaling policy that Application Auto Scaling uses to adjust the capacity of a scalable target. 

For more information, see [Target tracking scaling policies](https://docs.aws.amazon.com/autoscaling/application/userguide/application-auto-scaling-target-tracking.html) and [Step scaling policies](https://docs.aws.amazon.com/autoscaling/application/userguide/application-auto-scaling-step-scaling-policies.html) in the *Application Auto Scaling User Guide*.

## Syntax
<a name="aws-resource-applicationautoscaling-scalingpolicy-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-resource-applicationautoscaling-scalingpolicy-syntax.json"></a>

```
{
  "Type" : "AWS::ApplicationAutoScaling::ScalingPolicy",
  "Properties" : {
      "[PolicyName](#cfn-applicationautoscaling-scalingpolicy-policyname)" : String,
      "[PolicyType](#cfn-applicationautoscaling-scalingpolicy-policytype)" : String,
      "[PredictiveScalingPolicyConfiguration](#cfn-applicationautoscaling-scalingpolicy-predictivescalingpolicyconfiguration)" : PredictiveScalingPolicyConfiguration,
      "[ResourceId](#cfn-applicationautoscaling-scalingpolicy-resourceid)" : String,
      "[ScalableDimension](#cfn-applicationautoscaling-scalingpolicy-scalabledimension)" : String,
      "[ScalingTargetId](#cfn-applicationautoscaling-scalingpolicy-scalingtargetid)" : String,
      "[ServiceNamespace](#cfn-applicationautoscaling-scalingpolicy-servicenamespace)" : String,
      "[StepScalingPolicyConfiguration](#cfn-applicationautoscaling-scalingpolicy-stepscalingpolicyconfiguration)" : StepScalingPolicyConfiguration,
      "[TargetTrackingScalingPolicyConfiguration](#cfn-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration)" : TargetTrackingScalingPolicyConfiguration
    }
}
```

### YAML
<a name="aws-resource-applicationautoscaling-scalingpolicy-syntax.yaml"></a>

```
Type: AWS::ApplicationAutoScaling::ScalingPolicy
Properties:
  [PolicyName](#cfn-applicationautoscaling-scalingpolicy-policyname): String
  [PolicyType](#cfn-applicationautoscaling-scalingpolicy-policytype): String
  [PredictiveScalingPolicyConfiguration](#cfn-applicationautoscaling-scalingpolicy-predictivescalingpolicyconfiguration): 
    PredictiveScalingPolicyConfiguration
  [ResourceId](#cfn-applicationautoscaling-scalingpolicy-resourceid): String
  [ScalableDimension](#cfn-applicationautoscaling-scalingpolicy-scalabledimension): String
  [ScalingTargetId](#cfn-applicationautoscaling-scalingpolicy-scalingtargetid): String
  [ServiceNamespace](#cfn-applicationautoscaling-scalingpolicy-servicenamespace): String
  [StepScalingPolicyConfiguration](#cfn-applicationautoscaling-scalingpolicy-stepscalingpolicyconfiguration): 
    StepScalingPolicyConfiguration
  [TargetTrackingScalingPolicyConfiguration](#cfn-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration): 
    TargetTrackingScalingPolicyConfiguration
```

## Properties
<a name="aws-resource-applicationautoscaling-scalingpolicy-properties"></a>

`PolicyName`  <a name="cfn-applicationautoscaling-scalingpolicy-policyname"></a>
The name of the scaling policy.  
Updates to the name of a target tracking scaling policy are not supported, unless you also update the metric used for scaling. To change only a target tracking scaling policy's name, first delete the policy by removing the existing `AWS::ApplicationAutoScaling::ScalingPolicy` resource from the template and updating the stack. Then, recreate the resource with the same settings and a different name.  
*Required*: Yes  
*Type*: String  
*Pattern*: `\p{Print}+`  
*Minimum*: `1`  
*Maximum*: `256`  
*Update requires*: [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)

`PolicyType`  <a name="cfn-applicationautoscaling-scalingpolicy-policytype"></a>
The scaling policy type.  
The following policy types are supported:   
`TargetTrackingScaling`—Not supported for Amazon EMR  
`StepScaling`—Not supported for DynamoDB, Amazon Comprehend, Lambda, Amazon Keyspaces, Amazon MSK, Amazon ElastiCache, or Neptune.  
`PredictiveScaling`—Only supported for Amazon ECS  
*Required*: Yes  
*Type*: String  
*Allowed values*: `StepScaling | TargetTrackingScaling | PredictiveScaling`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`PredictiveScalingPolicyConfiguration`  <a name="cfn-applicationautoscaling-scalingpolicy-predictivescalingpolicyconfiguration"></a>
 The predictive scaling policy configuration.   
*Required*: No  
*Type*: [PredictiveScalingPolicyConfiguration](aws-properties-applicationautoscaling-scalingpolicy-predictivescalingpolicyconfiguration.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`ResourceId`  <a name="cfn-applicationautoscaling-scalingpolicy-resourceid"></a>
The identifier of the resource associated with the scaling policy. This string consists of the resource type and unique identifier.  
+ ECS service - The resource type is `service` and the unique identifier is the cluster name and service name. Example: `service/my-cluster/my-service`.
+ Spot Fleet - The resource type is `spot-fleet-request` and the unique identifier is the Spot Fleet request ID. Example: `spot-fleet-request/sfr-73fbd2ce-aa30-494c-8788-1cee4EXAMPLE`.
+ EMR cluster - The resource type is `instancegroup` and the unique identifier is the cluster ID and instance group ID. Example: `instancegroup/j-2EEZNYKUA1NTV/ig-1791Y4E1L8YI0`.
+ AppStream 2.0 fleet - The resource type is `fleet` and the unique identifier is the fleet name. Example: `fleet/sample-fleet`.
+ DynamoDB table - The resource type is `table` and the unique identifier is the table name. Example: `table/my-table`.
+ DynamoDB global secondary index - The resource type is `index` and the unique identifier is the index name. Example: `table/my-table/index/my-table-index`.
+ Aurora DB cluster - The resource type is `cluster` and the unique identifier is the cluster name. Example: `cluster:my-db-cluster`.
+ SageMaker endpoint variant - The resource type is `variant` and the unique identifier is the resource ID. Example: `endpoint/my-end-point/variant/KMeansClustering`.
+ Custom resources are not supported with a resource type. This parameter must specify the `OutputValue` from the CloudFormation template stack used to access the resources. The unique identifier is defined by the service provider. More information is available in our [GitHub repository](https://github.com/aws/aws-auto-scaling-custom-resource).
+ Amazon Comprehend document classification endpoint - The resource type and unique identifier are specified using the endpoint ARN. Example: `arn:aws:comprehend:us-west-2:123456789012:document-classifier-endpoint/EXAMPLE`.
+ Amazon Comprehend entity recognizer endpoint - The resource type and unique identifier are specified using the endpoint ARN. Example: `arn:aws:comprehend:us-west-2:123456789012:entity-recognizer-endpoint/EXAMPLE`.
+ Lambda provisioned concurrency - The resource type is `function` and the unique identifier is the function name with a function version or alias name suffix that is not `$LATEST`. Example: `function:my-function:prod` or `function:my-function:1`.
+ Amazon Keyspaces table - The resource type is `table` and the unique identifier is the table name. Example: `keyspace/mykeyspace/table/mytable`.
+ Amazon MSK cluster - The resource type and unique identifier are specified using the cluster ARN. Example: `arn:aws:kafka:us-east-1:123456789012:cluster/demo-cluster-1/6357e0b2-0e6a-4b86-a0b4-70df934c2e31-5`.
+ Amazon ElastiCache replication group - The resource type is `replication-group` and the unique identifier is the replication group name. Example: `replication-group/mycluster`.
+ Amazon ElastiCache cache cluster - The resource type is `cache-cluster` and the unique identifier is the cache cluster name. Example: `cache-cluster/mycluster`.
+ Neptune cluster - The resource type is `cluster` and the unique identifier is the cluster name. Example: `cluster:mycluster`.
+ SageMaker serverless endpoint - The resource type is `variant` and the unique identifier is the resource ID. Example: `endpoint/my-end-point/variant/KMeansClustering`.
+ SageMaker inference component - The resource type is `inference-component` and the unique identifier is the resource ID. Example: `inference-component/my-inference-component`.
+ Pool of WorkSpaces - The resource type is `workspacespool` and the unique identifier is the pool ID. Example: `workspacespool/wspool-123456`.
*Required*: No  
*Type*: String  
*Pattern*: `[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*`  
*Minimum*: `1`  
*Maximum*: `1600`  
*Update requires*: [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)

`ScalableDimension`  <a name="cfn-applicationautoscaling-scalingpolicy-scalabledimension"></a>
The scalable dimension. This string consists of the service namespace, resource type, and scaling property.  
+ `ecs:service:DesiredCount` - The task count of an ECS service.
+ `elasticmapreduce:instancegroup:InstanceCount` - The instance count of an EMR Instance Group.
+ `ec2:spot-fleet-request:TargetCapacity` - The target capacity of a Spot Fleet.
+ `appstream:fleet:DesiredCapacity` - The capacity of an AppStream 2.0 fleet.
+ `dynamodb:table:ReadCapacityUnits` - The provisioned read capacity for a DynamoDB table.
+ `dynamodb:table:WriteCapacityUnits` - The provisioned write capacity for a DynamoDB table.
+ `dynamodb:index:ReadCapacityUnits` - The provisioned read capacity for a DynamoDB global secondary index.
+ `dynamodb:index:WriteCapacityUnits` - The provisioned write capacity for a DynamoDB global secondary index.
+ `rds:cluster:ReadReplicaCount` - The count of Aurora Replicas in an Aurora DB cluster. Available for Aurora MySQL-compatible edition and Aurora PostgreSQL-compatible edition.
+ `sagemaker:variant:DesiredInstanceCount` - The number of EC2 instances for a SageMaker model endpoint variant.
+ `custom-resource:ResourceType:Property` - The scalable dimension for a custom resource provided by your own application or service.
+ `comprehend:document-classifier-endpoint:DesiredInferenceUnits` - The number of inference units for an Amazon Comprehend document classification endpoint.
+ `comprehend:entity-recognizer-endpoint:DesiredInferenceUnits` - The number of inference units for an Amazon Comprehend entity recognizer endpoint.
+ `lambda:function:ProvisionedConcurrency` - The provisioned concurrency for a Lambda function.
+ `cassandra:table:ReadCapacityUnits` - The provisioned read capacity for an Amazon Keyspaces table.
+ `cassandra:table:WriteCapacityUnits` - The provisioned write capacity for an Amazon Keyspaces table.
+ `kafka:broker-storage:VolumeSize` - The provisioned volume size (in GiB) for brokers in an Amazon MSK cluster.
+ `elasticache:cache-cluster:Nodes` - The number of nodes for an Amazon ElastiCache cache cluster.
+ `elasticache:replication-group:NodeGroups` - The number of node groups for an Amazon ElastiCache replication group.
+ `elasticache:replication-group:Replicas` - The number of replicas per node group for an Amazon ElastiCache replication group.
+ `neptune:cluster:ReadReplicaCount` - The count of read replicas in an Amazon Neptune DB cluster.
+ `sagemaker:variant:DesiredProvisionedConcurrency` - The provisioned concurrency for a SageMaker serverless endpoint.
+ `sagemaker:inference-component:DesiredCopyCount` - The number of copies across an endpoint for a SageMaker inference component.
+ `workspaces:workspacespool:DesiredUserSessions` - The number of user sessions for the WorkSpaces in the pool.
*Required*: No  
*Type*: String  
*Allowed values*: `ecs:service:DesiredCount | ec2:spot-fleet-request:TargetCapacity | elasticmapreduce:instancegroup:InstanceCount | appstream:fleet:DesiredCapacity | dynamodb:table:ReadCapacityUnits | dynamodb:table:WriteCapacityUnits | dynamodb:index:ReadCapacityUnits | dynamodb:index:WriteCapacityUnits | rds:cluster:ReadReplicaCount | sagemaker:variant:DesiredInstanceCount | custom-resource:ResourceType:Property | comprehend:document-classifier-endpoint:DesiredInferenceUnits | comprehend:entity-recognizer-endpoint:DesiredInferenceUnits | lambda:function:ProvisionedConcurrency | cassandra:table:ReadCapacityUnits | cassandra:table:WriteCapacityUnits | kafka:broker-storage:VolumeSize | elasticache:cache-cluster:Nodes | elasticache:replication-group:NodeGroups | elasticache:replication-group:Replicas | neptune:cluster:ReadReplicaCount | sagemaker:variant:DesiredProvisionedConcurrency | sagemaker:inference-component:DesiredCopyCount | workspaces:workspacespool:DesiredUserSessions`  
*Update requires*: [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)

`ScalingTargetId`  <a name="cfn-applicationautoscaling-scalingpolicy-scalingtargetid"></a>
The CloudFormation-generated ID of an Application Auto Scaling scalable target. For more information about the ID, see the Return Value section of the `AWS::ApplicationAutoScaling::ScalableTarget` resource.  
You must specify either the `ScalingTargetId` property, or the `ResourceId`, `ScalableDimension`, and `ServiceNamespace` properties, but not both. 
*Required*: Conditional  
*Type*: String  
*Update requires*: [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)

`ServiceNamespace`  <a name="cfn-applicationautoscaling-scalingpolicy-servicenamespace"></a>
The namespace of the AWS service that provides the resource, or a `custom-resource`.  
*Required*: No  
*Type*: String  
*Allowed values*: `ecs | elasticmapreduce | ec2 | appstream | dynamodb | rds | sagemaker | custom-resource | comprehend | lambda | cassandra | kafka | elasticache | neptune | workspaces`  
*Update requires*: [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)

`StepScalingPolicyConfiguration`  <a name="cfn-applicationautoscaling-scalingpolicy-stepscalingpolicyconfiguration"></a>
A step scaling policy.  
*Required*: No  
*Type*: [StepScalingPolicyConfiguration](aws-properties-applicationautoscaling-scalingpolicy-stepscalingpolicyconfiguration.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`TargetTrackingScalingPolicyConfiguration`  <a name="cfn-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration"></a>
A target tracking scaling policy.  
*Required*: No  
*Type*: [TargetTrackingScalingPolicyConfiguration](aws-properties-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

## Return values
<a name="aws-resource-applicationautoscaling-scalingpolicy-return-values"></a>

### Ref
<a name="aws-resource-applicationautoscaling-scalingpolicy-return-values-ref"></a>

When the logical ID of this resource is provided to the `Ref` intrinsic function, `Ref` returns the Application Auto Scaling scaling policy Amazon Resource Name (ARN). For example: `arn:aws:autoscaling:us-east-2:123456789012:scalingPolicy:12ab3c4d-56789-0ef1-2345-6ghi7jk8lm90:resource/ecs/service/ecsStack-MyECSCluster-AB12CDE3F4GH/ecsStack-MyECSService-AB12CDE3F4GH:policyName/MyStepPolicy`.

For more information about using the `Ref` function, see [Ref](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/intrinsic-function-reference-ref.html). 

### Fn::GetAtt
<a name="aws-resource-applicationautoscaling-scalingpolicy-return-values-fn--getatt"></a>

The `Fn::GetAtt` intrinsic function returns a value for a specified attribute of this type. The following are the available attributes and sample return values.

For more information about using the `Fn::GetAtt` intrinsic function, see [https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/intrinsic-function-reference-getatt.html](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/intrinsic-function-reference-getatt.html).

#### 
<a name="aws-resource-applicationautoscaling-scalingpolicy-return-values-fn--getatt-fn--getatt"></a>

`Arn`  <a name="Arn-fn::getatt"></a>
Returns the ARN of a scaling policy.

## Remarks
<a name="aws-resource-applicationautoscaling-scalingpolicy--remarks"></a>

When you create the [AWS::CloudWatch::Alarm](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-cw-alarm.html) resource for a step scaling policy, specify the name of the scaling policy in the `AlarmActions` property.

## Examples
<a name="aws-resource-applicationautoscaling-scalingpolicy--examples"></a>

The following examples create scaling policies for a scalable target that is registered with Application Auto Scaling. 

For more sample template snippets, see [Configure Application Auto Scaling resources](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/quickref-application-auto-scaling.html).

**Topics**
+ [Target tracking scaling policy with a predefined metric](#aws-resource-applicationautoscaling-scalingpolicy--examples--Target_tracking_scaling_policy_with_a_predefined_metric)
+ [Step scaling policy](#aws-resource-applicationautoscaling-scalingpolicy--examples--Step_scaling_policy)

### Target tracking scaling policy with a predefined metric
<a name="aws-resource-applicationautoscaling-scalingpolicy--examples--Target_tracking_scaling_policy_with_a_predefined_metric"></a>

This example shows how to declare a new AWS::ApplicationAutoScaling::ScalingPolicy resource to create a new scaling policy using the `TargetTrackingScaling` policy type.

In this snippet, the policy specifies the `ECSServiceAverageCPUUtilization` predefined metric. The metrics used with a target tracking scaling policy are either custom or predefined. For the list of predefined metrics, see [PredefinedMetricSpecification](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-applicationautoscaling-scalingpolicy-predefinedmetricspecification.html). When the metric is at or exceeds 75 percent, the scaling policy increases (scales out) the capacity of the scalable target, and when it falls below 75 percent, the scaling policy decreases (scales in) the capacity of the scalable target. The scaling policy has a 60 second cooldown period after every scaling activity.

For more information, see [Target tracking scaling policies](https://docs.aws.amazon.com/autoscaling/application/userguide/application-auto-scaling-target-tracking.html) in the *Application Auto Scaling User Guide*.

#### JSON
<a name="aws-resource-applicationautoscaling-scalingpolicy--examples--Target_tracking_scaling_policy_with_a_predefined_metric--json"></a>

```
{
  "Resources":{
    "TargetTrackingScalingPolicy":{
      "Type":"AWS::ApplicationAutoScaling::ScalingPolicy",
      "Properties":{
        "PolicyName":"cpu75-target-tracking-scaling-policy",
        "PolicyType":"TargetTrackingScaling",
        "ScalingTargetId":{
          "Ref":"ScalableTarget"
        },
        "TargetTrackingScalingPolicyConfiguration":{
          "TargetValue":75.0,
          "ScaleInCooldown":60,
          "ScaleOutCooldown":60,
          "PredefinedMetricSpecification":{
            "PredefinedMetricType":"ECSServiceAverageCPUUtilization"
          }
        }
      }
    }
  }
}
```

#### YAML
<a name="aws-resource-applicationautoscaling-scalingpolicy--examples--Target_tracking_scaling_policy_with_a_predefined_metric--yaml"></a>

```
---
Resources:
  TargetTrackingScalingPolicy:
    Type: AWS::ApplicationAutoScaling::ScalingPolicy
    Properties:
      PolicyName: cpu75-target-tracking-scaling-policy
      PolicyType: TargetTrackingScaling
      ScalingTargetId: !Ref ScalableTarget
      TargetTrackingScalingPolicyConfiguration:
        TargetValue: 75.0
        ScaleInCooldown: 60
        ScaleOutCooldown: 60
        PredefinedMetricSpecification:
          PredefinedMetricType: ECSServiceAverageCPUUtilization
```

### Step scaling policy
<a name="aws-resource-applicationautoscaling-scalingpolicy--examples--Step_scaling_policy"></a>

The following example creates a scaling policy with the `StepScaling` policy type and the `ChangeInCapacity` adjustment type. When an associated alarm is triggered, the policy increases the capacity of the scalable target based on the following step adjustments (assuming a CloudWatch alarm threshold of 70 percent): 
+ Increase capacity by 1 when the value of the metric is greater than or equal to 70 percent but less than 85 percent 
+ Increase capacity by 2 when the value of the metric is greater than or equal to 85 percent but less than 95 percent 
+ Increase capacity by 3 when the value of the metric is greater than or equal to 95 percent 

In this snippet, the scaling policy has a 600 second cooldown period after every scaling activity.

For more information, see [Step scaling policies](https://docs.aws.amazon.com/autoscaling/application/userguide/application-auto-scaling-step-scaling-policies.html) in the *Application Auto Scaling User Guide*.

#### JSON
<a name="aws-resource-applicationautoscaling-scalingpolicy--examples--Step_scaling_policy--json"></a>

```
{
  "Resources":{
    "PolicyHigh":{
      "Type":"AWS::ApplicationAutoScaling::ScalingPolicy",
      "Properties":{
        "PolicyName":"PolicyHigh",
        "PolicyType":"StepScaling",
        "ScalingTargetId":{
          "Ref":"ScalableTarget"
        },
        "StepScalingPolicyConfiguration":{
          "AdjustmentType":"ChangeInCapacity",
          "Cooldown":600,
          "MetricAggregationType":"Average",
          "StepAdjustments":[
            {
              "MetricIntervalLowerBound":0,
              "MetricIntervalUpperBound":15,
              "ScalingAdjustment":1
            },
            {
              "MetricIntervalLowerBound":15,
              "MetricIntervalUpperBound":25,
              "ScalingAdjustment":2
            },
            {
              "MetricIntervalLowerBound":25,
              "ScalingAdjustment":3
            }
          ]
        }
      }
    }
  }
}
```

#### YAML
<a name="aws-resource-applicationautoscaling-scalingpolicy--examples--Step_scaling_policy--yaml"></a>

```
---
Resources:
  PolicyHigh:
    Type: AWS::ApplicationAutoScaling::ScalingPolicy
    Properties:
      PolicyName: PolicyHigh
      PolicyType: StepScaling
      ScalingTargetId:
        Ref: ScalableTarget
      StepScalingPolicyConfiguration:
        AdjustmentType: ChangeInCapacity
        Cooldown: 600
        MetricAggregationType: Average
        StepAdjustments:
        - MetricIntervalLowerBound: 0
          MetricIntervalUpperBound: 15
          ScalingAdjustment: 1
        - MetricIntervalLowerBound: 15
          MetricIntervalUpperBound: 25
          ScalingAdjustment: 2
        - MetricIntervalLowerBound: 25
          ScalingAdjustment: 3
```

## See also
<a name="aws-resource-applicationautoscaling-scalingpolicy--seealso"></a>
+ You can find additional useful snippets in [Configure Application Auto Scaling resources](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/quickref-application-auto-scaling.html)
+ [Getting started](https://docs.aws.amazon.com/autoscaling/application/userguide/getting-started.html) in the *Application Auto Scaling User Guide*
+ [How to use AWS CloudFormation to configure auto scaling for Amazon DynamoDB tables and indexes](https://aws.amazon.com/blogs/database/how-to-use-aws-cloudformation-to-configure-auto-scaling-for-amazon-dynamodb-tables-and-indexes/) on the AWS Blog



# AWS::ApplicationAutoScaling::ScalingPolicy CustomizedMetricSpecification
<a name="aws-properties-applicationautoscaling-scalingpolicy-customizedmetricspecification"></a>

Contains customized metric specification information for a target tracking scaling policy for Application Auto Scaling. 

For information about the available metrics for a service, see [AWS services that publish CloudWatch metrics](https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/aws-services-cloudwatch-metrics.html) in the *Amazon CloudWatch User Guide*.

To create your customized metric specification:
+ Add values for each required parameter from CloudWatch. You can use an existing metric, or a new metric that you create. To use your own metric, you must first publish the metric to CloudWatch. For more information, see [Publish custom metrics](https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/publishingMetrics.html) in the *Amazon CloudWatch User Guide*.
+ Choose a metric that changes proportionally with capacity. The value of the metric should increase or decrease in inverse proportion to the number of capacity units. That is, the value of the metric should decrease when capacity increases, and increase when capacity decreases. 

For an example of how creating new metrics can be useful, see [Scaling based on Amazon SQS](https://docs.aws.amazon.com/autoscaling/ec2/userguide/as-using-sqs-queue.html) in the *Amazon EC2 Auto Scaling User Guide*. This topic mentions Auto Scaling groups, but the same scenario for Amazon SQS can apply to the target tracking scaling policies that you create for a Spot Fleet by using Application Auto Scaling.

For more information about the CloudWatch terminology below, see [Amazon CloudWatch concepts](https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/cloudwatch_concepts.html). 

`CustomizedMetricSpecification` is a property of the [AWS::ApplicationAutoScaling::ScalingPolicy TargetTrackingScalingPolicyConfiguration](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration.html) property type.

## Syntax
<a name="aws-properties-applicationautoscaling-scalingpolicy-customizedmetricspecification-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-applicationautoscaling-scalingpolicy-customizedmetricspecification-syntax.json"></a>

```
{
  "[Dimensions](#cfn-applicationautoscaling-scalingpolicy-customizedmetricspecification-dimensions)" : [ MetricDimension, ... ],
  "[MetricName](#cfn-applicationautoscaling-scalingpolicy-customizedmetricspecification-metricname)" : String,
  "[Metrics](#cfn-applicationautoscaling-scalingpolicy-customizedmetricspecification-metrics)" : [ TargetTrackingMetricDataQuery, ... ],
  "[Namespace](#cfn-applicationautoscaling-scalingpolicy-customizedmetricspecification-namespace)" : String,
  "[Statistic](#cfn-applicationautoscaling-scalingpolicy-customizedmetricspecification-statistic)" : String,
  "[Unit](#cfn-applicationautoscaling-scalingpolicy-customizedmetricspecification-unit)" : String
}
```

### YAML
<a name="aws-properties-applicationautoscaling-scalingpolicy-customizedmetricspecification-syntax.yaml"></a>

```
  [Dimensions](#cfn-applicationautoscaling-scalingpolicy-customizedmetricspecification-dimensions): 
    - MetricDimension
  [MetricName](#cfn-applicationautoscaling-scalingpolicy-customizedmetricspecification-metricname): String
  [Metrics](#cfn-applicationautoscaling-scalingpolicy-customizedmetricspecification-metrics): 
    - TargetTrackingMetricDataQuery
  [Namespace](#cfn-applicationautoscaling-scalingpolicy-customizedmetricspecification-namespace): String
  [Statistic](#cfn-applicationautoscaling-scalingpolicy-customizedmetricspecification-statistic): String
  [Unit](#cfn-applicationautoscaling-scalingpolicy-customizedmetricspecification-unit): String
```

## Properties
<a name="aws-properties-applicationautoscaling-scalingpolicy-customizedmetricspecification-properties"></a>

`Dimensions`  <a name="cfn-applicationautoscaling-scalingpolicy-customizedmetricspecification-dimensions"></a>
The dimensions of the metric.   
Conditional: If you published your metric with dimensions, you must specify the same dimensions in your scaling policy.  
*Required*: No  
*Type*: Array of [MetricDimension](aws-properties-applicationautoscaling-scalingpolicy-metricdimension.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`MetricName`  <a name="cfn-applicationautoscaling-scalingpolicy-customizedmetricspecification-metricname"></a>
The name of the metric. To get the exact metric name, namespace, and dimensions, inspect the [Metric](https://docs.aws.amazon.com/AmazonCloudWatch/latest/APIReference/API_Metric.html) object that's returned by a call to [ListMetrics](https://docs.aws.amazon.com/AmazonCloudWatch/latest/APIReference/API_ListMetrics.html).  
*Required*: No  
*Type*: String  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Metrics`  <a name="cfn-applicationautoscaling-scalingpolicy-customizedmetricspecification-metrics"></a>
The metrics to include in the target tracking scaling policy, as a metric data query. This can include both raw metric and metric math expressions.  
*Required*: No  
*Type*: Array of [TargetTrackingMetricDataQuery](aws-properties-applicationautoscaling-scalingpolicy-targettrackingmetricdataquery.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Namespace`  <a name="cfn-applicationautoscaling-scalingpolicy-customizedmetricspecification-namespace"></a>
The namespace of the metric.  
*Required*: No  
*Type*: String  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Statistic`  <a name="cfn-applicationautoscaling-scalingpolicy-customizedmetricspecification-statistic"></a>
The statistic of the metric.  
*Required*: No  
*Type*: String  
*Allowed values*: `Average | Minimum | Maximum | SampleCount | Sum`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Unit`  <a name="cfn-applicationautoscaling-scalingpolicy-customizedmetricspecification-unit"></a>
The unit of the metric. For a complete list of the units that CloudWatch supports, see the [MetricDatum](https://docs.aws.amazon.com/AmazonCloudWatch/latest/APIReference/API_MetricDatum.html) data type in the *Amazon CloudWatch API Reference*.  
*Required*: No  
*Type*: String  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

## See also
<a name="aws-properties-applicationautoscaling-scalingpolicy-customizedmetricspecification--seealso"></a>
+  [Configure Application Auto Scaling resources](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/quickref-application-auto-scaling.html) 
+ [Getting started](https://docs.aws.amazon.com/autoscaling/application/userguide/getting-started.html) in the *Application Auto Scaling User Guide*



# AWS::ApplicationAutoScaling::ScalingPolicy MetricDimension
<a name="aws-properties-applicationautoscaling-scalingpolicy-metricdimension"></a>

`MetricDimension` specifies a name/value pair that is part of the identity of a CloudWatch metric for the `Dimensions` property of the [AWS::ApplicationAutoScaling::ScalingPolicy CustomizedMetricSpecification](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-applicationautoscaling-scalingpolicy-customizedmetricspecification.html) property type. Duplicate dimensions are not allowed. 

## Syntax
<a name="aws-properties-applicationautoscaling-scalingpolicy-metricdimension-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-applicationautoscaling-scalingpolicy-metricdimension-syntax.json"></a>

```
{
  "[Name](#cfn-applicationautoscaling-scalingpolicy-metricdimension-name)" : String,
  "[Value](#cfn-applicationautoscaling-scalingpolicy-metricdimension-value)" : String
}
```

### YAML
<a name="aws-properties-applicationautoscaling-scalingpolicy-metricdimension-syntax.yaml"></a>

```
  [Name](#cfn-applicationautoscaling-scalingpolicy-metricdimension-name): String
  [Value](#cfn-applicationautoscaling-scalingpolicy-metricdimension-value): String
```

## Properties
<a name="aws-properties-applicationautoscaling-scalingpolicy-metricdimension-properties"></a>

`Name`  <a name="cfn-applicationautoscaling-scalingpolicy-metricdimension-name"></a>
The name of the dimension.  
*Required*: Yes  
*Type*: String  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Value`  <a name="cfn-applicationautoscaling-scalingpolicy-metricdimension-value"></a>
The value of the dimension.  
*Required*: Yes  
*Type*: String  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

## See also
<a name="aws-properties-applicationautoscaling-scalingpolicy-metricdimension--seealso"></a>
+  [Configure Application Auto Scaling resources](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/quickref-application-auto-scaling.html) 
+ [Getting started](https://docs.aws.amazon.com/autoscaling/application/userguide/getting-started.html) in the *Application Auto Scaling User Guide*



# AWS::ApplicationAutoScaling::ScalingPolicy PredefinedMetricSpecification
<a name="aws-properties-applicationautoscaling-scalingpolicy-predefinedmetricspecification"></a>

Contains predefined metric specification information for a target tracking scaling policy for Application Auto Scaling.

`PredefinedMetricSpecification` is a property of the [AWS::ApplicationAutoScaling::ScalingPolicy TargetTrackingScalingPolicyConfiguration](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration.html) property type. 

## Syntax
<a name="aws-properties-applicationautoscaling-scalingpolicy-predefinedmetricspecification-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-applicationautoscaling-scalingpolicy-predefinedmetricspecification-syntax.json"></a>

```
{
  "[PredefinedMetricType](#cfn-applicationautoscaling-scalingpolicy-predefinedmetricspecification-predefinedmetrictype)" : String,
  "[ResourceLabel](#cfn-applicationautoscaling-scalingpolicy-predefinedmetricspecification-resourcelabel)" : String
}
```

### YAML
<a name="aws-properties-applicationautoscaling-scalingpolicy-predefinedmetricspecification-syntax.yaml"></a>

```
  [PredefinedMetricType](#cfn-applicationautoscaling-scalingpolicy-predefinedmetricspecification-predefinedmetrictype): String
  [ResourceLabel](#cfn-applicationautoscaling-scalingpolicy-predefinedmetricspecification-resourcelabel): String
```

## Properties
<a name="aws-properties-applicationautoscaling-scalingpolicy-predefinedmetricspecification-properties"></a>

`PredefinedMetricType`  <a name="cfn-applicationautoscaling-scalingpolicy-predefinedmetricspecification-predefinedmetrictype"></a>
The metric type. The `ALBRequestCountPerTarget` metric type applies only to Spot fleet requests and ECS services.   
*Required*: Yes  
*Type*: String  
*Allowed values*: `DynamoDBReadCapacityUtilization | DynamoDBWriteCapacityUtilization | ALBRequestCountPerTarget | RDSReaderAverageCPUUtilization | RDSReaderAverageDatabaseConnections | EC2SpotFleetRequestAverageCPUUtilization | EC2SpotFleetRequestAverageNetworkIn | EC2SpotFleetRequestAverageNetworkOut | SageMakerVariantInvocationsPerInstance | ECSServiceAverageCPUUtilization | ECSServiceAverageMemoryUtilization | AppStreamAverageCapacityUtilization | ComprehendInferenceUtilization | LambdaProvisionedConcurrencyUtilization | CassandraReadCapacityUtilization | CassandraWriteCapacityUtilization | KafkaBrokerStorageUtilization | ElastiCacheEngineCPUUtilization | ElastiCacheDatabaseMemoryUsagePercentage | ElastiCachePrimaryEngineCPUUtilization | ElastiCacheReplicaEngineCPUUtilization | ElastiCacheDatabaseMemoryUsageCountedForEvictPercentage | NeptuneReaderAverageCPUUtilization | SageMakerVariantProvisionedConcurrencyUtilization | ElastiCacheDatabaseCapacityUsageCountedForEvictPercentage | SageMakerInferenceComponentInvocationsPerCopy | WorkSpacesAverageUserSessionsCapacityUtilization | SageMakerInferenceComponentConcurrentRequestsPerCopyHighResolution | SageMakerVariantConcurrentRequestsPerModelHighResolution`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`ResourceLabel`  <a name="cfn-applicationautoscaling-scalingpolicy-predefinedmetricspecification-resourcelabel"></a>
Identifies the resource associated with the metric type. You can't specify a resource label unless the metric type is `ALBRequestCountPerTarget` and there is a target group attached to the Spot Fleet or ECS service.  
You create the resource label by appending the final portion of the load balancer ARN and the final portion of the target group ARN into a single value, separated by a forward slash (/). The format of the resource label is:  
`app/my-alb/778d41231b141a0f/targetgroup/my-alb-target-group/943f017f100becff`.  
Where:  
+ app/<load-balancer-name>/<load-balancer-id> is the final portion of the load balancer ARN
+ targetgroup/<target-group-name>/<target-group-id> is the final portion of the target group ARN.
To find the ARN for an Application Load Balancer, use the [DescribeLoadBalancers](https://docs.aws.amazon.com/elasticloadbalancing/latest/APIReference/API_DescribeLoadBalancers.html) API operation. To find the ARN for the target group, use the [DescribeTargetGroups](https://docs.aws.amazon.com/elasticloadbalancing/latest/APIReference/API_DescribeTargetGroups.html) API operation.  
*Required*: Conditional  
*Type*: String  
*Minimum*: `1`  
*Maximum*: `1023`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

## See also
<a name="aws-properties-applicationautoscaling-scalingpolicy-predefinedmetricspecification--seealso"></a>
+  [Configure Application Auto Scaling resources](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/quickref-application-auto-scaling.html) 
+ [Getting started](https://docs.aws.amazon.com/autoscaling/application/userguide/getting-started.html) in the *Application Auto Scaling User Guide*



# AWS::ApplicationAutoScaling::ScalingPolicy PredictiveScalingCustomizedCapacityMetric
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingcustomizedcapacitymetric"></a>

 Represents a CloudWatch metric of your choosing for a predictive scaling policy. 

## Syntax
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingcustomizedcapacitymetric-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingcustomizedcapacitymetric-syntax.json"></a>

```
{
  "[MetricDataQueries](#cfn-applicationautoscaling-scalingpolicy-predictivescalingcustomizedcapacitymetric-metricdataqueries)" : [ PredictiveScalingMetricDataQuery, ... ]
}
```

### YAML
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingcustomizedcapacitymetric-syntax.yaml"></a>

```
  [MetricDataQueries](#cfn-applicationautoscaling-scalingpolicy-predictivescalingcustomizedcapacitymetric-metricdataqueries): 
    - PredictiveScalingMetricDataQuery
```

## Properties
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingcustomizedcapacitymetric-properties"></a>

`MetricDataQueries`  <a name="cfn-applicationautoscaling-scalingpolicy-predictivescalingcustomizedcapacitymetric-metricdataqueries"></a>
 One or more metric data queries to provide data points for a metric specification.   
*Required*: Yes  
*Type*: Array of [PredictiveScalingMetricDataQuery](aws-properties-applicationautoscaling-scalingpolicy-predictivescalingmetricdataquery.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

# AWS::ApplicationAutoScaling::ScalingPolicy PredictiveScalingCustomizedLoadMetric
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingcustomizedloadmetric"></a>

 The customized load metric specification. 

## Syntax
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingcustomizedloadmetric-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingcustomizedloadmetric-syntax.json"></a>

```
{
  "[MetricDataQueries](#cfn-applicationautoscaling-scalingpolicy-predictivescalingcustomizedloadmetric-metricdataqueries)" : [ PredictiveScalingMetricDataQuery, ... ]
}
```

### YAML
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingcustomizedloadmetric-syntax.yaml"></a>

```
  [MetricDataQueries](#cfn-applicationautoscaling-scalingpolicy-predictivescalingcustomizedloadmetric-metricdataqueries): 
    - PredictiveScalingMetricDataQuery
```

## Properties
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingcustomizedloadmetric-properties"></a>

`MetricDataQueries`  <a name="cfn-applicationautoscaling-scalingpolicy-predictivescalingcustomizedloadmetric-metricdataqueries"></a>
Property description not available.  
*Required*: Yes  
*Type*: Array of [PredictiveScalingMetricDataQuery](aws-properties-applicationautoscaling-scalingpolicy-predictivescalingmetricdataquery.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

# AWS::ApplicationAutoScaling::ScalingPolicy PredictiveScalingCustomizedScalingMetric
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingcustomizedscalingmetric"></a>

<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingcustomizedscalingmetric-description"></a>The `PredictiveScalingCustomizedScalingMetric` property type specifies Property description not available. for an [AWS::ApplicationAutoScaling::ScalingPolicy](aws-resource-applicationautoscaling-scalingpolicy.md).

## Syntax
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingcustomizedscalingmetric-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingcustomizedscalingmetric-syntax.json"></a>

```
{
  "[MetricDataQueries](#cfn-applicationautoscaling-scalingpolicy-predictivescalingcustomizedscalingmetric-metricdataqueries)" : [ PredictiveScalingMetricDataQuery, ... ]
}
```

### YAML
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingcustomizedscalingmetric-syntax.yaml"></a>

```
  [MetricDataQueries](#cfn-applicationautoscaling-scalingpolicy-predictivescalingcustomizedscalingmetric-metricdataqueries): 
    - PredictiveScalingMetricDataQuery
```

## Properties
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingcustomizedscalingmetric-properties"></a>

`MetricDataQueries`  <a name="cfn-applicationautoscaling-scalingpolicy-predictivescalingcustomizedscalingmetric-metricdataqueries"></a>
 One or more metric data queries to provide data points for a metric specification.   
*Required*: Yes  
*Type*: Array of [PredictiveScalingMetricDataQuery](aws-properties-applicationautoscaling-scalingpolicy-predictivescalingmetricdataquery.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

# AWS::ApplicationAutoScaling::ScalingPolicy PredictiveScalingMetric
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingmetric"></a>

 Describes the scaling metric. 

## Syntax
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingmetric-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingmetric-syntax.json"></a>

```
{
  "[Dimensions](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetric-dimensions)" : [ PredictiveScalingMetricDimension, ... ],
  "[MetricName](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetric-metricname)" : String,
  "[Namespace](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetric-namespace)" : String
}
```

### YAML
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingmetric-syntax.yaml"></a>

```
  [Dimensions](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetric-dimensions): 
    - PredictiveScalingMetricDimension
  [MetricName](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetric-metricname): String
  [Namespace](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetric-namespace): String
```

## Properties
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingmetric-properties"></a>

`Dimensions`  <a name="cfn-applicationautoscaling-scalingpolicy-predictivescalingmetric-dimensions"></a>
 Describes the dimensions of the metric.   
*Required*: No  
*Type*: Array of [PredictiveScalingMetricDimension](aws-properties-applicationautoscaling-scalingpolicy-predictivescalingmetricdimension.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`MetricName`  <a name="cfn-applicationautoscaling-scalingpolicy-predictivescalingmetric-metricname"></a>
 The name of the metric.   
*Required*: No  
*Type*: String  
*Pattern*: `[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*`  
*Minimum*: `1`  
*Maximum*: `255`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Namespace`  <a name="cfn-applicationautoscaling-scalingpolicy-predictivescalingmetric-namespace"></a>
 The namespace of the metric.   
*Required*: No  
*Type*: String  
*Pattern*: `[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*`  
*Minimum*: `1`  
*Maximum*: `255`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

# AWS::ApplicationAutoScaling::ScalingPolicy PredictiveScalingMetricDataQuery
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingmetricdataquery"></a>

 The metric data to return. Also defines whether this call is returning data for one metric only, or whether it is performing a math expression on the values of returned metric statistics to create a new time series. A time series is a series of data points, each of which is associated with a timestamp. 

## Syntax
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingmetricdataquery-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingmetricdataquery-syntax.json"></a>

```
{
  "[Expression](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricdataquery-expression)" : String,
  "[Id](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricdataquery-id)" : String,
  "[Label](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricdataquery-label)" : String,
  "[MetricStat](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricdataquery-metricstat)" : PredictiveScalingMetricStat,
  "[ReturnData](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricdataquery-returndata)" : Boolean
}
```

### YAML
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingmetricdataquery-syntax.yaml"></a>

```
  [Expression](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricdataquery-expression): String
  [Id](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricdataquery-id): String
  [Label](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricdataquery-label): String
  [MetricStat](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricdataquery-metricstat): 
    PredictiveScalingMetricStat
  [ReturnData](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricdataquery-returndata): Boolean
```

## Properties
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingmetricdataquery-properties"></a>

`Expression`  <a name="cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricdataquery-expression"></a>
 The math expression to perform on the returned data, if this object is performing a math expression. This expression can use the `Id` of the other metrics to refer to those metrics, and can also use the `Id` of other expressions to use the result of those expressions.   
Conditional: Within each `MetricDataQuery` object, you must specify either `Expression` or `MetricStat`, but not both.  
*Required*: No  
*Type*: String  
*Pattern*: `[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*`  
*Minimum*: `1`  
*Maximum*: `2048`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Id`  <a name="cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricdataquery-id"></a>
 A short name that identifies the object's results in the response. This name must be unique among all `MetricDataQuery` objects specified for a single scaling policy. If you are performing math expressions on this set of data, this name represents that data and can serve as a variable in the mathematical expression. The valid characters are letters, numbers, and underscores. The first character must be a lowercase letter.   
*Required*: No  
*Type*: String  
*Pattern*: `[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*`  
*Minimum*: `1`  
*Maximum*: `255`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Label`  <a name="cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricdataquery-label"></a>
 A human-readable label for this metric or expression. This is especially useful if this is a math expression, so that you know what the value represents.   
*Required*: No  
*Type*: String  
*Pattern*: `[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`MetricStat`  <a name="cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricdataquery-metricstat"></a>
 Information about the metric data to return.   
Conditional: Within each `MetricDataQuery` object, you must specify either `Expression` or `MetricStat`, but not both.  
*Required*: No  
*Type*: [PredictiveScalingMetricStat](aws-properties-applicationautoscaling-scalingpolicy-predictivescalingmetricstat.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`ReturnData`  <a name="cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricdataquery-returndata"></a>
 Indicates whether to return the timestamps and raw data values of this metric.   
If you use any math expressions, specify `true` for this value for only the final math expression that the metric specification is based on. You must specify `false` for `ReturnData` for all the other metrics and expressions used in the metric specification.  
If you are only retrieving metrics and not performing any math expressions, do not specify anything for `ReturnData`. This sets it to its default (`true`).  
*Required*: No  
*Type*: Boolean  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

# AWS::ApplicationAutoScaling::ScalingPolicy PredictiveScalingMetricDimension
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingmetricdimension"></a>

 Describes the dimension of a metric. 

## Syntax
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingmetricdimension-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingmetricdimension-syntax.json"></a>

```
{
  "[Name](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricdimension-name)" : String,
  "[Value](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricdimension-value)" : String
}
```

### YAML
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingmetricdimension-syntax.yaml"></a>

```
  [Name](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricdimension-name): String
  [Value](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricdimension-value): String
```

## Properties
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingmetricdimension-properties"></a>

`Name`  <a name="cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricdimension-name"></a>
 The name of the dimension.   
*Required*: No  
*Type*: String  
*Pattern*: `[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*`  
*Minimum*: `1`  
*Maximum*: `255`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Value`  <a name="cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricdimension-value"></a>
 The value of the dimension.   
*Required*: No  
*Type*: String  
*Pattern*: `[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*`  
*Minimum*: `1`  
*Maximum*: `1024`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

# AWS::ApplicationAutoScaling::ScalingPolicy PredictiveScalingMetricSpecification
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingmetricspecification"></a>

 This structure specifies the metrics and target utilization settings for a predictive scaling policy. 

You must specify either a metric pair, or a load metric and a scaling metric individually. Specifying a metric pair instead of individual metrics provides a simpler way to configure metrics for a scaling policy. You choose the metric pair, and the policy automatically knows the correct sum and average statistics to use for the load metric and the scaling metric.

## Syntax
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingmetricspecification-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingmetricspecification-syntax.json"></a>

```
{
  "[CustomizedCapacityMetricSpecification](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricspecification-customizedcapacitymetricspecification)" : PredictiveScalingCustomizedCapacityMetric,
  "[CustomizedLoadMetricSpecification](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricspecification-customizedloadmetricspecification)" : PredictiveScalingCustomizedLoadMetric,
  "[CustomizedScalingMetricSpecification](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricspecification-customizedscalingmetricspecification)" : PredictiveScalingCustomizedScalingMetric,
  "[PredefinedLoadMetricSpecification](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricspecification-predefinedloadmetricspecification)" : PredictiveScalingPredefinedLoadMetric,
  "[PredefinedMetricPairSpecification](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricspecification-predefinedmetricpairspecification)" : PredictiveScalingPredefinedMetricPair,
  "[PredefinedScalingMetricSpecification](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricspecification-predefinedscalingmetricspecification)" : PredictiveScalingPredefinedScalingMetric,
  "[TargetValue](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricspecification-targetvalue)" : Number
}
```

### YAML
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingmetricspecification-syntax.yaml"></a>

```
  [CustomizedCapacityMetricSpecification](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricspecification-customizedcapacitymetricspecification): 
    PredictiveScalingCustomizedCapacityMetric
  [CustomizedLoadMetricSpecification](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricspecification-customizedloadmetricspecification): 
    PredictiveScalingCustomizedLoadMetric
  [CustomizedScalingMetricSpecification](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricspecification-customizedscalingmetricspecification): 
    PredictiveScalingCustomizedScalingMetric
  [PredefinedLoadMetricSpecification](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricspecification-predefinedloadmetricspecification): 
    PredictiveScalingPredefinedLoadMetric
  [PredefinedMetricPairSpecification](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricspecification-predefinedmetricpairspecification): 
    PredictiveScalingPredefinedMetricPair
  [PredefinedScalingMetricSpecification](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricspecification-predefinedscalingmetricspecification): 
    PredictiveScalingPredefinedScalingMetric
  [TargetValue](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricspecification-targetvalue): Number
```

## Properties
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingmetricspecification-properties"></a>

`CustomizedCapacityMetricSpecification`  <a name="cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricspecification-customizedcapacitymetricspecification"></a>
 The customized capacity metric specification.   
*Required*: No  
*Type*: [PredictiveScalingCustomizedCapacityMetric](aws-properties-applicationautoscaling-scalingpolicy-predictivescalingcustomizedcapacitymetric.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`CustomizedLoadMetricSpecification`  <a name="cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricspecification-customizedloadmetricspecification"></a>
 The customized load metric specification.   
*Required*: No  
*Type*: [PredictiveScalingCustomizedLoadMetric](aws-properties-applicationautoscaling-scalingpolicy-predictivescalingcustomizedloadmetric.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`CustomizedScalingMetricSpecification`  <a name="cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricspecification-customizedscalingmetricspecification"></a>
 The customized scaling metric specification.   
*Required*: No  
*Type*: [PredictiveScalingCustomizedScalingMetric](aws-properties-applicationautoscaling-scalingpolicy-predictivescalingcustomizedscalingmetric.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`PredefinedLoadMetricSpecification`  <a name="cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricspecification-predefinedloadmetricspecification"></a>
 The predefined load metric specification.   
*Required*: No  
*Type*: [PredictiveScalingPredefinedLoadMetric](aws-properties-applicationautoscaling-scalingpolicy-predictivescalingpredefinedloadmetric.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`PredefinedMetricPairSpecification`  <a name="cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricspecification-predefinedmetricpairspecification"></a>
 The predefined metric pair specification that determines the appropriate scaling metric and load metric to use.   
*Required*: No  
*Type*: [PredictiveScalingPredefinedMetricPair](aws-properties-applicationautoscaling-scalingpolicy-predictivescalingpredefinedmetricpair.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`PredefinedScalingMetricSpecification`  <a name="cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricspecification-predefinedscalingmetricspecification"></a>
 The predefined scaling metric specification.   
*Required*: No  
*Type*: [PredictiveScalingPredefinedScalingMetric](aws-properties-applicationautoscaling-scalingpolicy-predictivescalingpredefinedscalingmetric.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`TargetValue`  <a name="cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricspecification-targetvalue"></a>
 Specifies the target utilization.   
*Required*: Yes  
*Type*: Number  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

# AWS::ApplicationAutoScaling::ScalingPolicy PredictiveScalingMetricStat
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingmetricstat"></a>

 This structure defines the CloudWatch metric to return, along with the statistic and unit. 

## Syntax
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingmetricstat-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingmetricstat-syntax.json"></a>

```
{
  "[Metric](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricstat-metric)" : PredictiveScalingMetric,
  "[Stat](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricstat-stat)" : String,
  "[Unit](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricstat-unit)" : String
}
```

### YAML
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingmetricstat-syntax.yaml"></a>

```
  [Metric](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricstat-metric): 
    PredictiveScalingMetric
  [Stat](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricstat-stat): String
  [Unit](#cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricstat-unit): String
```

## Properties
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingmetricstat-properties"></a>

`Metric`  <a name="cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricstat-metric"></a>
 The CloudWatch metric to return, including the metric name, namespace, and dimensions. To get the exact metric name, namespace, and dimensions, inspect the [Metric](https://docs.aws.amazon.com/AmazonCloudWatch/latest/APIReference/API_Metric.html) object that is returned by a call to [ListMetrics](https://docs.aws.amazon.com/AmazonCloudWatch/latest/APIReference/API_ListMetrics.html).   
*Required*: No  
*Type*: [PredictiveScalingMetric](aws-properties-applicationautoscaling-scalingpolicy-predictivescalingmetric.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Stat`  <a name="cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricstat-stat"></a>
 The statistic to return. It can include any CloudWatch statistic or extended statistic. For a list of valid values, see the table in [Statistics](https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/cloudwatch_concepts.html#Statistic) in the *Amazon CloudWatch User Guide*.   
The most commonly used metrics for predictive scaling are `Average` and `Sum`.  
*Required*: No  
*Type*: String  
*Pattern*: `[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Unit`  <a name="cfn-applicationautoscaling-scalingpolicy-predictivescalingmetricstat-unit"></a>
 The unit to use for the returned data points. For a complete list of the units that CloudWatch supports, see the [MetricDatum](https://docs.aws.amazon.com/AmazonCloudWatch/latest/APIReference/API_MetricDatum.html) data type in the *Amazon CloudWatch API Reference*.   
*Required*: No  
*Type*: String  
*Pattern*: `[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*`  
*Minimum*: `1`  
*Maximum*: `1023`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

# AWS::ApplicationAutoScaling::ScalingPolicy PredictiveScalingPolicyConfiguration
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingpolicyconfiguration"></a>

 Represents a predictive scaling policy configuration. Predictive scaling is supported on Amazon ECS services. 

## Syntax
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingpolicyconfiguration-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingpolicyconfiguration-syntax.json"></a>

```
{
  "[MaxCapacityBreachBehavior](#cfn-applicationautoscaling-scalingpolicy-predictivescalingpolicyconfiguration-maxcapacitybreachbehavior)" : String,
  "[MaxCapacityBuffer](#cfn-applicationautoscaling-scalingpolicy-predictivescalingpolicyconfiguration-maxcapacitybuffer)" : Integer,
  "[MetricSpecifications](#cfn-applicationautoscaling-scalingpolicy-predictivescalingpolicyconfiguration-metricspecifications)" : [ PredictiveScalingMetricSpecification, ... ],
  "[Mode](#cfn-applicationautoscaling-scalingpolicy-predictivescalingpolicyconfiguration-mode)" : String,
  "[SchedulingBufferTime](#cfn-applicationautoscaling-scalingpolicy-predictivescalingpolicyconfiguration-schedulingbuffertime)" : Integer
}
```

### YAML
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingpolicyconfiguration-syntax.yaml"></a>

```
  [MaxCapacityBreachBehavior](#cfn-applicationautoscaling-scalingpolicy-predictivescalingpolicyconfiguration-maxcapacitybreachbehavior): String
  [MaxCapacityBuffer](#cfn-applicationautoscaling-scalingpolicy-predictivescalingpolicyconfiguration-maxcapacitybuffer): Integer
  [MetricSpecifications](#cfn-applicationautoscaling-scalingpolicy-predictivescalingpolicyconfiguration-metricspecifications): 
    - PredictiveScalingMetricSpecification
  [Mode](#cfn-applicationautoscaling-scalingpolicy-predictivescalingpolicyconfiguration-mode): String
  [SchedulingBufferTime](#cfn-applicationautoscaling-scalingpolicy-predictivescalingpolicyconfiguration-schedulingbuffertime): Integer
```

## Properties
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingpolicyconfiguration-properties"></a>

`MaxCapacityBreachBehavior`  <a name="cfn-applicationautoscaling-scalingpolicy-predictivescalingpolicyconfiguration-maxcapacitybreachbehavior"></a>
 Defines the behavior that should be applied if the forecast capacity approaches or exceeds the maximum capacity. Defaults to `HonorMaxCapacity` if not specified.   
*Required*: No  
*Type*: String  
*Allowed values*: `HonorMaxCapacity | IncreaseMaxCapacity`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`MaxCapacityBuffer`  <a name="cfn-applicationautoscaling-scalingpolicy-predictivescalingpolicyconfiguration-maxcapacitybuffer"></a>
 The size of the capacity buffer to use when the forecast capacity is close to or exceeds the maximum capacity. The value is specified as a percentage relative to the forecast capacity. For example, if the buffer is 10, this means a 10 percent buffer, such that if the forecast capacity is 50, and the maximum capacity is 40, then the effective maximum capacity is 55.   
Required if the `MaxCapacityBreachBehavior` property is set to `IncreaseMaxCapacity`, and cannot be used otherwise.  
*Required*: No  
*Type*: Integer  
*Minimum*: `0`  
*Maximum*: `100`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`MetricSpecifications`  <a name="cfn-applicationautoscaling-scalingpolicy-predictivescalingpolicyconfiguration-metricspecifications"></a>
 This structure includes the metrics and target utilization to use for predictive scaling.   
This is an array, but we currently only support a single metric specification. That is, you can specify a target value and a single metric pair, or a target value and one scaling metric and one load metric.  
*Required*: Yes  
*Type*: Array of [PredictiveScalingMetricSpecification](aws-properties-applicationautoscaling-scalingpolicy-predictivescalingmetricspecification.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Mode`  <a name="cfn-applicationautoscaling-scalingpolicy-predictivescalingpolicyconfiguration-mode"></a>
 The predictive scaling mode. Defaults to `ForecastOnly` if not specified.   
*Required*: No  
*Type*: String  
*Allowed values*: `ForecastOnly | ForecastAndScale`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`SchedulingBufferTime`  <a name="cfn-applicationautoscaling-scalingpolicy-predictivescalingpolicyconfiguration-schedulingbuffertime"></a>
 The amount of time, in seconds, that the start time can be advanced.   
The value must be less than the forecast interval duration of 3600 seconds (60 minutes). Defaults to 300 seconds if not specified.   
*Required*: No  
*Type*: Integer  
*Minimum*: `0`  
*Maximum*: `3600`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

# AWS::ApplicationAutoScaling::ScalingPolicy PredictiveScalingPredefinedLoadMetric
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingpredefinedloadmetric"></a>

 Describes a load metric for a predictive scaling policy. 

When returned in the output of `DescribePolicies`, it indicates that a predictive scaling policy uses individually specified load and scaling metrics instead of a metric pair.

The following predefined metrics are available for predictive scaling:
+  `ECSServiceAverageCPUUtilization` 
+  `ECSServiceAverageMemoryUtilization` 
+  `ECSServiceCPUUtilization` 
+  `ECSServiceMemoryUtilization` 
+  `ECSServiceTotalCPUUtilization` 
+  `ECSServiceTotalMemoryUtilization` 
+  `ALBRequestCount` 
+  `ALBRequestCountPerTarget` 
+  `TotalALBRequestCount` 

## Syntax
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingpredefinedloadmetric-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingpredefinedloadmetric-syntax.json"></a>

```
{
  "[PredefinedMetricType](#cfn-applicationautoscaling-scalingpolicy-predictivescalingpredefinedloadmetric-predefinedmetrictype)" : String,
  "[ResourceLabel](#cfn-applicationautoscaling-scalingpolicy-predictivescalingpredefinedloadmetric-resourcelabel)" : String
}
```

### YAML
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingpredefinedloadmetric-syntax.yaml"></a>

```
  [PredefinedMetricType](#cfn-applicationautoscaling-scalingpolicy-predictivescalingpredefinedloadmetric-predefinedmetrictype): String
  [ResourceLabel](#cfn-applicationautoscaling-scalingpolicy-predictivescalingpredefinedloadmetric-resourcelabel): String
```

## Properties
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingpredefinedloadmetric-properties"></a>

`PredefinedMetricType`  <a name="cfn-applicationautoscaling-scalingpolicy-predictivescalingpredefinedloadmetric-predefinedmetrictype"></a>
 The metric type.   
*Required*: Yes  
*Type*: String  
*Minimum*: `1`  
*Maximum*: `128`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`ResourceLabel`  <a name="cfn-applicationautoscaling-scalingpolicy-predictivescalingpredefinedloadmetric-resourcelabel"></a>
 A label that uniquely identifies a target group.   
*Required*: No  
*Type*: String  
*Minimum*: `1`  
*Maximum*: `1023`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

# AWS::ApplicationAutoScaling::ScalingPolicy PredictiveScalingPredefinedMetricPair
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingpredefinedmetricpair"></a>

 Represents a metric pair for a predictive scaling policy. 

The following predefined metrics are available for predictive scaling:
+  `ECSServiceAverageCPUUtilization` 
+  `ECSServiceAverageMemoryUtilization` 
+  `ECSServiceCPUUtilization` 
+  `ECSServiceMemoryUtilization` 
+  `ECSServiceTotalCPUUtilization` 
+  `ECSServiceTotalMemoryUtilization` 
+  `ALBRequestCount` 
+  `ALBRequestCountPerTarget` 
+  `TotalALBRequestCount` 

## Syntax
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingpredefinedmetricpair-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingpredefinedmetricpair-syntax.json"></a>

```
{
  "[PredefinedMetricType](#cfn-applicationautoscaling-scalingpolicy-predictivescalingpredefinedmetricpair-predefinedmetrictype)" : String,
  "[ResourceLabel](#cfn-applicationautoscaling-scalingpolicy-predictivescalingpredefinedmetricpair-resourcelabel)" : String
}
```

### YAML
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingpredefinedmetricpair-syntax.yaml"></a>

```
  [PredefinedMetricType](#cfn-applicationautoscaling-scalingpolicy-predictivescalingpredefinedmetricpair-predefinedmetrictype): String
  [ResourceLabel](#cfn-applicationautoscaling-scalingpolicy-predictivescalingpredefinedmetricpair-resourcelabel): String
```

## Properties
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingpredefinedmetricpair-properties"></a>

`PredefinedMetricType`  <a name="cfn-applicationautoscaling-scalingpolicy-predictivescalingpredefinedmetricpair-predefinedmetrictype"></a>
 Indicates which metrics to use. There are two different types of metrics for each metric type: one is a load metric and one is a scaling metric.   
*Required*: Yes  
*Type*: String  
*Minimum*: `1`  
*Maximum*: `128`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`ResourceLabel`  <a name="cfn-applicationautoscaling-scalingpolicy-predictivescalingpredefinedmetricpair-resourcelabel"></a>
 A label that uniquely identifies a specific target group from which to determine the total and average request count.   
*Required*: No  
*Type*: String  
*Minimum*: `1`  
*Maximum*: `1023`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

# AWS::ApplicationAutoScaling::ScalingPolicy PredictiveScalingPredefinedScalingMetric
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingpredefinedscalingmetric"></a>

 Describes a scaling metric for a predictive scaling policy. 

When returned in the output of `DescribePolicies`, it indicates that a predictive scaling policy uses individually specified load and scaling metrics instead of a metric pair.

The following predefined metrics are available for predictive scaling:
+  `ECSServiceAverageCPUUtilization` 
+  `ECSServiceAverageMemoryUtilization` 
+  `ECSServiceCPUUtilization` 
+  `ECSServiceMemoryUtilization` 
+  `ECSServiceTotalCPUUtilization` 
+  `ECSServiceTotalMemoryUtilization` 
+  `ALBRequestCount` 
+  `ALBRequestCountPerTarget` 
+  `TotalALBRequestCount` 

## Syntax
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingpredefinedscalingmetric-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingpredefinedscalingmetric-syntax.json"></a>

```
{
  "[PredefinedMetricType](#cfn-applicationautoscaling-scalingpolicy-predictivescalingpredefinedscalingmetric-predefinedmetrictype)" : String,
  "[ResourceLabel](#cfn-applicationautoscaling-scalingpolicy-predictivescalingpredefinedscalingmetric-resourcelabel)" : String
}
```

### YAML
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingpredefinedscalingmetric-syntax.yaml"></a>

```
  [PredefinedMetricType](#cfn-applicationautoscaling-scalingpolicy-predictivescalingpredefinedscalingmetric-predefinedmetrictype): String
  [ResourceLabel](#cfn-applicationautoscaling-scalingpolicy-predictivescalingpredefinedscalingmetric-resourcelabel): String
```

## Properties
<a name="aws-properties-applicationautoscaling-scalingpolicy-predictivescalingpredefinedscalingmetric-properties"></a>

`PredefinedMetricType`  <a name="cfn-applicationautoscaling-scalingpolicy-predictivescalingpredefinedscalingmetric-predefinedmetrictype"></a>
 The metric type.   
*Required*: Yes  
*Type*: String  
*Minimum*: `1`  
*Maximum*: `128`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`ResourceLabel`  <a name="cfn-applicationautoscaling-scalingpolicy-predictivescalingpredefinedscalingmetric-resourcelabel"></a>
 A label that uniquely identifies a specific target group from which to determine the average request count.   
*Required*: No  
*Type*: String  
*Minimum*: `1`  
*Maximum*: `1023`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

# AWS::ApplicationAutoScaling::ScalingPolicy StepAdjustment
<a name="aws-properties-applicationautoscaling-scalingpolicy-stepadjustment"></a>

`StepAdjustment` specifies a step adjustment for the `StepAdjustments` property of the [AWS::ApplicationAutoScaling::ScalingPolicy StepScalingPolicyConfiguration](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-applicationautoscaling-scalingpolicy-stepscalingpolicyconfiguration.html) property type. 

For the following examples, suppose that you have an alarm with a breach threshold of 50: 
+ To trigger a step adjustment when the metric is greater than or equal to 50 and less than 60, specify a lower bound of 0 and an upper bound of 10. 
+ To trigger a step adjustment when the metric is greater than 40 and less than or equal to 50, specify a lower bound of -10 and an upper bound of 0. 

For more information, see [Step adjustments](https://docs.aws.amazon.com/autoscaling/application/userguide/application-auto-scaling-step-scaling-policies.html#as-scaling-steps) in the *Application Auto Scaling User Guide*.

You can find a sample template snippet in the [Examples](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-applicationautoscaling-scalingpolicy.html#aws-resource-applicationautoscaling-scalingpolicy--examples) section of the `AWS::ApplicationAutoScaling::ScalingPolicy` documentation.

## Syntax
<a name="aws-properties-applicationautoscaling-scalingpolicy-stepadjustment-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-applicationautoscaling-scalingpolicy-stepadjustment-syntax.json"></a>

```
{
  "[MetricIntervalLowerBound](#cfn-applicationautoscaling-scalingpolicy-stepadjustment-metricintervallowerbound)" : Number,
  "[MetricIntervalUpperBound](#cfn-applicationautoscaling-scalingpolicy-stepadjustment-metricintervalupperbound)" : Number,
  "[ScalingAdjustment](#cfn-applicationautoscaling-scalingpolicy-stepadjustment-scalingadjustment)" : Integer
}
```

### YAML
<a name="aws-properties-applicationautoscaling-scalingpolicy-stepadjustment-syntax.yaml"></a>

```
  [MetricIntervalLowerBound](#cfn-applicationautoscaling-scalingpolicy-stepadjustment-metricintervallowerbound): Number
  [MetricIntervalUpperBound](#cfn-applicationautoscaling-scalingpolicy-stepadjustment-metricintervalupperbound): Number
  [ScalingAdjustment](#cfn-applicationautoscaling-scalingpolicy-stepadjustment-scalingadjustment): Integer
```

## Properties
<a name="aws-properties-applicationautoscaling-scalingpolicy-stepadjustment-properties"></a>

`MetricIntervalLowerBound`  <a name="cfn-applicationautoscaling-scalingpolicy-stepadjustment-metricintervallowerbound"></a>
The lower bound for the difference between the alarm threshold and the CloudWatch metric. If the metric value is above the breach threshold, the lower bound is inclusive (the metric must be greater than or equal to the threshold plus the lower bound). Otherwise, it is exclusive (the metric must be greater than the threshold plus the lower bound). A null value indicates negative infinity.  
You must specify at least one upper or lower bound.  
*Required*: Conditional  
*Type*: Number  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`MetricIntervalUpperBound`  <a name="cfn-applicationautoscaling-scalingpolicy-stepadjustment-metricintervalupperbound"></a>
The upper bound for the difference between the alarm threshold and the CloudWatch metric. If the metric value is above the breach threshold, the upper bound is exclusive (the metric must be less than the threshold plus the upper bound). Otherwise, it is inclusive (the metric must be less than or equal to the threshold plus the upper bound). A null value indicates positive infinity.  
You must specify at least one upper or lower bound.  
*Required*: Conditional  
*Type*: Number  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`ScalingAdjustment`  <a name="cfn-applicationautoscaling-scalingpolicy-stepadjustment-scalingadjustment"></a>
The amount by which to scale. The adjustment is based on the value that you specified in the `AdjustmentType` property (either an absolute number or a percentage). A positive value adds to the current capacity and a negative number subtracts from the current capacity.   
*Required*: Yes  
*Type*: Integer  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

## See also
<a name="aws-properties-applicationautoscaling-scalingpolicy-stepadjustment--seealso"></a>
+  [Configure Application Auto Scaling resources](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/quickref-application-auto-scaling.html) 
+ [Getting started](https://docs.aws.amazon.com/autoscaling/application/userguide/getting-started.html) in the *Application Auto Scaling User Guide*



# AWS::ApplicationAutoScaling::ScalingPolicy StepScalingPolicyConfiguration
<a name="aws-properties-applicationautoscaling-scalingpolicy-stepscalingpolicyconfiguration"></a>

`StepScalingPolicyConfiguration` is a property of the [AWS::ApplicationAutoScaling::ScalingPolicy](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-applicationautoscaling-scalingpolicy.html) resource that specifies a step scaling policy configuration for Application Auto Scaling. 

For more information, see [Step scaling policies](https://docs.aws.amazon.com/autoscaling/application/userguide/application-auto-scaling-step-scaling-policies.html) in the *Application Auto Scaling User Guide*.

## Syntax
<a name="aws-properties-applicationautoscaling-scalingpolicy-stepscalingpolicyconfiguration-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-applicationautoscaling-scalingpolicy-stepscalingpolicyconfiguration-syntax.json"></a>

```
{
  "[AdjustmentType](#cfn-applicationautoscaling-scalingpolicy-stepscalingpolicyconfiguration-adjustmenttype)" : String,
  "[Cooldown](#cfn-applicationautoscaling-scalingpolicy-stepscalingpolicyconfiguration-cooldown)" : Integer,
  "[MetricAggregationType](#cfn-applicationautoscaling-scalingpolicy-stepscalingpolicyconfiguration-metricaggregationtype)" : String,
  "[MinAdjustmentMagnitude](#cfn-applicationautoscaling-scalingpolicy-stepscalingpolicyconfiguration-minadjustmentmagnitude)" : Integer,
  "[StepAdjustments](#cfn-applicationautoscaling-scalingpolicy-stepscalingpolicyconfiguration-stepadjustments)" : [ StepAdjustment, ... ]
}
```

### YAML
<a name="aws-properties-applicationautoscaling-scalingpolicy-stepscalingpolicyconfiguration-syntax.yaml"></a>

```
  [AdjustmentType](#cfn-applicationautoscaling-scalingpolicy-stepscalingpolicyconfiguration-adjustmenttype): String
  [Cooldown](#cfn-applicationautoscaling-scalingpolicy-stepscalingpolicyconfiguration-cooldown): Integer
  [MetricAggregationType](#cfn-applicationautoscaling-scalingpolicy-stepscalingpolicyconfiguration-metricaggregationtype): String
  [MinAdjustmentMagnitude](#cfn-applicationautoscaling-scalingpolicy-stepscalingpolicyconfiguration-minadjustmentmagnitude): Integer
  [StepAdjustments](#cfn-applicationautoscaling-scalingpolicy-stepscalingpolicyconfiguration-stepadjustments): 
    - StepAdjustment
```

## Properties
<a name="aws-properties-applicationautoscaling-scalingpolicy-stepscalingpolicyconfiguration-properties"></a>

`AdjustmentType`  <a name="cfn-applicationautoscaling-scalingpolicy-stepscalingpolicyconfiguration-adjustmenttype"></a>
Specifies whether the `ScalingAdjustment` value in the `StepAdjustment` property is an absolute number or a percentage of the current capacity.   
*Required*: No  
*Type*: String  
*Allowed values*: `ChangeInCapacity | PercentChangeInCapacity | ExactCapacity`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Cooldown`  <a name="cfn-applicationautoscaling-scalingpolicy-stepscalingpolicyconfiguration-cooldown"></a>
The amount of time, in seconds, to wait for a previous scaling activity to take effect. If not specified, the default value is 300. For more information, see [Cooldown period](https://docs.aws.amazon.com/autoscaling/application/userguide/step-scaling-policy-overview.html#step-scaling-cooldown) in the *Application Auto Scaling User Guide*.  
*Required*: No  
*Type*: Integer  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`MetricAggregationType`  <a name="cfn-applicationautoscaling-scalingpolicy-stepscalingpolicyconfiguration-metricaggregationtype"></a>
The aggregation type for the CloudWatch metrics. Valid values are `Minimum`, `Maximum`, and `Average`. If the aggregation type is null, the value is treated as `Average`.  
*Required*: No  
*Type*: String  
*Allowed values*: `Average | Minimum | Maximum`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`MinAdjustmentMagnitude`  <a name="cfn-applicationautoscaling-scalingpolicy-stepscalingpolicyconfiguration-minadjustmentmagnitude"></a>
The minimum value to scale by when the adjustment type is `PercentChangeInCapacity`. For example, suppose that you create a step scaling policy to scale out an Amazon ECS service by 25 percent and you specify a `MinAdjustmentMagnitude` of 2. If the service has 4 tasks and the scaling policy is performed, 25 percent of 4 is 1. However, because you specified a `MinAdjustmentMagnitude` of 2, Application Auto Scaling scales out the service by 2 tasks.  
*Required*: No  
*Type*: Integer  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`StepAdjustments`  <a name="cfn-applicationautoscaling-scalingpolicy-stepscalingpolicyconfiguration-stepadjustments"></a>
A set of adjustments that enable you to scale based on the size of the alarm breach.  
At least one step adjustment is required if you are adding a new step scaling policy configuration.  
*Required*: No  
*Type*: Array of [StepAdjustment](aws-properties-applicationautoscaling-scalingpolicy-stepadjustment.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

## See also
<a name="aws-properties-applicationautoscaling-scalingpolicy-stepscalingpolicyconfiguration--seealso"></a>
+  [Configure Application Auto Scaling resources](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/quickref-application-auto-scaling.html) 
+ [Getting started](https://docs.aws.amazon.com/autoscaling/application/userguide/getting-started.html) in the *Application Auto Scaling User Guide*



# AWS::ApplicationAutoScaling::ScalingPolicy TargetTrackingMetric
<a name="aws-properties-applicationautoscaling-scalingpolicy-targettrackingmetric"></a>

Represents a specific metric for a target tracking scaling policy for Application Auto Scaling.

Metric is a property of the [AWS::ApplicationAutoScaling::ScalingPolicy TargetTrackingMetricStat](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-applicationautoscaling-scalingpolicy-targettrackingmetricstat.html) property type.

## Syntax
<a name="aws-properties-applicationautoscaling-scalingpolicy-targettrackingmetric-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-applicationautoscaling-scalingpolicy-targettrackingmetric-syntax.json"></a>

```
{
  "[Dimensions](#cfn-applicationautoscaling-scalingpolicy-targettrackingmetric-dimensions)" : [ TargetTrackingMetricDimension, ... ],
  "[MetricName](#cfn-applicationautoscaling-scalingpolicy-targettrackingmetric-metricname)" : String,
  "[Namespace](#cfn-applicationautoscaling-scalingpolicy-targettrackingmetric-namespace)" : String
}
```

### YAML
<a name="aws-properties-applicationautoscaling-scalingpolicy-targettrackingmetric-syntax.yaml"></a>

```
  [Dimensions](#cfn-applicationautoscaling-scalingpolicy-targettrackingmetric-dimensions): 
    - TargetTrackingMetricDimension
  [MetricName](#cfn-applicationautoscaling-scalingpolicy-targettrackingmetric-metricname): String
  [Namespace](#cfn-applicationautoscaling-scalingpolicy-targettrackingmetric-namespace): String
```

## Properties
<a name="aws-properties-applicationautoscaling-scalingpolicy-targettrackingmetric-properties"></a>

`Dimensions`  <a name="cfn-applicationautoscaling-scalingpolicy-targettrackingmetric-dimensions"></a>
The dimensions for the metric. For the list of available dimensions, see the AWS documentation available from the table in [AWS services that publish CloudWatch metrics ](https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/aws-services-cloudwatch-metrics.html) in the *Amazon CloudWatch User Guide*.   
Conditional: If you published your metric with dimensions, you must specify the same dimensions in your scaling policy.  
*Required*: No  
*Type*: Array of [TargetTrackingMetricDimension](aws-properties-applicationautoscaling-scalingpolicy-targettrackingmetricdimension.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`MetricName`  <a name="cfn-applicationautoscaling-scalingpolicy-targettrackingmetric-metricname"></a>
The name of the metric.  
*Required*: No  
*Type*: String  
*Pattern*: `[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*`  
*Minimum*: `1`  
*Maximum*: `255`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Namespace`  <a name="cfn-applicationautoscaling-scalingpolicy-targettrackingmetric-namespace"></a>
The namespace of the metric. For more information, see the table in [AWS services that publish CloudWatch metrics ](https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/aws-services-cloudwatch-metrics.html) in the *Amazon CloudWatch User Guide*.  
*Required*: No  
*Type*: String  
*Pattern*: `[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*`  
*Minimum*: `1`  
*Maximum*: `255`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

# AWS::ApplicationAutoScaling::ScalingPolicy TargetTrackingMetricDataQuery
<a name="aws-properties-applicationautoscaling-scalingpolicy-targettrackingmetricdataquery"></a>

The metric data to return. Also defines whether this call is returning data for one metric only, or whether it is performing a math expression on the values of returned metric statistics to create a new time series. A time series is a series of data points, each of which is associated with a timestamp.

You can call for a single metric or perform math expressions on multiple metrics. Any expressions used in a metric specification must eventually return a single time series.

For more information and examples, see [Create a target tracking scaling policy for Application Auto Scaling using metric math](https://docs.aws.amazon.com/autoscaling/application/userguide/application-auto-scaling-target-tracking-metric-math.html) in the *Application Auto Scaling User Guide*.

`TargetTrackingMetricDataQuery` is a property of the [AWS::ApplicationAutoScaling::ScalingPolicy CustomizedMetricSpecification](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-applicationautoscaling-scalingpolicy-customizedmetricspecification.html) property type.

## Syntax
<a name="aws-properties-applicationautoscaling-scalingpolicy-targettrackingmetricdataquery-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-applicationautoscaling-scalingpolicy-targettrackingmetricdataquery-syntax.json"></a>

```
{
  "[Expression](#cfn-applicationautoscaling-scalingpolicy-targettrackingmetricdataquery-expression)" : String,
  "[Id](#cfn-applicationautoscaling-scalingpolicy-targettrackingmetricdataquery-id)" : String,
  "[Label](#cfn-applicationautoscaling-scalingpolicy-targettrackingmetricdataquery-label)" : String,
  "[MetricStat](#cfn-applicationautoscaling-scalingpolicy-targettrackingmetricdataquery-metricstat)" : TargetTrackingMetricStat,
  "[ReturnData](#cfn-applicationautoscaling-scalingpolicy-targettrackingmetricdataquery-returndata)" : Boolean
}
```

### YAML
<a name="aws-properties-applicationautoscaling-scalingpolicy-targettrackingmetricdataquery-syntax.yaml"></a>

```
  [Expression](#cfn-applicationautoscaling-scalingpolicy-targettrackingmetricdataquery-expression): String
  [Id](#cfn-applicationautoscaling-scalingpolicy-targettrackingmetricdataquery-id): String
  [Label](#cfn-applicationautoscaling-scalingpolicy-targettrackingmetricdataquery-label): String
  [MetricStat](#cfn-applicationautoscaling-scalingpolicy-targettrackingmetricdataquery-metricstat): 
    TargetTrackingMetricStat
  [ReturnData](#cfn-applicationautoscaling-scalingpolicy-targettrackingmetricdataquery-returndata): Boolean
```

## Properties
<a name="aws-properties-applicationautoscaling-scalingpolicy-targettrackingmetricdataquery-properties"></a>

`Expression`  <a name="cfn-applicationautoscaling-scalingpolicy-targettrackingmetricdataquery-expression"></a>
The math expression to perform on the returned data, if this object is performing a math expression. This expression can use the `Id` of the other metrics to refer to those metrics, and can also use the `Id` of other expressions to use the result of those expressions.   
Conditional: Within each `TargetTrackingMetricDataQuery` object, you must specify either `Expression` or `MetricStat`, but not both.  
*Required*: No  
*Type*: String  
*Pattern*: `[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*`  
*Minimum*: `1`  
*Maximum*: `2048`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Id`  <a name="cfn-applicationautoscaling-scalingpolicy-targettrackingmetricdataquery-id"></a>
A short name that identifies the object's results in the response. This name must be unique among all `MetricDataQuery` objects specified for a single scaling policy. If you are performing math expressions on this set of data, this name represents that data and can serve as a variable in the mathematical expression. The valid characters are letters, numbers, and underscores. The first character must be a lowercase letter.   
*Required*: No  
*Type*: String  
*Pattern*: `[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*`  
*Minimum*: `1`  
*Maximum*: `255`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Label`  <a name="cfn-applicationautoscaling-scalingpolicy-targettrackingmetricdataquery-label"></a>
A human-readable label for this metric or expression. This is especially useful if this is a math expression, so that you know what the value represents.  
*Required*: No  
*Type*: String  
*Pattern*: `[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`MetricStat`  <a name="cfn-applicationautoscaling-scalingpolicy-targettrackingmetricdataquery-metricstat"></a>
Information about the metric data to return.  
Conditional: Within each `MetricDataQuery` object, you must specify either `Expression` or `MetricStat`, but not both.  
*Required*: No  
*Type*: [TargetTrackingMetricStat](aws-properties-applicationautoscaling-scalingpolicy-targettrackingmetricstat.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`ReturnData`  <a name="cfn-applicationautoscaling-scalingpolicy-targettrackingmetricdataquery-returndata"></a>
Indicates whether to return the timestamps and raw data values of this metric.   
If you use any math expressions, specify `true` for this value for only the final math expression that the metric specification is based on. You must specify `false` for `ReturnData` for all the other metrics and expressions used in the metric specification.  
If you are only retrieving metrics and not performing any math expressions, do not specify anything for `ReturnData`. This sets it to its default (`true`).  
*Required*: No  
*Type*: Boolean  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

# AWS::ApplicationAutoScaling::ScalingPolicy TargetTrackingMetricDimension
<a name="aws-properties-applicationautoscaling-scalingpolicy-targettrackingmetricdimension"></a>

`TargetTrackingMetricDimension` specifies a name/value pair that is part of the identity of a CloudWatch metric for the `Dimensions` property of the [AWS::ApplicationAutoScaling::ScalingPolicy TargetTrackingMetric](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-applicationautoscaling-scalingpolicy-targettrackingmetric.html) property type. Duplicate dimensions are not allowed. 

## Syntax
<a name="aws-properties-applicationautoscaling-scalingpolicy-targettrackingmetricdimension-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-applicationautoscaling-scalingpolicy-targettrackingmetricdimension-syntax.json"></a>

```
{
  "[Name](#cfn-applicationautoscaling-scalingpolicy-targettrackingmetricdimension-name)" : String,
  "[Value](#cfn-applicationautoscaling-scalingpolicy-targettrackingmetricdimension-value)" : String
}
```

### YAML
<a name="aws-properties-applicationautoscaling-scalingpolicy-targettrackingmetricdimension-syntax.yaml"></a>

```
  [Name](#cfn-applicationautoscaling-scalingpolicy-targettrackingmetricdimension-name): String
  [Value](#cfn-applicationautoscaling-scalingpolicy-targettrackingmetricdimension-value): String
```

## Properties
<a name="aws-properties-applicationautoscaling-scalingpolicy-targettrackingmetricdimension-properties"></a>

`Name`  <a name="cfn-applicationautoscaling-scalingpolicy-targettrackingmetricdimension-name"></a>
The name of the dimension.  
*Required*: No  
*Type*: String  
*Pattern*: `[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*`  
*Minimum*: `1`  
*Maximum*: `255`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Value`  <a name="cfn-applicationautoscaling-scalingpolicy-targettrackingmetricdimension-value"></a>
The value of the dimension.  
*Required*: No  
*Type*: String  
*Pattern*: `[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*`  
*Minimum*: `1`  
*Maximum*: `1024`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

# AWS::ApplicationAutoScaling::ScalingPolicy TargetTrackingMetricStat
<a name="aws-properties-applicationautoscaling-scalingpolicy-targettrackingmetricstat"></a>

This structure defines the CloudWatch metric to return, along with the statistic and unit.

`TargetTrackingMetricStat` is a property of the [AWS::ApplicationAutoScaling::ScalingPolicy TargetTrackingMetricDataQuery](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-applicationautoscaling-scalingpolicy-targettrackingmetricdataquery.html) property type.

For more information about the CloudWatch terminology below, see [Amazon CloudWatch concepts](https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/cloudwatch_concepts.html) in the *Amazon CloudWatch User Guide*.

## Syntax
<a name="aws-properties-applicationautoscaling-scalingpolicy-targettrackingmetricstat-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-applicationautoscaling-scalingpolicy-targettrackingmetricstat-syntax.json"></a>

```
{
  "[Metric](#cfn-applicationautoscaling-scalingpolicy-targettrackingmetricstat-metric)" : TargetTrackingMetric,
  "[Stat](#cfn-applicationautoscaling-scalingpolicy-targettrackingmetricstat-stat)" : String,
  "[Unit](#cfn-applicationautoscaling-scalingpolicy-targettrackingmetricstat-unit)" : String
}
```

### YAML
<a name="aws-properties-applicationautoscaling-scalingpolicy-targettrackingmetricstat-syntax.yaml"></a>

```
  [Metric](#cfn-applicationautoscaling-scalingpolicy-targettrackingmetricstat-metric): 
    TargetTrackingMetric
  [Stat](#cfn-applicationautoscaling-scalingpolicy-targettrackingmetricstat-stat): String
  [Unit](#cfn-applicationautoscaling-scalingpolicy-targettrackingmetricstat-unit): String
```

## Properties
<a name="aws-properties-applicationautoscaling-scalingpolicy-targettrackingmetricstat-properties"></a>

`Metric`  <a name="cfn-applicationautoscaling-scalingpolicy-targettrackingmetricstat-metric"></a>
The CloudWatch metric to return, including the metric name, namespace, and dimensions. To get the exact metric name, namespace, and dimensions, inspect the [Metric](https://docs.aws.amazon.com/AmazonCloudWatch/latest/APIReference/API_Metric.html) object that is returned by a call to [ListMetrics](https://docs.aws.amazon.com/AmazonCloudWatch/latest/APIReference/API_ListMetrics.html).  
*Required*: No  
*Type*: [TargetTrackingMetric](aws-properties-applicationautoscaling-scalingpolicy-targettrackingmetric.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Stat`  <a name="cfn-applicationautoscaling-scalingpolicy-targettrackingmetricstat-stat"></a>
The statistic to return. It can include any CloudWatch statistic or extended statistic. For a list of valid values, see the table in [Statistics](https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/cloudwatch_concepts.html#Statistic) in the *Amazon CloudWatch User Guide*.  
The most commonly used metric for scaling is `Average`.  
*Required*: No  
*Type*: String  
*Pattern*: `[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Unit`  <a name="cfn-applicationautoscaling-scalingpolicy-targettrackingmetricstat-unit"></a>
The unit to use for the returned data points. For a complete list of the units that CloudWatch supports, see the [MetricDatum](https://docs.aws.amazon.com/AmazonCloudWatch/latest/APIReference/API_MetricDatum.html) data type in the *Amazon CloudWatch API Reference*.  
*Required*: No  
*Type*: String  
*Pattern*: `[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*`  
*Minimum*: `1`  
*Maximum*: `1023`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

# AWS::ApplicationAutoScaling::ScalingPolicy TargetTrackingScalingPolicyConfiguration
<a name="aws-properties-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration"></a>

`TargetTrackingScalingPolicyConfiguration` is a property of the [AWS::ApplicationAutoScaling::ScalingPolicy](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-applicationautoscaling-scalingpolicy.html) resource that specifies a target tracking scaling policy configuration for Application Auto Scaling. Use a target tracking scaling policy to adjust the capacity of the specified scalable target in response to actual workloads, so that resource utilization remains at or near the target utilization value. 

For more information, see [Target tracking scaling policies](https://docs.aws.amazon.com/autoscaling/application/userguide/application-auto-scaling-target-tracking.html) in the *Application Auto Scaling User Guide*.

## Syntax
<a name="aws-properties-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration-syntax.json"></a>

```
{
  "[CustomizedMetricSpecification](#cfn-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration-customizedmetricspecification)" : CustomizedMetricSpecification,
  "[DisableScaleIn](#cfn-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration-disablescalein)" : Boolean,
  "[PredefinedMetricSpecification](#cfn-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration-predefinedmetricspecification)" : PredefinedMetricSpecification,
  "[ScaleInCooldown](#cfn-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration-scaleincooldown)" : Integer,
  "[ScaleOutCooldown](#cfn-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration-scaleoutcooldown)" : Integer,
  "[TargetValue](#cfn-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration-targetvalue)" : Number
}
```

### YAML
<a name="aws-properties-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration-syntax.yaml"></a>

```
  [CustomizedMetricSpecification](#cfn-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration-customizedmetricspecification): 
    CustomizedMetricSpecification
  [DisableScaleIn](#cfn-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration-disablescalein): Boolean
  [PredefinedMetricSpecification](#cfn-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration-predefinedmetricspecification): 
    PredefinedMetricSpecification
  [ScaleInCooldown](#cfn-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration-scaleincooldown): Integer
  [ScaleOutCooldown](#cfn-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration-scaleoutcooldown): Integer
  [TargetValue](#cfn-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration-targetvalue): Number
```

## Properties
<a name="aws-properties-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration-properties"></a>

`CustomizedMetricSpecification`  <a name="cfn-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration-customizedmetricspecification"></a>
A customized metric. You can specify either a predefined metric or a customized metric.  
*Required*: No  
*Type*: [CustomizedMetricSpecification](aws-properties-applicationautoscaling-scalingpolicy-customizedmetricspecification.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`DisableScaleIn`  <a name="cfn-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration-disablescalein"></a>
Indicates whether scale in by the target tracking scaling policy is disabled. If the value is `true`, scale in is disabled and the target tracking scaling policy won't remove capacity from the scalable target. Otherwise, scale in is enabled and the target tracking scaling policy can remove capacity from the scalable target. The default value is `false`.  
*Required*: No  
*Type*: Boolean  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`PredefinedMetricSpecification`  <a name="cfn-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration-predefinedmetricspecification"></a>
A predefined metric. You can specify either a predefined metric or a customized metric.  
*Required*: No  
*Type*: [PredefinedMetricSpecification](aws-properties-applicationautoscaling-scalingpolicy-predefinedmetricspecification.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`ScaleInCooldown`  <a name="cfn-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration-scaleincooldown"></a>
The amount of time, in seconds, after a scale-in activity completes before another scale-in activity can start. For more information and for default values, see [Define cooldown periods](https://docs.aws.amazon.com/autoscaling/application/userguide/target-tracking-scaling-policy-overview.html#target-tracking-cooldown) in the *Application Auto Scaling User Guide*.  
*Required*: No  
*Type*: Integer  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`ScaleOutCooldown`  <a name="cfn-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration-scaleoutcooldown"></a>
The amount of time, in seconds, to wait for a previous scale-out activity to take effect. For more information and for default values, see [Define cooldown periods](https://docs.aws.amazon.com/autoscaling/application/userguide/target-tracking-scaling-policy-overview.html#target-tracking-cooldown) in the *Application Auto Scaling User Guide*.  
*Required*: No  
*Type*: Integer  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`TargetValue`  <a name="cfn-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration-targetvalue"></a>
The target value for the metric. Although this property accepts numbers of type Double, it won't accept values that are either too small or too large. Values must be in the range of -2^360 to 2^360. The value must be a valid number based on the choice of metric. For example, if the metric is CPU utilization, then the target value is a percent value that represents how much of the CPU can be used before scaling out.   
*Required*: Yes  
*Type*: Number  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

## See also
<a name="aws-properties-applicationautoscaling-scalingpolicy-targettrackingscalingpolicyconfiguration--seealso"></a>
+  [Configure Application Auto Scaling resources](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/quickref-application-auto-scaling.html) 
+ [Getting started](https://docs.aws.amazon.com/autoscaling/application/userguide/getting-started.html) in the *Application Auto Scaling User Guide*