# DescribeStackSetOperation
<a name="API_DescribeStackSetOperation"></a>

Returns the description of the specified StackSet operation.

**Note**  
This API provides *strongly consistent* reads meaning it will always return the most up-to-date data.

## Request Parameters
<a name="API_DescribeStackSetOperation_RequestParameters"></a>

 For information about the parameters that are common to all actions, see [Common Parameters](CommonParameters.md).

 ** CallAs **   
[Service-managed permissions] Specifies whether you are acting as an account administrator in the organization's management account or as a delegated administrator in a member account.  
By default, `SELF` is specified. Use `SELF` for StackSets with self-managed permissions.  
+ If you are signed in to the management account, specify `SELF`.
+ If you are signed in to a delegated administrator account, specify `DELEGATED_ADMIN`.

  Your AWS account must be registered as a delegated administrator in the management account. For more information, see [Register a delegated administrator](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/stacksets-orgs-delegated-admin.html) in the * AWS CloudFormation User Guide*.
Type: String  
Valid Values: `SELF | DELEGATED_ADMIN`   
Required: No

 ** OperationId **   
The unique ID of the StackSet operation.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 128.  
Pattern: `[a-zA-Z0-9][-a-zA-Z0-9]*`   
Required: Yes

 ** StackSetName **   
The name or the unique stack ID of the StackSet for the stack operation.  
Type: String  
Required: Yes

## Response Elements
<a name="API_DescribeStackSetOperation_ResponseElements"></a>

The following element is returned by the service.

 ** StackSetOperation **   
The specified StackSet operation.  
Type: [StackSetOperation](API_StackSetOperation.md) object

## Errors
<a name="API_DescribeStackSetOperation_Errors"></a>

For information about the errors that are common to all actions, see [Common Error Types](CommonErrors.md).

 ** OperationNotFound **   
The specified ID refers to an operation that doesn't exist.  
HTTP Status Code: 404

 ** StackSetNotFound **   
The specified StackSet doesn't exist.  
HTTP Status Code: 404

## Examples
<a name="API_DescribeStackSetOperation_Examples"></a>

### Describing an Update StackSet Operation
<a name="API_DescribeStackSetOperation_Example_1"></a>

The following example returns information about a successful update of a StackSet and its associated stack instances.

#### Sample Request
<a name="API_DescribeStackSetOperation_Example_1_Request"></a>

```
https://cloudformation.us-east-1.amazonaws.com/
 ?Action=DescribeStackSetOperation
 &Version=2010-05-15
 &StackSetName=stack-set-example
 &OperationId=61806005-bde9-46f1-949d-6791example
 &X-Amz-Algorithm=AWS4-HMAC-SHA256
 &X-Amz-Credential=[Access key ID and scope]
 &X-Amz-Date=20170810T233349Z
 &X-Amz-SignedHeaders=content-type;host
 &X-Amz-Signature=[Signature]
```

#### Sample Response
<a name="API_DescribeStackSetOperation_Example_1_Response"></a>

```
<DescribeStackSetOperationResponse xmlns="http://internal.amazon.com/coral/com.amazonaws.maestro.service.v20160713/">
  <DescribeStackSetOperationResult>
    <StackSetOperation>
      <StackSetId>stack-set-example:c14cd6d1-cd17-40bd-82ed-ff97example</StackSetId>
      <CreationTimestamp>2017-08-04T18:01:29.508Z</CreationTimestamp>
      <OperationId>ddf16f54-ad62-4d9b-b0ab-3ed8e9example</OperationId>
      <Action>UPDATE</Action>
      <OperationPreferences>
        <FailureToleranceCount>0</FailureToleranceCount>
        <MaxConcurrentCount>1</MaxConcurrentCount>
        <RegionOrder/>
      </OperationPreferences>
      <EndTimestamp>2017-08-04T18:03:43.672Z</EndTimestamp>
      <Status>SUCCEEDED</Status>
    </StackSetOperation>
  </DescribeStackSetOperationResult>
  <ResponseMetadata>
    <RequestId>20133b62-7e1a-11e7-838a-a182example</RequestId>
  </ResponseMetadata>
</DescribeStackSetOperationResponse>
```

### Describing a Drift Detection StackSet Operation
<a name="API_DescribeStackSetOperation_Example_2"></a>

The following example returns information about a drift detection operation run on a StackSet.

#### Sample Request
<a name="API_DescribeStackSetOperation_Example_2_Request"></a>

```
https://cloudformation.us-east-1.amazonaws.com/
 ?Action=DescribeStackSetOperation
 &Version=2010-05-15
 &StackSetName=stack-set-drift-example
 &OperationId=9cc082fa-df4c-45cd-b9a8-7e5example
 &X-Amz-Algorithm=AWS4-HMAC-SHA256
 &X-Amz-Credential=[Access key ID and scope]
 &X-Amz-Date=20191203T201942Z
 &X-Amz-SignedHeaders=content-type;host
 &X-Amz-Signature=[Signature]
```

#### Sample Response
<a name="API_DescribeStackSetOperation_Example_2_Response"></a>

```
<DescribeStackSetOperationResponse xmlns="http://internal.amazon.com/coral/com.amazonaws.maestro.service.v20160713/">
  <DescribeStackSetOperationResult>
    <StackSetOperation>
      <ExecutionRoleName>AWSCloudFormationStackSetExecutionRole</ExecutionRoleName>
      <AdministrationRoleARN>arn:aws:iam::012345678910:role/AWSCloudFormationStackSetAdministrationRole</AdministrationRoleARN>
      <StackSetId>stack-set-drift-example:bd1f4017-d4f9-432e-a73f-8c22eb708dd5</StackSetId>
      <OperationPreferences>
        <RegionOrder/>
      </OperationPreferences>
      <StackSetDriftDetectionDetails>
        <InSyncStackInstancesCount>2</InSyncStackInstancesCount>
        <FailedStackInstancesCount>0</FailedStackInstancesCount>
        <DriftStatus>DRIFTED</DriftStatus>
        <TotalStackInstancesCount>7</TotalStackInstancesCount>
        <DriftedStackInstancesCount>1</DriftedStackInstancesCount>
        <InProgressStackInstancesCount>4</InProgressStackInstancesCount>
        <LastDriftCheckTimestamp>2019-12-04T20:34:28.543Z</LastDriftCheckTimestamp>
      </StackSetDriftDetectionDetails>
      <CreationTimestamp>2019-12-04T20:33:13.673Z</CreationTimestamp>
      <OperationId>9cc082fa-df4c-45cd-b9a8-7e5example</OperationId>
      <Action>DETECT_DRIFT</Action>
      <Status>RUNNING</Status>
    </StackSetOperation>
  </DescribeStackSetOperationResult>
  <ResponseMetadata>
    <RequestId>e81844dc-6121-4b59-923a-e2417example</RequestId>
  </ResponseMetadata>
</DescribeStackSetOperationResponse>
```

## See Also
<a name="API_DescribeStackSetOperation_SeeAlso"></a>

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS Command Line Interface V2](https://docs.aws.amazon.com/goto/cli2/cloudformation-2010-05-15/DescribeStackSetOperation) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/cloudformation-2010-05-15/DescribeStackSetOperation) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/cloudformation-2010-05-15/DescribeStackSetOperation) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/cloudformation-2010-05-15/DescribeStackSetOperation) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/cloudformation-2010-05-15/DescribeStackSetOperation) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/cloudformation-2010-05-15/DescribeStackSetOperation) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/cloudformation-2010-05-15/DescribeStackSetOperation) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/cloudformation-2010-05-15/DescribeStackSetOperation) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/cloudformation-2010-05-15/DescribeStackSetOperation) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/cloudformation-2010-05-15/DescribeStackSetOperation)