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# AWS::Lambda::Function DurableConfig
<a name="aws-properties-lambda-function-durableconfig"></a>

Configuration settings for [durable functions](https://docs.aws.amazon.com/lambda/latest/dg/durable-functions.html), including execution timeout and retention period for execution history.

## Syntax
<a name="aws-properties-lambda-function-durableconfig-syntax"></a>

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

### JSON
<a name="aws-properties-lambda-function-durableconfig-syntax.json"></a>

```
{
  "[ExecutionTimeout](#cfn-lambda-function-durableconfig-executiontimeout)" : Integer,
  "[RetentionPeriodInDays](#cfn-lambda-function-durableconfig-retentionperiodindays)" : Integer
}
```

### YAML
<a name="aws-properties-lambda-function-durableconfig-syntax.yaml"></a>

```
  [ExecutionTimeout](#cfn-lambda-function-durableconfig-executiontimeout): Integer
  [RetentionPeriodInDays](#cfn-lambda-function-durableconfig-retentionperiodindays): Integer
```

## Properties
<a name="aws-properties-lambda-function-durableconfig-properties"></a>

`ExecutionTimeout`  <a name="cfn-lambda-function-durableconfig-executiontimeout"></a>
The maximum time (in seconds) that a durable execution can run before timing out. This timeout applies to the entire durable execution, not individual function invocations.  
*Required*: Yes  
*Type*: Integer  
*Minimum*: `1`  
*Maximum*: `31622400`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`RetentionPeriodInDays`  <a name="cfn-lambda-function-durableconfig-retentionperiodindays"></a>
The number of days to retain execution history after a durable execution completes. After this period, execution history is no longer available through the GetDurableExecutionHistory API.  
*Required*: No  
*Type*: Integer  
*Minimum*: `1`  
*Maximum*: `90`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)