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# AWS::ARCRegionSwitch::Plan LambdaEventSourceMappingUngraceful
<a name="aws-properties-arcregionswitch-plan-lambdaeventsourcemappingungraceful"></a>

Specifies whether to skip enabling or disabling an event source mapping during an ungraceful execution.

## Syntax
<a name="aws-properties-arcregionswitch-plan-lambdaeventsourcemappingungraceful-syntax"></a>

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

### JSON
<a name="aws-properties-arcregionswitch-plan-lambdaeventsourcemappingungraceful-syntax.json"></a>

```
{
  "[Behavior](#cfn-arcregionswitch-plan-lambdaeventsourcemappingungraceful-behavior)" : {{String}}
}
```

### YAML
<a name="aws-properties-arcregionswitch-plan-lambdaeventsourcemappingungraceful-syntax.yaml"></a>

```
  [Behavior](#cfn-arcregionswitch-plan-lambdaeventsourcemappingungraceful-behavior): {{String}}
```

## Properties
<a name="aws-properties-arcregionswitch-plan-lambdaeventsourcemappingungraceful-properties"></a>

`Behavior`  <a name="cfn-arcregionswitch-plan-lambdaeventsourcemappingungraceful-behavior"></a>
Set to `skip` to skip executing this event source mapping step during an ungraceful execution.  
*Required*: No  
*Type*: String  
*Allowed values*: `skip`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)