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# AWS::AutoScaling::AutoScalingGroup RetentionTriggers
<a name="aws-properties-autoscaling-autoscalinggroup-retentiontriggers"></a>

 Defines the specific triggers that cause instances to be retained in a Retained state rather than terminated. Each trigger corresponds to a different failure scenario during the instance lifecycle. This allows fine-grained control over when to preserve instances for manual intervention. 

## Syntax
<a name="aws-properties-autoscaling-autoscalinggroup-retentiontriggers-syntax"></a>

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

### JSON
<a name="aws-properties-autoscaling-autoscalinggroup-retentiontriggers-syntax.json"></a>

```
{
  "[TerminateHookAbandon](#cfn-autoscaling-autoscalinggroup-retentiontriggers-terminatehookabandon)" : String
}
```

### YAML
<a name="aws-properties-autoscaling-autoscalinggroup-retentiontriggers-syntax.yaml"></a>

```
  [TerminateHookAbandon](#cfn-autoscaling-autoscalinggroup-retentiontriggers-terminatehookabandon): String
```

## Properties
<a name="aws-properties-autoscaling-autoscalinggroup-retentiontriggers-properties"></a>

`TerminateHookAbandon`  <a name="cfn-autoscaling-autoscalinggroup-retentiontriggers-terminatehookabandon"></a>
 Specifies the action when a termination lifecycle hook is abandoned due to failure, timeout, or explicit abandonment (calling CompleteLifecycleAction).   
 Set to `retain` to move instances to a retained state. Set to `terminate` for default termination behavior.   
 Retained instances don't count toward desired capacity and remain until you call `TerminateInstanceInAutoScalingGroup`.   
*Required*: No  
*Type*: String  
*Allowed values*: `retain | terminate`  
*Update requires*: [No interruption](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)