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).

# AWS::AppConfig::Extension Action
<a name="aws-properties-appconfig-extension-action"></a>

The actions defined in the extension.

## Syntax
<a name="aws-properties-appconfig-extension-action-syntax"></a>

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

### JSON
<a name="aws-properties-appconfig-extension-action-syntax.json"></a>

```
{
  "[Description](#cfn-appconfig-extension-action-description)" : String,
  "[Name](#cfn-appconfig-extension-action-name)" : String,
  "[RoleArn](#cfn-appconfig-extension-action-rolearn)" : String,
  "[Uri](#cfn-appconfig-extension-action-uri)" : String
}
```

### YAML
<a name="aws-properties-appconfig-extension-action-syntax.yaml"></a>

```
  [Description](#cfn-appconfig-extension-action-description): String
  [Name](#cfn-appconfig-extension-action-name): String
  [RoleArn](#cfn-appconfig-extension-action-rolearn): String
  [Uri](#cfn-appconfig-extension-action-uri): String
```

## Properties
<a name="aws-properties-appconfig-extension-action-properties"></a>

`Description`  <a name="cfn-appconfig-extension-action-description"></a>
Information about actions defined in the extension.  
*Required*: No  
*Type*: String  
*Minimum*: `0`  
*Maximum*: `1024`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Name`  <a name="cfn-appconfig-extension-action-name"></a>
The extension name.  
*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)

`RoleArn`  <a name="cfn-appconfig-extension-action-rolearn"></a>
An Amazon Resource Name (ARN) for an AWS Identity and Access Management assume role.  
*Required*: No  
*Type*: String  
*Minimum*: `20`  
*Maximum*: `2048`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Uri`  <a name="cfn-appconfig-extension-action-uri"></a>
The extension URI associated to the action point in the extension definition. The URI can be an Amazon Resource Name (ARN) for one of the following: an AWS Lambda function, an Amazon Simple Queue Service queue, an Amazon Simple Notification Service topic, or the Amazon EventBridge default event bus.  
*Required*: Yes  
*Type*: String  
*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)