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::Greengrass::SubscriptionDefinition SubscriptionDefinitionVersion
<a name="aws-properties-greengrass-subscriptiondefinition-subscriptiondefinitionversion"></a>

<a name="aws-properties-greengrass-subscriptiondefinition-subscriptiondefinitionversion-description"></a> A subscription definition version contains a list of [subscriptions](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-greengrass-subscriptiondefinition-subscription.html).

**Note**  
After you create a subscription definition version that contains the subscriptions you want to deploy, you must add it to your group version. For more information, see [https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-greengrass-group.html](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-greengrass-group.html).

<a name="aws-properties-greengrass-subscriptiondefinition-subscriptiondefinitionversion-inheritance"></a> In an CloudFormation template, `SubscriptionDefinitionVersion` is the property type of the `InitialVersion` property in the [https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-greengrass-subscriptiondefinition.html](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-greengrass-subscriptiondefinition.html) resource.

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

### JSON
<a name="aws-properties-greengrass-subscriptiondefinition-subscriptiondefinitionversion-syntax.json"></a>

```
{
  "[Subscriptions](#cfn-greengrass-subscriptiondefinition-subscriptiondefinitionversion-subscriptions)" : [ Subscription, ... ]
}
```

### YAML
<a name="aws-properties-greengrass-subscriptiondefinition-subscriptiondefinitionversion-syntax.yaml"></a>

```
  [Subscriptions](#cfn-greengrass-subscriptiondefinition-subscriptiondefinitionversion-subscriptions): 
    - Subscription
```

## Properties
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`Subscriptions`  <a name="cfn-greengrass-subscriptiondefinition-subscriptiondefinitionversion-subscriptions"></a>
The subscriptions in this version.  
*Required*: Yes  
*Type*: Array of [Subscription](aws-properties-greengrass-subscriptiondefinition-subscription.md)  
*Update requires*: [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)

## See also
<a name="aws-properties-greengrass-subscriptiondefinition-subscriptiondefinitionversion--seealso"></a>
+ [SubscriptionDefinitionVersion](https://docs.aws.amazon.com/greengrass/v1/apireference/definitions-subscriptiondefinitionversion.html) in the * AWS IoT Greengrass Version 1 API Reference *
+  [AWS IoT Greengrass Version 1 Developer Guide](https://docs.aws.amazon.com/greengrass/v1/developerguide/)