Amazon CodeCatalyst is no longer open to new customers. Existing customers can continue to use the service as normal. For more information, see [How to migrate from CodeCatalyst](migration.md).

# 'Deploy CloudFormation stack' variables
<a name="deploy-action-cfn-variables"></a>

The **Deploy CloudFormation stack** action produces and sets the following variables at run time. These are known as *predefined variables*.

For information about referencing these variables in a workflow, see [Using predefined variables](workflows-using-predefined-variables.md).


| Key | Value | 
| --- | --- | 
| deployment-platform | The name of the deployment platform.<br />Hardcoded to `AWS:CloudFormation`. | 
| region | The region code of the AWS Region that was deployed to during the workflow run.<br />Example: `us-west-2` | 
| stack-id | The Amazon Resource Name (ARN) of the deployed stack.<br />Example: `arn:aws:cloudformation:us-west-2:111122223333:stack/codecatalyst-cfn-stack/6aad4380-100a-11ec-a10a-03b8a84d40df` |