# The `awsApplication` tag
<a name="ar-user-tags"></a>

The `awsApplication` tag is a tag that AppRegistry vends when you create an AppRegistry application. This tag marks resources as belonging to an application. This tag consists of a key-value pair, where the key is `awsApplication` and value is the Amazon Resource Name (ARN) of an application. 

**To help you manage and monitor your applications, AWS highly recommends you ensure all of your application resources are tagged with the `awsApplication` tag**. Review [Tutorial: Existing AppRegistry application resources and the `awsApplication` tag](https://docs.aws.amazon.com/servicecatalog/latest/arguide/existing-customer-usecases.html) for instructions.

The `awsApplication` tag provides additional features and capabilities for your applications and resources, including: 
+ [Access to application monitoring and management](https://docs.aws.amazon.com/awsconsolehelpdocs/latest/gsg/aws-myApplications.html#myApp-benefits) in myApplications dashboard in the AWS Management Console
+ Viewing details about your application's costs, security findings, alarms, metrics and usage 
+ Filtering by application in integrated AWS services, such as AWS Cost Explorer and AWS Security Hub CSPM 

For AppRegistry applications created before November 8th, 2023, AppRegistry creates the `awsApplication` tag after you perform your first resource association. You can then apply the `awsApplication` tag to any other resources you want to add to the application. For AppRegistry applications created after November 8th, 2023, AppRegistry creates the `awsApplication` tag when you create the application. 

As of September 18th, 2024 for **existing** AppRegistry users, the following behaviors apply: 
+ For existing AppRegistry applications which include resources without the `awsApplication` tag applied, AWS does not retroactively apply the tag. 
+ For existing AppRegistry applications, if you use the `AssociateResource` AppRegistry API, AWS does not automatically apply the tag unless you define the `options` parameter value as `APPLY_APPLICATION_TAG`. 
+ For existing AppRegistry applications, if you use the AppRegistry console to add a new resource to the application, AWS automatically applies the `awsApplication` tag to that new resource. 
+ For new applications created in the AppRegistry console, AWS automatically applies the `awsApplication` tag to all resources added to the application. 
+ For new applications created with myApplications in the AWS Management Console, AWS automatically applies the `awsApplication` tag to all resources added to the application.