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).

# Using mentions in a comment
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You can mention space members, other projects in the space, related issues, and code in comments. Doing so creates a quick link to the user or resource you mention.

**To @mention in a comment**

1. Navigate to your project.

1. In the navigation bar choose **Issues**.

1. Choose the issue that you want to edit to view the issue details. For help on finding your issue, see [Finding and viewing issues](issues-view.md).

1. Choose the **Add a comment** textbox.

1. Type `@user_name` to mention another user.

1. Type `@project_name` to mention a project.

1. Type `@issue_name` or `@issue_number` to mention another issue.

1. Type `@file_name` to mention specific files or code in a source repository.
**Note**  
A list of the top 5 items (users, source repositories, projects, etc) containing the terms that match your `@mention` will populate as you type.

1. Choose the desired item you would like to mention. The pathway showing where the item is located will populate in the comment textbox.

1. Finish your comment and choose **Send**.