Notifications using @mentions in CA Agile Central do not work for some users

Document ID : KB000091932
Last Modified Date : 19/04/2018
Show Technical Document Details
The notification options "@mentions" does not appear in the Detail page of the User Story.   The user has Editor permissions and has notifications turned on.  He can receive them, but cannot create a notification since the @mentions option is not there. 
@mentions are only available on Quick Detail Pages (QDP's). So if you are using the old editor (EDP), on the Detail page of a User Story, on the right side of the page, you will see the icon for QDP.   If you click on the icon it will open up the page in QDP.  

select QDP

Click the @ button in the rich text editor of the Description, Notes, and Discussion fields to send an instant email notification to the user you mentioned. The @ button is available on user stories, portfolio items, defects, and tasks.  

User-added image

Additional Information:
Additional Information about @mentions can be found in the Agile Central Help article:

keywords: ability to mention, can't mention, no mention, @