User XXXX cannot be mentioned in Bug/Epic/Feature/Task/UserStory
Issue : Whenever you tag a particular person in the User Story or Bug or Epic or anyworkitem you may get an error as shown below stating that user ‘XXXXX’ cannot be mentioned in...
UnOfficial Guide - All about AzureDevOps
Issue : Whenever you tag a particular person in the User Story or Bug or Epic or anyworkitem you may get an error as shown below stating that user ‘XXXXX’ cannot be mentioned in...