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Cannot @ mention certain users with short names


I've got an odd one that I haven't been able to figure out. We currently serve users in China and the US and there are a few users that cannot be @mentioned in any project. Permissions are correct in terms of "Browse Users" and project/issue access.

These users can be mentioned via markdown (e.g. [] ), but no matter how we try, we can't use @. This appears to be because their names are short and duplicated (Yan Yan and Liu Liu)

Is this a known issue? Is there anything I can to make them @mentionable?

Edit - These same users are @mentionable in Confluence, but there appears to be no way to get them in Jira.





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Hi @Matthew Knatz  -- Welcome to the Atlassian Community!

I found this existing defect report that seems to match what you describe.  Please take a look to confirm, and if so mark that it also impacts your team.

If this doesn't match, I suggest asking your instance admin to submit a support ticket to Atlassian:


Best regards,


@Bill Sheboy That seems to match my issue exactly! Apparently the Google Fu is weak with me at the moment. I'll add my voice to chorus. And since I'm the admin, maybe I'll also submit a support ticket. I just wanted to make sure I wasn't missing anything obvious.


Like Bill Sheboy likes this

@Matthew Knatz 

How exactly do you to it with


it's like [~Jack Smith]?

@George  - You just use the user's username (do I get extra points for alliteration?).

If my Jira username is mkn, you'd mention me via [~mkn] If you're using email addresses or UPNs as usernames you'd use [].

I should add that in our Data Center instance Jira accepts the markdown format in both visual and text render views.

@Matthew Knatz 

Hi Matthew, sorry for my late response.

You should get extra points for that certainly :-)

Many thanks for the elaboration. Unfortunately, it doesn't work on the Atlassian Cloud :-(

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