Tags allow you to group issues the way you like, irrelevant of their attributes. For example, you can create a tag fix it today and associate it with issues from different projects, subsystems etc.
You can associate any issue with unlimited number of tags.
To associate a tag with an issue or a set of issues
Do one of the following:
Highlight an issue.
To select several issues from the list of issues, press Space at each highlighted issue.
Choose the name of a tag that you no longer want to associate with selected issues.
Click Submit or press Ctrl+Enter.
To view issues associated with a certain tag
In the search box, enter tag: and press Space.
Select a tag from the completion list that YouTrack provides.
Optionally, enter any other search criteria to refine your search. For example, to display unresolved critical issues marked with tag fix before end of month, enter
or
Click Submit or press Ctrl+Enter.
To configure untagging issues as soon as they are resolved
You can set up a tag the way that any issue that it is associated with will be automatically untagged as soon as it is marked as resolved.
In the Tags pane, click the edit icon to the right of a tag.
In the Edit tag dialog box, select Untag on resolve.
Click Save.
To configure tag visibility
You can restrict visibility of a tag to a specific group of YouTrack users.
In the Tags pane, click the edit icon to the right of a tag.
Do one or both of the following:
To let other users search by the tag, select a user group in the Visible for Group drop-down list.
To let other users associate issues with the tag, select a user group in the Updatable by Group drop-down list.
Click Save.
To rename a tag
In the Tags pane, click the edit icon to the right of a tag.
In the Edit tag dialog box, type a new name in the Name text box.
Click Save.
To delete a tag
In the Tags pane, click the edit icon to the right of a tag.