Unassigning a work queue task from a user
Users with the queue_admin or queue_manager role can unassign a work queue task from a user.
To unassign a work queue task from a user:
In the Classic view’s left pane, click Work Queue Monitoring.
Navigate to the active work queue, and click it’s name.
Select the checkbox for one or more tasks that have already been assigned to users.
Select Tools>Work Queue Management>Unassign.