Note: This version of Teamwork Desk is no longer supported.
Check out our help docs for the new version of Teamwork Desk here.
Within Teamwork Desk, you can completed a task directly from the ticket if the issue has been resolved.
To do this, when you are viewing the task from within the Task tab on a ticket, click the grey arrow next to the task title to mark it as complete.
A line will then appear through the task title to notify it is complete.
For more information see: Creating a Projects task within Desk