You can return tickets to the owner if the task is not sufficiently described, it is incorrectly addressed, or processing is permanently not possible for other reasons.

To reject a ticket, you must first accept it.

Then click the "Reject" menu item:

In the dialog that opens, briefly explain why the ticket cannot be processed:

The ticket

• then changes to the "rejected" state and is displayed as marked in the owner's initial list.
• It will disappear from your incoming list.
• The owner now has the option to
  • to edit it,
  • may need to be addressed differently
  • or delete.