An assignor can establish a time period that a referee can turn back an accepted assignment. The assignor can set an hour limit before a match is locked and the referee can no longer access the turn-back capability and would also be instructed to contact their assignor.
Navigate to Events and the Assigned Events by clicking Referees then Assigning. Click View Event
Enter the number of hours that the referee turn-back window closes. Click Save.
Note: Common practice is 72 hours (3 days).