How to reject a timesheet?
This only works if Time Tracking is not integrated with Service Billing because once the timesheet is sent over to the Service Billing module, they cannot be unapproved again.
The "Reject" is used before a timesheet is approved. When it is in the submitted status, then you can approve or reject. If you don't have Service Billing and is simply trying to reject this once approved time sheet, you can do the following: