A company starts using timesheet at the beginning of one month. Then some users accidentally create blank timesheets for weeks in the previous month.
There is no built-in method which lets admins select which months a user can or cannot access. Admins can stop the notifications by deleting (or submitting) but this only adds to their workload, particularly since it can happen multiple times. Additionally, users get annoying and inaccurate emails about these timesheets. Add a way to prevent these records from being created in the first place.