Resolution:
It is not possible to restrict submission of TimeSheet from users after a particular date on a periodical basis, but you can go ahead and apply the following workaround to resolve the issue:

  • Create a Timesheet disclaimer letting the users know that Timesheets that are not submitted before a particular date would be reviewed and approved automatically and editing of Timesheet is not possible after approval.

    • To create disclaimer: Go to Administration > Communications > Disclaimers > Select Timesheet as Disclaimer Type.
  • Ensure that Allow reopen of timesheet after approval is unchecked from the permission profile assigned to all the users who are not allowed to submit Timesheets after a particular date.

    • Go to Administration > Permissions > Select and edit the permission profile assigned to the user > Ensure Allow reopen of timesheet after approval is Unchecked under TimeSheet permissions.
  • Approve all the unsubmitted Timesheets for this period from Historical Timesheets.

    • Go to Administration > Historical Timesheets > Set Approval Status filter to Unsubmitted and select the correct Timesheet  Period. Approve the Timesheets. After the same users would not be able to submit or reopen the Timesheets after a specific date for a Timesheet period.