• The "Period Lock" module restricts specific journals, by locking transactions within a specified date range. An unlock option is available to reverse the lock when needed. This ensures users are prevented from posting journals after the defined period.

• Go to the "Period Lock" menu.

• In order to create or edit Period Lock avail below permission.

• Enter details in 'Period Lock' form view and lock it.

• 'Unlock' button is available to revert the lock when required.

• Now, creating invoice between 'To Date' and 'From Date' of locked record in Period Lock will not be allowed

• Hence it generates an alert for that.

• Let's create new record of Period Lock to understand constrains.

• It triggers an alert if the "From Date" and "To Date" are set incorrectly.

• There should not be any previous record which overlaps date range of current active record.

• That will trigger the following alert.

• There should not be any pervious record with the same journal and range of date.

• The following alert will get triggered in that case.