There would be no reliance on someone having to print an inventory report the second all jobs have been closed for valuation; picks have been made and receipts and shipments recorded. Late entries for the month would have no effect on the balance gathered from a point in time. Third shift activity could be recorded live for the subsequent month without hurting the inventory value. Simply reverse all stock transactions after a point in time from the current balances to come up with a true balance for the date. No holding back recording transactions because prior month activity has not all been recorded. Days after the month is ended, inventory balances can be calculated.