Have an approval chain for inventory items received to verify PO Units to Receive, PO Received Unit Cost, PO Received Total Cost agrees with Stock Received Units, Stock Received Unit Cost and Stock Total Cost and that the Stock Units per PO Unit Received are correct so there are no large quantities received in the hundreds, or thousands that are not correct and result in large cost to district by having to account for large amount of dollars not in inventory and/or having to write off.