As non-stock items are received, the system updates the on order quantity for the item in the Inventory Master file but it does not update the on hand quantity. The system also updates the last receipt date for the item and it moves the price from the purchase order into the average cost field of the item. The system does not try to allocate the non-stock items after the receiving process as these items are fully allocated during sales order and shop order entry. Receipts for nonstock items are not normally posted to the general ledger by the system. The one exception is the ASN Advanced Shipment Notification system which tracks nonstock items while they are in transit.