In a purchase order's confirmation control; you can have AB for PO acknowledgement and LA for Shipping notifications. They both appear as Shipping Notifications in the stock requirements screen. They also appear the same in the LOISTD stock requirement idoc. We have contacted SAP to see if there is an OSS note or a fix that we have missed and they stated the system is functioning as designed. A po acknowledgement only means the vendor has accepted the PO terms; it does not mean the goods have shipped. We use both processes so we need the PO acknowledgement to be presented with a different MRP element. Has anyone faced this situation? The table involved is V457T.