Basically we have PO confirmation process and we send the 850 IDoc to vendor and they send back the order acknowledgement AB and shipping notification LA with IDoc. This is working fine for single time delivery of any purchase item.
However the same we have issues as old acknowledgment (I.e LA) recorded is replaced by the data of the current acknowledgement when several partial acknowledgment received for PO. So all previous item information (like inbound delivery no) with LA is disappearing Basically we have control key as 0001. Would like to know the reasons for this issue and please help me