Message SAP BORGR661 - Item &3: PO item &1 &2 of IDoc does not match existing PO item

Diagnosis In the IDoc, purchase order item &V1& &V2& is specified for item &V3&of inbound delivery &V4&. This purchase order item is not the purchaseorder item which already exists in the inbound delivery. System Response The inbound delivery cannot be changed. Procedure Change the purchase order reference in the IDoc. To do so, it is enoughto completely delete segment E1EDL41.