Message SAP W_MD053 - Final recipient of delivery &1 is different from purchase order

Diagnosis
You are using an external Warehouse Management System (WMS). Thedelivery with the delivery note number &V1& is assigned the finalrecipient &V2& (with the role 'UC'). However, the corresponding purchaseorder is assigned the final recipient &V3& . This is not permitted ifyou are using the external WMS in conjunction with cross-docking andprepacking.

System Response
This item is not seen as relevant for cross-docking with prepacking.