SAP Message CB517 - Order item for material & is not unique

Diagnosis
With the selected process message, a goods receipt for an order isreported to the warehouse (destination &V2&). However, the messagecannot be uniquely assigned to an order item as

  • in the corresponding order, more than one order item exists for the
  • material contained in the message (co-product manufacture),
    • the message contains neither a phase nor an operation number
    • System Response
      The goods receipt is posted to the first item which is found for thematerial.