SAP Message VLBAPI051 - &1 in SENDER_METHOD field is not allowed

Diagnosis For the SENDER_METHOD field, only the values Blank (posting of agoods receipt) and GRPD (posting of a partial goods receipt) areallowed. If you enter a different value, the processing of the IDoc iscancelled. For more information, see the documentation for BAPI for Inbound DeliveryVerification from a Decentralized System. System Response The processing of the IDOC is cancelled. Procedure Enter a valid value in the SENDER_METHOD field.