How To Fix WRPC_XI_PROXY016 - Use either CustomerPartyInternalID or StoreInternalID, not both

WRPC_XI_PROXY016 - Overview

• Message type: E = Error

• Message class: WRPC_XI_PROXY -

• Message number: 016

• Message text: Use either CustomerPartyInternalID or StoreInternalID, not both

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WRPC_XI_PROXY016 - Use either CustomerPartyInternalID or StoreInternalID, not both ?

  The SAP error message:
  WRPC_XI_PROXY016: Use either CustomerPartyInternalID or StoreInternalID, not both
  
  
  Cause:
  This error occurs when an IDoc or proxy message related to a business partner or customer contains both the fields CustomerPartyInternalID and StoreInternalID filled simultaneously, whereas the interface or mapping logic expects only one of these identifiers to be used at a time.
  In other words, the message structure or the integration scenario requires that either the CustomerPartyInternalID or the StoreInternalID be provided, but not both together. Providing both leads to ambiguity in identifying the party/store and causes the error.
  This is common in SAP PI/PO or SAP CPI scenarios where the message validation or mapping enforces this rule, or in SAP ERP when processing inbound proxy or IDoc messages.
  
  
  Solution:
  
  
  Check the source system or middleware that generates the message:
  
  Ensure that only one of the two fields (CustomerPartyInternalID or StoreInternalID) is populated.
  If both are being sent, adjust the logic or mapping to send