How To Fix WZRE_PRX_MAPPING057 - ActionCode '02' (Change): Neither InvoiceID nor BillFromID are maintained

SAP Error Message - Details

• Message type: E = Error

• Message class: WZRE_PRX_MAPPING - Messages for Proxy Mappings

• Message number: 057

• Message text: ActionCode '02' (Change): Neither InvoiceID nor BillFromID are maintained

Self-Explanatory Message

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• What is the cause and solution for SAP error message WZRE_PRX_MAPPING057 - ActionCode '02' (Change): Neither InvoiceID nor BillFromID are maintained ?

  The SAP error message:
  WZRE_PRX_MAPPING057 ActionCode '02' (Change): Neither InvoiceID nor BillFromID are maintained
  
  
  Cause:
  This error occurs during the processing of a proxy message (often related to invoice or billing document processing) when the system expects either an InvoiceID or a BillFromID to be provided for an action code '02' (which typically means "Change" or "Modify"). 
  
  The message indicates that neither the InvoiceID nor the BillFromID fields are filled in the incoming data.
  These fields are mandatory identifiers for the system to locate the existing invoice or billing document to be changed.
  Without these IDs, the system cannot determine which document to update, hence the error.
  
  
  Explanation of Terms:
  
  ActionCode '02' (Change): This action code signals that the incoming message intends to modify an existing document.
  InvoiceID: Unique identifier of the invoice document.
  BillFromID: Identifier of the billing party or the source of the invoice.
  
  
  
  Solution:
  
  
  Check the Incoming Data:
  
  Verify the proxy or IDoc data that triggers this error.
  Ensure that