How To Fix WZRE_PRX502 - Invoice request &1 already exists

WZRE_PRX502 - Overview

• Message type: E = Error

• Message class: WZRE_PRX - SOA messages from proxy implementations

• Message number: 502

• Message text: Invoice request &1 already exists

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message WZRE_PRX502 - Invoice request &1 already exists ?

  The SAP error message:
  WZRE_PRX502 Invoice request &1 already exists
  typically occurs in the context of invoice processing, particularly when dealing with invoice requests in SAP's logistics or financial modules (such as MM - Materials Management or FI - Financial Accounting).
  
  Cause
  This error means that an invoice request with the identifier &1 (where &1 is replaced by the actual invoice request number) already exists in the system. The system is trying to create or post an invoice request that duplicates an existing one, which is not allowed.
  Common causes include:
  
  Attempting to create a duplicate invoice request for the same invoice or delivery.
  A previous invoice request was already created and not yet cleared or processed.
  Data inconsistencies or duplicate entries due to manual intervention or system errors.
  Integration issues where the same invoice data is sent multiple times from an external system.
  
  
  Solution
  To resolve this error, consider the following steps:
  
  
  Check Existing Invoice Requests:
  
  Use transaction codes like MRBR, MIRO,