How To Fix WZRE_EXT_POST001 - Document category must be invoice or settlement

SAP Error Message - Details

• Message type: E = Error

• Message class: WZRE_EXT_POST -

• Message number: 001

• Message text: Document category must be invoice or settlement

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message WZRE_EXT_POST001 - Document category must be invoice or settlement ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WZRE_EXT_POST001: Document category must be invoice or settlement
  
  
  Cause:
  This error occurs during the posting of a document in SAP when the document category assigned to the transaction is neither an invoice nor a settlement. The system expects the document category to be one of these two types for the particular posting process or transaction type being executed.
  Common scenarios include:
  
  Attempting to post a document with an incorrect or missing document category.
  Custom or external interfaces (e.g., IDocs, BAPIs) passing an invalid document category.
  Configuration issues where the document category is not properly set or mapped.
  Posting a document in a process that strictly requires invoice or settlement document categories (e.g., in contract settlement, vendor invoice processing, or external service management).
  
  
  
  Solution:
  
  
  Check Document Category:
  
  Verify the document category being used in the posting.
  Ensure it is set to either Invoice (usually 'RE') or Settlement (usually 'AB') depending on