How To Fix M8255 - Document & has been posted

SAP Error Message - Details

• Message type: E = Error

• Message class: M8 - Invoice Verification/Valuation

• Message number: 255

• Message text: Document & has been posted

What causes this issue?

You have entered the number of a document which has already been posted.
You cannot access this document for a second time.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Please check what you have entered and make any necessary changes. If
you want to look at the document, exit Park and choose the function
<LS>Further processing -> Display</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message M8255 - Document & has been posted ?

  The SAP error message M8255 typically indicates that a document has already been posted in the system, and therefore, the action you are trying to perform (such as posting a new document or making changes) cannot be completed. This error is common in various SAP modules, particularly in Materials Management (MM) and Financial Accounting (FI).
  Cause:
  
  Duplicate Posting: The document you are trying to post or modify has already been posted in the system.
  Document Status: The document may be in a status that does not allow further changes or postings.
  Transaction Lock: The document might be locked by another user or process, preventing any modifications.
  Incorrect Document Number: You may be trying to post a document with an incorrect or non-existent document number.
  
  Solution:
  
  Check Document Status: Verify the status of the document in question. You can do this by using transaction codes like MB03 (Display Material Document) or FB03 (Display Document) to see if the document is indeed posted.
  Review Document Number: Ensure that you are using the correct document number. Double-check for any typographical errors.
  Consult with Users: If the document is locked, check with other users to see if they are currently working on it or if it is being processed by a background job.
  Use Transaction Codes: Use appropriate transaction codes to view the document and its details. For example:
  
  MB03 for material documents
  FB03 for financial documents
  
  
  Reversal or Adjustment: If you need to make changes to a posted document, consider reversing the document (if applicable) and then reposting it with the necessary adjustments.
  Check Authorization: Ensure that you have the necessary authorizations to perform the action you are attempting.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific patches or updates related to this error message. SAP frequently releases notes that address known issues.
  Documentation: Refer to SAP Help documentation for detailed information on document posting and handling errors.
  Support: If the issue persists, consider reaching out to your SAP support team or consulting with SAP support for further assistance.
  
  By following these steps, you should be able to identify the cause of the M8255 error and take appropriate action to resolve it.