How To Fix MN779 - Supplier billing document item not found (internal error)

SAP Error Message - Details

• Message type: E = Error

• Message class: MN - Message class for subsequent settlement (Purchasing)

• Message number: 779

• Message text: Supplier billing document item not found (internal error)

What causes this issue?

Largely identical to 215, 216, 778
When the system checked the supplier billing documents (settlement
documents) created via the general billing interface, it did not find a
supplier billing document item that should really exist.

System Response

The system recognizes that data is inconsisten, and does not perform the
function you require.

How to fix this error?

Contact your system administrator. This problem is probably due to a
program error.
The arrangement concerned is &V1&, the condition record concerned has
(internal) number &V2&.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MN779 - Supplier billing document item not found (internal error) ?

  The SAP error message MN779, which states "Supplier billing document item not found (internal error)," typically occurs in the context of invoice verification or when processing supplier invoices. This error indicates that the system is unable to locate the specific billing document item that is being referenced, which can be due to various reasons.
  Causes:
  
  Data Inconsistency: There may be inconsistencies in the database, such as missing or corrupted entries related to the billing document.
  Document Deletion: The billing document or its items may have been deleted or archived, making them unavailable for processing.
  Incorrect Document Number: The document number being referenced may be incorrect or not exist in the system.
  Authorization Issues: The user may not have the necessary authorizations to access the billing document.
  System Bugs: There could be a bug or issue in the SAP system that is causing the error.
  
  Solutions:
  
  Check Document Existence: Verify that the billing document number exists in the system. You can do this by using transaction codes like MIRO (Invoice Verification) or MRBR (Release Blocked Invoices) to search for the document.
  Review Document Status: Ensure that the document has not been deleted or archived. If it has been archived, you may need to retrieve it from the archive.
  Correct Document Number: Double-check the document number you are entering to ensure it is correct.
  Check Authorizations: Ensure that the user has the necessary authorizations to access the billing document. You may need to consult with your SAP security team.
  Database Consistency Check: Run a database consistency check to identify and resolve any inconsistencies. This may require the assistance of your SAP Basis team.
  SAP Notes: Check for any relevant SAP Notes or patches that may address this specific error. You can search the SAP Support Portal for updates or fixes related to this error message.
  Contact SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MIRO, MRBR, and MB03 (Display Material Document) for troubleshooting.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Documentation: Review SAP documentation related to invoice verification and billing document processing for additional insights.
  
  By following these steps, you should be able to diagnose and resolve the MN779 error in SAP.