How To Fix MN512 - Purchasing document header & not found (internal error)

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 512

• Message text: Purchasing document header & not found (internal error)

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message MN512 - Purchasing document header & not found (internal error) ?

  The SAP error message MN512, which states "Purchasing document header & not found (internal error)," typically indicates that the system is unable to locate the specified purchasing document header in the database. This can occur due to various reasons, and understanding the cause is essential for finding a solution.
  Possible Causes:
  
  Document Deletion: The purchasing document may have been deleted or archived, making it unavailable for retrieval.
  Incorrect Document Number: The document number you are trying to access may be incorrect or mistyped.
  Authorization Issues: The user may not have the necessary authorizations to view the purchasing document.
  Database Issues: There may be issues with the database or inconsistencies in the data that prevent the document from being found.
  System Configuration: There could be configuration issues in the SAP system that affect how purchasing documents are managed or displayed.
  
  Solutions:
  
  Verify Document Number: Double-check the purchasing document number you are trying to access to ensure it is correct.
  Check Document Status: Use transaction codes like ME23N (Display Purchase Order) to see if the document exists and check its status.
  Authorization Check: Ensure that the user has the necessary permissions to access the purchasing document. This can be checked with the help of your SAP security team.
  Database Consistency Check: If you suspect a database issue, you may need to run consistency checks or consult with your SAP Basis team to investigate any underlying database problems.
  Review System Logs: Check the system logs (transaction code SLG1) for any related error messages that might provide more context about the issue.
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance. Provide them with the error message details and any relevant transaction codes.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as ME23N (Display Purchase Order), ME22N (Change Purchase Order), and ME21N (Create Purchase Order) for managing purchasing documents.
  SAP Notes: Search for SAP Notes related to error MN512 in the SAP Support Portal, as there may be specific patches or updates that address this issue.
  User Forums: Consider checking SAP community forums or user groups for similar issues and solutions shared by other users.
  
  By following these steps, you should be able to diagnose and resolve the MN512 error in SAP.