How To Fix NSDM_MIG_CONTROL121 - -- Verification MKPF/MSEG --

SAP Error Message - Details

• Message type: E = Error

• Message class: NSDM_MIG_CONTROL - Log message for migration

• Message number: 121

• Message text: -- Verification MKPF/MSEG --

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message NSDM_MIG_CONTROL121 - -- Verification MKPF/MSEG -- ?

  The SAP error message NSDM_MIG_CONTROL121, which relates to the verification of MKPF (Document Header for Material Documents) and MSEG (Document Segment: Material Document), typically occurs during data migration or when performing certain operations that involve material documents. This error indicates that there is an inconsistency or issue with the data in these tables.
  Cause:
  
  Data Inconsistency: The most common cause of this error is a mismatch between the entries in the MKPF and MSEG tables. For example, there may be entries in MSEG that do not have a corresponding entry in MKPF.
  Missing Document Header: If a material document segment (MSEG) is present without a corresponding document header (MKPF), this will trigger the error.
  Incorrect Migration Data: If you are migrating data from another system or an older version of SAP, the data may not have been migrated correctly, leading to inconsistencies.
  Data Corruption: In rare cases, data corruption in the database can lead to this error.
  
  Solution:
  
  Check Data Consistency: Use SQL queries or SAP transaction codes (like SE16 or SE11) to check for inconsistencies between MKPF and MSEG. Ensure that every entry in MSEG has a corresponding entry in MKPF.
  
  Example SQL query to find orphaned MSEG entries:
  SELECT * FROM MSEG WHERE MANDT = 'YourClient' AND MBLNR NOT IN (SELECT MBLNR FROM MKPF WHERE MANDT = 'YourClient');
  
  
  
  Correct Migration Issues: If the error occurred during data migration, review the migration process and ensure that all necessary data is included and correctly formatted.
  Data Repair: If inconsistencies are found, you may need to manually correct the data or use SAP tools to repair the inconsistencies.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide guidance on resolving it.
  Use Transaction Codes: Utilize transaction codes like MB1A, MB1B, or MB1C to create or adjust material documents as needed, ensuring that the entries in MKPF and MSEG are consistent.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes related to material documents, such as MB03 (Display Material Document), MB02 (Change Material Document), and MB1A (Goods Withdrawal).
  SAP Documentation: Review SAP documentation for detailed information on the MKPF and MSEG tables, including their fields and relationships.
  SAP Community: Engage with the SAP Community or forums for additional insights and solutions from other users who may have encountered similar issues.
  
  If the problem persists after following these steps, it may be beneficial to consult with your SAP Basis or technical team for further investigation and resolution.