How To Fix M_021 - Parsed hierarchy does not fit to segment numbering in material mapping

SAP Error Message - Details

• Message type: E = Error

• Message class: M_ - Messages for material field length extension mapping

• Message number: 021

• Message text: Parsed hierarchy does not fit to segment numbering in material mapping

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message M_021 - Parsed hierarchy does not fit to segment numbering in material mapping ?

  The SAP error message "M_021 Parsed hierarchy does not fit to segment numbering in material mapping" typically occurs in the context of material master data management, particularly when dealing with material mapping in SAP systems. This error indicates that there is a mismatch between the parsed hierarchy of materials and the expected segment numbering.
  Cause:
  
  Hierarchy Mismatch: The parsed hierarchy of materials does not align with the segment numbering defined in the mapping configuration. This can happen if the hierarchy structure has been altered or if there are inconsistencies in the data.
  Incorrect Mapping Configuration: The mapping configuration may not be set up correctly, leading to discrepancies between the expected and actual data structure.
  Data Corruption: There may be issues with the data itself, such as missing or incorrectly formatted entries that lead to parsing errors.
  Versioning Issues: If there are multiple versions of the material data or mapping configurations, it can lead to conflicts and mismatches.
  
  Solution:
  
  Check Hierarchy Structure: Review the hierarchy structure of the materials to ensure that it matches the expected format. Make sure that all segments are correctly defined and numbered.
  Review Mapping Configuration: Go through the mapping configuration settings in SAP to ensure that they are correctly set up. Verify that the segment numbering aligns with the parsed hierarchy.
  Data Validation: Validate the material data to check for any inconsistencies or errors. This may involve running data integrity checks or using SAP tools to identify and correct issues.
  Re-parse the Data: If the hierarchy has been modified, you may need to re-parse the data to ensure that the changes are reflected in the mapping.
  Consult Documentation: Refer to SAP documentation or support resources for specific guidance on resolving this error, as it may vary depending on the version of SAP you are using.
  Engage SAP Support: If the issue persists, consider reaching out to SAP support for assistance. They can provide more detailed insights based on your specific system configuration and data.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide patches and updates.
  Transaction Codes: Familiarize yourself with relevant transaction codes (e.g., MM01, MM02) for managing material master data.
  Data Migration Tools: If you are using data migration tools (like LSMW or SAP Data Services), ensure that the mapping and transformation rules are correctly defined.
  Testing: After making changes, conduct thorough testing to ensure that the error is resolved and that the material mapping functions as expected.
  
  By following these steps, you should be able to identify and resolve the cause of the "M_021 Parsed hierarchy does not fit to segment numbering in material mapping" error in SAP.