How To Fix CNV20201043 - __No. level: (before)=&1,(after)=&2

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20201 -

• Message number: 043

• Message text: __No. level: (before)=&1,(after)=&2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV20201043 - __No. level: (before)=&1,(after)=&2 ?

  The SAP error message CNV20201043, which states "No. level: (before)=&1,(after)=&2," is typically encountered during data migration processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates a mismatch in the number of levels of a hierarchical structure before and after the migration process.
  Cause:
  The error occurs when the data being migrated has a different hierarchical structure than what is expected by the target system. Specifically, it suggests that the number of levels in a certain hierarchy (like a cost center hierarchy, profit center hierarchy, or any other hierarchical data structure) does not match between the source and target systems. 
  For example:
  
  Before: The source system has a hierarchy with 3 levels.
  After: The target system expects a hierarchy with 2 levels.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Hierarchical Structures: Review the hierarchical structures in both the source and target systems. Ensure that they are aligned and that the number of levels matches.
  
  
  Adjust Data Mapping: If there are discrepancies, you may need to adjust the data mapping in your migration project. This could involve modifying the source data or changing the target structure to accommodate the source data.
  
  
  Data Preparation: Ensure that the data being migrated is properly prepared. This may involve cleaning up the data, ensuring that all necessary levels are included, and that there are no missing or extra levels.
  
  
  Consult Documentation: Refer to the SAP documentation related to the specific migration tool you are using. There may be specific guidelines or requirements for the hierarchical structures that need to be followed.
  
  
  Testing: After making adjustments, perform a test migration to verify that the error has been resolved and that the data is being migrated correctly.
  
  
  Seek Support: If the issue persists, consider reaching out to SAP support or consulting with an SAP expert who can provide more tailored assistance based on your specific scenario.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit, as it may contain specific instructions or troubleshooting steps related to hierarchical data migration.
  Community Forums: Engage with the SAP Community or other forums where SAP professionals discuss similar issues. You may find others who have encountered and resolved the same error.
  
  By following these steps, you should be able to identify the cause of the CNV20201043 error and implement a solution to successfully complete your data migration.