How To Fix CNV_21521001 - Mapping not maintained for renaming employee group

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_21521 - Employee Group Rename

• Message number: 001

• Message text: Mapping not maintained for renaming employee group

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_21521001 - Mapping not maintained for renaming employee group ?

  The SAP error message CNV_21521001 indicates that there is a mapping issue related to the renaming of an employee group during a data migration or conversion process. This error typically arises in the context of SAP's data migration tools, such as the SAP S/4HANA Migration Cockpit or other conversion tools.
  Cause:
  The error occurs when the system attempts to rename an employee group, but there is no corresponding mapping defined in the configuration. This can happen due to:
  
  Missing Mapping Entries: The mapping table that defines how old employee groups should be renamed to new ones is incomplete or not maintained.
  Incorrect Configuration: The configuration settings for the migration process may not have been set up correctly, leading to missing or incorrect mappings.
  Data Inconsistencies: There may be inconsistencies in the data being migrated, such as references to employee groups that do not exist in the target system.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Mapping Configuration:
  
  Go to the relevant transaction or configuration area where the mapping for employee groups is maintained (e.g., transaction code LTMC for Migration Cockpit).
  Ensure that all necessary mappings for renaming employee groups are defined correctly.
  
  
  
  Maintain Missing Mappings:
  
  If you identify that certain employee groups are missing from the mapping, add the necessary entries to ensure that each old employee group has a corresponding new employee group.
  
  
  
  Review Migration Settings:
  
  Double-check the settings and parameters used in the migration process to ensure they align with the expected configurations.
  
  
  
  Data Validation:
  
  Validate the data being migrated to ensure that it does not reference any employee groups that are not defined in the mapping.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific migration tool you are using for any additional guidance or troubleshooting steps.
  
  
  
  Testing:
  
  After making the necessary changes, perform a test migration to verify that the error has been resolved.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or fixes related to this error.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit or the specific tool you are using for detailed instructions on mapping and data migration.
  Community Forums: Consider searching or posting in SAP community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify and resolve the cause of the CNV_21521001 error message.