How To Fix CNV20200641 - CJTRANS Names are not unique after merge. Call 'Specify Mapping Values'

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20200 - Messages for development class CNV_20200

• Message number: 641

• Message text: CJTRANS Names are not unique after merge. Call 'Specify Mapping Values'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV20200641 - CJTRANS Names are not unique after merge. Call 'Specify Mapping Values' ?

  The SAP error message CNV20200641 with the description "CJTRANS Names are not unique after merge. Call 'Specify Mapping Values'" typically occurs during a data migration or conversion process, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that there are duplicate entries in the mapping of project-related data (like WBS elements or network activities) after a merge operation.
  Cause:
  
  
  Duplicate Names: The error arises when the system detects that there are multiple entries with the same name or identifier in the data being processed. This can happen if:
  
  Two or more projects or WBS elements have the same name.
  The merging process combines data from different sources that have overlapping identifiers.
  
  
  
  Mapping Conflicts: During the mapping phase, if the same name is assigned to different entities, the system cannot determine which one to use, leading to ambiguity.
  
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify Duplicates:
  
  Review the data that is being merged to identify any duplicate names or identifiers. This can often be done by exporting the data to a spreadsheet and using functions to find duplicates.
  
  
  
  Specify Mapping Values:
  
  The error message suggests calling 'Specify Mapping Values'. This typically means you need to manually define how the duplicates should be handled. You can do this by:
  
  Assigning unique identifiers to the duplicates.
  Merging or renaming entries to ensure that each entry has a unique name.
  
  
  
  
  
  Adjust Mapping Configuration:
  
  In the migration tool, go to the mapping configuration section and adjust the mappings to ensure that each entry is unique. This may involve creating new mappings or modifying existing ones.
  
  
  
  Re-run the Migration:
  
  After resolving the duplicates and adjusting the mappings, re-run the migration process to see if the error persists.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes or documentation that may provide additional context or solutions for this specific error.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit, as it may contain specific guidelines on handling mapping issues.
  Testing: Always perform testing in a development or sandbox environment before applying changes to production systems to avoid data integrity issues.
  
  By following these steps, you should be able to resolve the CNV20200641 error and successfully complete your data migration or conversion process.