How To Fix CNV_DMC_SIN399 - Production version &1 already exists. Material is &2, Plant is &3

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_SIN - Messages for s-innovations migration

• Message number: 399

• Message text: Production version &1 already exists. Material is &2, Plant is &3

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_SIN399 - Production version &1 already exists. Material is &2, Plant is &3 ?

  The SAP error message CNV_DMC_SIN399 indicates that there is an attempt to create or modify a production version for a material in a specific plant, but a production version with the same identifier already exists. This error typically arises during data migration or conversion processes, particularly when using the SAP Data Migration Cockpit or similar tools.
  Cause:
  
  Duplicate Production Version: The primary cause of this error is that the production version you are trying to create already exists for the specified material and plant combination.
  Data Migration Issues: If you are migrating data from another system or performing a mass upload, there may be duplicate entries in the source data.
  Incorrect Mapping: The mapping of production versions during the migration process may not be set up correctly, leading to attempts to create existing versions.
  
  Solution:
  
  
  Check Existing Production Versions:
  
  Use transaction code C202 (or navigate to the relevant area in the SAP GUI) to check the existing production versions for the specified material and plant.
  Verify if the production version you are trying to create is indeed already present.
  
  
  
  Modify or Delete Existing Version:
  
  If the existing production version is not needed, you can delete it or modify it as required.
  If the existing version is needed, consider updating it instead of creating a new one.
  
  
  
  Adjust Data Migration Files:
  
  If you are using a data migration tool, review the source data files to ensure there are no duplicates.
  Clean up the data to remove any duplicate entries before re-running the migration.
  
  
  
  Consult Documentation:
  
  Review the SAP documentation related to production versions and data migration to ensure compliance with best practices.
  
  
  
  Error Handling in Migration:
  
  Implement error handling in your migration scripts or processes to catch such issues early and log them for review.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as C202 (for production versions) and MM03 (to view material master data).
  SAP Notes: Check for any SAP Notes related to the CNV_DMC_SIN399 error for additional guidance or patches that may address known issues.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to resolve the CNV_DMC_SIN399 error and successfully manage production versions in your SAP system.