How To Fix CNV20600028 - No.CoCode &1 is renamed into &2, but &2 exists already: Implicit merge

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20600 - message class for package 20600

• Message number: 028

• Message text: No.CoCode &1 is renamed into &2, but &2 exists already: Implicit merge

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV20600028 - No.CoCode &1 is renamed into &2, but &2 exists already: Implicit merge ?

  The SAP error message CNV20600028 indicates that there is a conflict during a data migration or conversion process, specifically related to company codes (CoCodes). The message states that a company code identified as &1 is being renamed to &2, but the target company code &2 already exists in the system. This situation leads to an implicit merge conflict, as the system cannot automatically merge the two company codes without further instructions.
  Cause:
  
  Duplicate Company Codes: The primary cause of this error is that the target company code (&2) already exists in the system, which prevents the renaming of the source company code (&1) to the target name.
  Data Migration Process: This error typically occurs during data migration or conversion processes, such as during an SAP S/4HANA migration or when using tools like SAP Landscape Transformation (SLT) or SAP Data Services.
  
  Solution:
  To resolve this error, you can consider the following steps:
  
  
  Check Existing Company Codes: Verify the existing company codes in your SAP system to confirm that &2 is indeed present. You can do this by navigating to the relevant transaction (e.g., OX02 for company code configuration).
  
  
  Decide on a Strategy:
  
  Rename the Source Company Code: If possible, choose a different name for the source company code (&1) that does not conflict with existing company codes.
  Merge Data: If the data from &1 needs to be merged into &2, you may need to perform a manual data merge process. This involves consolidating the data from &1 into &2 and then deleting or archiving &1.
  Delete the Existing Company Code: If &2 is not needed, you may consider deleting it. However, this should be done with caution, ensuring that no critical data is lost.
  
  
  
  Adjust Migration Settings: If you are using a migration tool, check the settings or parameters to see if there are options to handle existing company codes, such as merging or skipping.
  
  
  Consult Documentation: Review the documentation for the specific migration tool or process you are using, as there may be specific guidelines or best practices for handling such conflicts.
  
  
  Testing: After making the necessary adjustments, perform a test migration to ensure that the changes resolve the conflict without introducing new issues.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or updates related to this error message.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have implemented.
  Backup Data: Always ensure that you have a backup of your data before making significant changes, especially during migration processes.
  
  By following these steps, you should be able to resolve the CNV20600028 error and successfully complete your data migration or conversion process.