How To Fix CNV20600018 - Company code &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: 018

• Message text: Company code &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 CNV20600018 - Company code &1 is renamed into &2, but &2 exists already: Implicit merge ?

  The SAP error message CNV20600018 indicates that during a data migration or conversion process, a company code is being renamed from one identifier to another, but the target company code already exists in the system. This situation leads to an implicit merge conflict because the system cannot automatically resolve which company code to keep.
  Cause:
  
  Renaming Conflict: The company code you are trying to rename (let's call it &1) is being renamed to another company code (&2), but &2 already exists in the system.
  Data Migration: This error often occurs during data migration processes, such as when using SAP's Landscape Transformation (SLT) or other data conversion tools.
  Duplicate Company Codes: The existence of duplicate company codes can arise from previous migrations, manual entries, or system configurations.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing Company Codes: Verify the existing company codes in your SAP system to confirm that &2 already exists. You can do this by navigating to the transaction code OBY6 (for company code settings) or using relevant reports.
  
  
  Decide on the Merge Strategy:
  
  Merge Data: If the data for &1 needs to be merged into &2, you will need to define a strategy for how to combine the data from both company codes. This may involve data cleansing and ensuring that financial records are accurately consolidated.
  Rename to a Different Code: If merging is not appropriate, consider renaming &1 to a different, unique company code that does not conflict with existing codes.
  
  
  
  Adjust Migration Settings: If you are using a migration tool, check the settings or parameters to ensure that it is configured to handle existing company codes appropriately. You may need to adjust the mapping or transformation rules.
  
  
  Consult Documentation: Review SAP documentation or notes related to the specific migration tool you are using. There may be specific guidelines or best practices for handling such conflicts.
  
  
  Test in a Sandbox: Before applying changes in the production environment, test the resolution in a sandbox or development environment to ensure that the changes do not lead to further issues.
  
  
  Seek Support: If you are unsure how to proceed, consider reaching out to SAP support or consulting with an SAP expert who has experience with data migrations and company code configurations.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as OBY6 (for company code settings) and OBY1 (for creating company codes).
  SAP Notes: Look for SAP Notes related to data migration and company code management for additional insights and solutions.
  Data Migration Tools: Understand the capabilities and limitations of the data migration tools you are using, such as SAP S/4HANA Migration Cockpit or SAP Landscape Transformation.
  
  By following these steps, you should be able to resolve the CNV20600018 error and successfully manage the company code renaming process.