How To Fix CNVA_20400_CHECK063 - A mix of explicit and implicit merges into a primary cost element

SAP Error Message - Details

• Message type: E = Error

• Message class: CNVA_20400_CHECK - Messages for contorlling areas checks

• Message number: 063

• Message text: A mix of explicit and implicit merges into a primary cost element

A mix of explicit and implicit merges into a primary cost element was
detected. This happens when cost elements will be merged, but the
mapping only contains a part of the source cost elements. The
transformation solution Controlling Area Merge does not support primary
cost elements. To change primary cost elements, a chart of accounts
conversion is required.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNVA_20400_CHECK063 - A mix of explicit and implicit merges into a primary cost element ?

  The SAP error message CNVA_20400_CHECK063 indicates that there is a mix of explicit and implicit merges into a primary cost element during the migration or data transformation process. This typically occurs in the context of SAP S/4HANA migrations or when using the SAP Migration Cockpit.
  Cause:
  
  Explicit Merges: These are merges that are defined by the user, where specific cost elements are combined based on user-defined criteria.
  Implicit Merges: These are automatic merges that SAP performs based on predefined rules or settings in the system.
  The error arises when both types of merges are attempted on the same primary cost element, which leads to ambiguity in how the data should be processed.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Review the Migration Data: Check the data that you are trying to migrate. Look for any cost elements that are being merged both explicitly and implicitly.
  
  
  Adjust Merge Settings: 
  
  If you have defined explicit merges, consider removing or adjusting them to avoid conflicts with implicit merges.
  Alternatively, if implicit merges are not needed, you can disable them if possible.
  
  
  
  Data Cleansing: Ensure that the data being migrated does not have conflicting definitions for the same cost elements. This may involve cleaning up the data in the source system before migration.
  
  
  Consult Documentation: Refer to the SAP documentation for the Migration Cockpit or the specific migration tool you are using. There may be guidelines on how to handle merges effectively.
  
  
  Testing: After making adjustments, run a test migration to ensure that the error does not occur again.
  
  
  Seek Support: If the issue persists, consider reaching out to SAP support or consulting with an SAP expert who can provide more tailored assistance based on your specific scenario.
  
  
  Related Information:
  
  Migration Cockpit: This is a tool provided by SAP for migrating data to S/4HANA. Understanding how it handles data merges can be crucial.
  Cost Element Accounting: Familiarize yourself with how cost elements are defined and used in your SAP system, as this will help in understanding the implications of merging them.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
  
  By following these steps, you should be able to resolve the CNVA_20400_CHECK063 error and successfully complete your migration process.