How To Fix CNVA_COA020 - In the mapping for Old CoA &1 no New CoA is specified

SAP Error Message - Details

• Message type: E = Error

• Message class: CNVA_COA -

• Message number: 020

• Message text: In the mapping for Old CoA &1 no New CoA is specified

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNVA_COA020 - In the mapping for Old CoA &1 no New CoA is specified ?

  The SAP error message CNVA_COA020 indicates that during the mapping process for the Chart of Accounts (CoA) conversion, there is a missing specification for the new Chart of Accounts corresponding to an old Chart of Accounts entry. This typically occurs during the migration or conversion process when transitioning from one CoA to another, often in the context of an SAP S/4HANA migration or system upgrade.
  Cause:
  The error arises when:
  
  The mapping table for the old and new Chart of Accounts is incomplete.
  An entry exists in the old CoA that does not have a corresponding entry in the new CoA.
  There may be a configuration issue or oversight during the setup of the mapping.
  
  Solution:
  To resolve the CNVA_COA020 error, follow these steps:
  
  
  Check Mapping Configuration:
  
  Go to the transaction code OBY6 (or the relevant transaction for CoA mapping).
  Review the mapping entries for the old and new CoA. Ensure that every old CoA account has a corresponding new CoA account.
  
  
  
  Add Missing Mappings:
  
  If you find any old CoA entries without a corresponding new CoA, you need to create the necessary mappings.
  Ensure that the new CoA accounts are correctly defined and that they match the structure and requirements of the new system.
  
  
  
  Validate CoA Structure:
  
  Ensure that the new CoA is properly defined in the system and that it adheres to the required structure (e.g., account groups, account types).
  
  
  
  Run the Mapping Program:
  
  After making the necessary adjustments, run the mapping program again to check if the error persists.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or guides related to Chart of Accounts conversion for any specific requirements or additional steps that may be necessary.
  
  
  
  Testing:
  
  After making changes, conduct thorough testing to ensure that the mapping works as expected and that there are no further errors.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  OBY6: Chart of Accounts mapping.
  OBD2: Define Chart of Accounts.
  
  
  
  SAP Notes:
  
  Check for any relevant SAP Notes that may address known issues or provide additional guidance on CoA mapping.
  
  
  
  SAP Community:
  
  Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  
  
  Backup:
  
  Always ensure that you have a backup of your configuration before making changes, especially in a production environment.
  
  
  
  By following these steps, you should be able to resolve the CNVA_COA020 error and successfully complete the Chart of Accounts mapping process.