How To Fix CNV_20100057 - Secondary cost element &1 is merged with G/L account &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20100 - Messageclass for chart of account conversion

• Message number: 057

• Message text: Secondary cost element &1 is merged with G/L account &2

What causes this issue?

According to the mapping table, the secondary cost element
&V1& is to be merged with G/L account &V2& into
target account &V3&.

System Response

Secondary cost elements cannot be merged with G/L accounts.
Conversion cannot take place.

How to fix this error?

Change the mapping table accordingly.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20100057 - Secondary cost element &1 is merged with G/L account &2 ?

  The SAP error message CNV_20100057 indicates that there is a conflict between a secondary cost element and a G/L account during a data migration or conversion process. This typically occurs when the system detects that a secondary cost element (which is used for internal cost accounting) is being merged with a G/L account (which is used for external financial reporting).
  Cause:
  
  Data Migration Issues: This error often arises during data migration processes, particularly when using tools like the SAP S/4HANA Migration Cockpit or other conversion tools. It indicates that the secondary cost element you are trying to use has been merged with a G/L account, which is not allowed.
  Configuration Errors: There may be configuration issues in the controlling (CO) and financial accounting (FI) modules where the same identifier is being used for both a secondary cost element and a G/L account.
  Master Data Conflicts: The master data for cost elements and G/L accounts may not be properly aligned, leading to conflicts during the migration.
  
  Solution:
  
  Check Master Data: Review the master data for both the secondary cost element and the G/L account. Ensure that they are correctly defined and that there are no overlaps in their identifiers.
  Adjust Configuration: If the secondary cost element is indeed merged with a G/L account, you may need to adjust the configuration in the system to separate them. This may involve creating a new secondary cost element or modifying the existing G/L account.
  Data Migration Tool Settings: If you are using a data migration tool, check the settings and mappings to ensure that they are correctly configured to handle secondary cost elements and G/L accounts separately.
  Consult Documentation: Refer to SAP documentation or notes related to the specific migration or conversion process you are undertaking. There may be specific guidelines or best practices to follow.
  Engage SAP Support: If the issue persists, consider reaching out to SAP support for assistance. They can provide insights based on the specific version of SAP you are using and the context of the error.
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like OBY6 (for G/L account settings) and KA01 (for creating cost elements) to review and adjust the relevant settings.
  SAP Notes: Look for SAP Notes related to the error message CNV_20100057 for any patches or updates that may address the issue.
  Migration Cockpit: Familiarize yourself with the SAP S/4HANA Migration Cockpit if you are migrating to S/4HANA, as it has specific requirements and configurations for handling financial data.
  
  By following these steps, you should be able to resolve the error and ensure that your data migration or conversion process proceeds smoothly.