How To Fix CNV_20100250 - Impl. merge of G/L acct &1 with sec. CostEl &2 due to merge in exist. CoA

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 250

• Message text: Impl. merge of G/L acct &1 with sec. CostEl &2 due to merge in exist. CoA

What causes this issue?

The system found that the G/L account &V1& will be converted into &V3&
(according to the mapping). However there is already a secondary cost
element called &V3&, which does not get converted into another value.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

In effect, this means that a G/L account and a secondary cost element
are going to be merged (implicit merge). This is not allowed.
The conversion cannot take place.

How to fix this error?

Change the mapping table accordingly.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20100250 - Impl. merge of G/L acct &1 with sec. CostEl &2 due to merge in exist. CoA ?

  The SAP error message CNV_20100250 typically occurs during the process of merging General Ledger (G/L) accounts with secondary cost elements in the context of a migration or conversion project, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that there is an attempt to merge a G/L account with a secondary cost element due to a merge in the existing Chart of Accounts (CoA).
  Cause:
  
  Merging of G/L Accounts: The error arises when there is a conflict in the mapping of G/L accounts and secondary cost elements during the migration process. This can happen if the system detects that the G/L account you are trying to merge has a corresponding secondary cost element that is also being merged or has been defined in a way that conflicts with the existing mappings.
  Chart of Accounts Configuration: The issue may also stem from the configuration of the Chart of Accounts, where the G/L accounts and cost elements are not aligned properly, leading to conflicts during the merge process.
  
  Solution:
  
  Review Mapping: Check the mapping of G/L accounts and secondary cost elements in your migration project. Ensure that there are no conflicts in the mappings and that each G/L account is correctly associated with its corresponding cost element.
  Adjust Merging Rules: If necessary, adjust the merging rules in the migration tool to ensure that the G/L accounts and cost elements are merged correctly without conflicts.
  Consult Documentation: Refer to the SAP documentation related to the migration process for specific guidelines on handling G/L accounts and cost elements. This may provide insights into best practices and common pitfalls.
  Test in a Sandbox Environment: Before applying changes in the production environment, test the merging process in a sandbox or development environment to identify and resolve any issues without impacting live data.
  Seek SAP Support: If the issue persists, consider reaching out to SAP support for assistance. They may provide specific patches or guidance based on the version of SAP you are using.
  
  Related Information:
  
  Migration Cockpit: Familiarize yourself with the SAP S/4HANA Migration Cockpit, as it provides tools and guidelines for migrating data, including G/L accounts and cost elements.
  SAP Notes: Check for relevant SAP Notes that may address this specific error or provide additional context and solutions.
  Training and Documentation: Ensure that your team is trained on the migration process and understands the implications of merging G/L accounts and cost elements.
  
  By following these steps, you should be able to resolve the error CNV_20100250 and successfully complete the merging process in your SAP environment.