How To Fix CNV_20100261 - Implicit merge of secondary CostEl &1 with G/L acct &2 due to CoA change

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 261

• Message text: Implicit merge of secondary CostEl &1 with G/L acct &2 due to CoA change

What causes this issue?

The system found that the secondary cost element &V1& is converted into
&V3& (according to the mapping). However there is already a G/L account
&V2&, which is also converted into &V3& in connection with the
chart of accounts change.

System Response

In effect, this means that a secondary cost element (&V1&)
and a G/L account (&V2&) are going to be merged (implicit
merge). This is not allowed.
The conversion cannot take place.

How to fix this error?

The mapping table must be adjusted accordingly.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20100261 - Implicit merge of secondary CostEl &1 with G/L acct &2 due to CoA change ?

  The SAP error message CNV_20100261 indicates an issue related to the implicit merging of secondary cost elements with a General Ledger (G/L) account due to a change in the Chart of Accounts (CoA). This typically occurs during a migration or conversion process, such as when you are transitioning from one CoA to another or when you are performing data migration activities.
  Cause:
  
  Chart of Accounts Change: The error arises when there is a change in the Chart of Accounts, and the system attempts to merge secondary cost elements with G/L accounts that are no longer valid or have been altered.
  Data Inconsistency: There may be inconsistencies in the mapping of cost elements to G/L accounts, especially if the mapping was not updated to reflect the new CoA.
  Configuration Issues: The configuration settings for cost elements and G/L accounts may not align with the new CoA structure.
  
  Solution:
  
  Review CoA Mapping: Check the mapping of secondary cost elements to G/L accounts. Ensure that all mappings are correctly defined according to the new Chart of Accounts.
  Adjust Cost Element Configuration: If necessary, adjust the configuration of the cost elements to ensure they are correctly aligned with the new G/L accounts.
  Data Migration Tools: If you are using data migration tools (like SAP S/4HANA Migration Cockpit), ensure that the migration settings are correctly configured to handle the CoA changes.
  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 steps to follow.
  Testing: Conduct thorough testing in a development or sandbox environment to ensure that the changes do not lead to further issues before applying them in the production environment.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or solutions for this specific error message.
  Transaction Codes: Familiarize yourself with transaction codes related to cost element and G/L account configuration, such as:
  
  OBY6: Define Chart of Accounts
  KA01: Create Primary Cost Element
  KA06: Create Secondary Cost Element
  
  
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Consulting Services: If the issue persists and is critical, consider reaching out to SAP consulting services for expert assistance.
  
  By following these steps, you should be able to address the CNV_20100261 error and ensure a smooth transition during your CoA change process.