How To Fix CNV_20100264 - Implicit merge of secondary CostEl &1 with G/L acct &2 due to CoA change

CNV_20100264 - Overview

• Message type: E = Error

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

• Message number: 264

• 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& in connection with the chart of accounts change. However there is
already a G/L account &V2&, which is also converted into &V3&.

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.

CNV_20100264 - Details

• The SAP error message CNV_20100264 indicates that there is an implicit merge 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 data migration or when changes are made to the CoA structure in the SAP system.
  
  Cause:
  
  Chart of Accounts Change: The error arises when there is a change in the Chart of Accounts that affects the mapping of cost elements to G/L accounts. This can happen during a system upgrade, data migration, or when the CoA is modified.
  Cost Element Configuration: The secondary cost elements may not be properly mapped to the new G/L accounts, leading to conflicts or overlaps in the accounting entries.
  Data Migration Issues: If you are migrating data from one system to another, inconsistencies in the cost element and G/L account mapping can trigger this error.
  
  
  Solution:
  
  Review CoA Changes: Check the changes made to the