How To Fix CNV_20100026 - Line &1 changes accounts, while most likely scenario &2 must not do so

CNV_20100026 - Overview

• Message type: E = Error

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

• Message number: 026

• Message text: Line &1 changes accounts, while most likely scenario &2 must not do so

Changing accounts means that you change account numbers (for example
from 110000 to 120000), and maybe also merge two or more accounts.
The data entered in line &V1& leads to a change of accounts.
However in the most likely scenario &V2& it is <ZH>not allowed</> to
change accounts.

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

System Response

The possible basic scenarios were checked, but none of them fits.

How to fix this error?

Find out if you really want to change accounts, and if the <ZK>Copy Rows
</> indicator is set correctly.
If the <ZK>Copy Rows</> indicator is set, the master data of old CoA X
is copied to Y when CoA X is converted into Y (and, if necessary,
accounts are merged or renamed), while old CoA X will still exist
without any changes after the conversion.

Error message extract from SAP system. Copyright SAP SE.

CNV_20100026 - Details

• The SAP error message CNV_20100026 typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that there is a discrepancy in the data being processed, specifically related to account changes that are not allowed in the current context.
  
  Cause:
  The error message "Line &1 changes accounts, while most likely scenario &2 must not do so" suggests that:
  
  The data line being processed (indicated by &1) is attempting to change account assignments in a way that is not permitted for the specified scenario (indicated by &2).
  This could happen if the migration scenario is set up to expect certain accounts to remain unchanged, but the data being imported or converted is attempting to modify those accounts.
  
  
  Solution:
  To resolve this error, consider the following steps:
  
  
  Review the Migration Scenario: Check the configuration of the migration scenario you are using. Ensure that it is set up correctly