How To Fix CNV_20400_CHECK003 - At least one controlling area uses a deviating chart of accounts

CNV_20400_CHECK003 - Overview

• Message type: E = Error

• Message class: CNV_20400_CHECK - Messages for check functions (controlling area merge)

• Message number: 003

• Message text: At least one controlling area uses a deviating chart of accounts

What causes this issue?

The involved controlling areas use different Chart of Accounts A
conversion of the Chart of Accounts must be done before the controlling
area merge.
You cannot run the transformation solution <ZK>Controlling Area Merge</>
because certain prerequisites have not been met. Please change your
mapping accordingly or contact SAP for support by creating a ticket
using component CA-LT-CNV.

System Response

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

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

CNV_20400_CHECK003 - Details

• The SAP error message CNV_20400_CHECK003 indicates that there is a discrepancy in the chart of accounts (CoA) used by at least one controlling area in your SAP system. This typically occurs during data migration or system conversion processes, such as when using the SAP S/4HANA Migration Cockpit or during a system upgrade.
  
  Cause:
  The error arises when:
  
  A controlling area is assigned a chart of accounts that differs from the one expected or required by the system.
  There are inconsistencies in the configuration of controlling areas and their associated charts of accounts.
  The system is trying to perform operations that require uniformity in the chart of accounts across controlling areas.
  
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Controlling Area Configuration:
  
  Go to the SAP transaction code OKKP (Controlling Area) and verify the configuration of the controlling areas.
  Ensure that the controlling area is assigned the correct chart of accounts.
  
  
  
  Review Chart of Accounts Assignment:
  
  Use transaction code OBY6