How To Fix CNV_20400_CHECK012 - All involved controlling areas using same booking periods

CNV_20400_CHECK012 - Overview

• Message type: E = Error

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

• Message number: 012

• Message text: All involved controlling areas using same booking periods

What causes this issue?

All Fiscal Year Variants use the same Booking Periods this year. Please
notice that the converted System will look as if the Controlling Areas
have never been separate. You will not be able to create your old
Balances after the Controlling Area Conversion.

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_CHECK012 - Details

• The SAP error message CNV_20400_CHECK012 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 an inconsistency in the configuration of controlling areas, specifically that all involved controlling areas must use the same fiscal year variant and booking periods.
  
  Cause:
  The error arises when:
  
  Different Fiscal Year Variants: The controlling areas involved in the migration or conversion process are configured with different fiscal year variants.
  Inconsistent Booking Periods: The booking periods (the periods in which financial transactions can be posted) for the controlling areas do not match, leading to conflicts during data processing.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Fiscal Year Variants:
  
  Go to the SAP GUI and navigate to the controlling area configuration.
  Verify that all controlling areas involved in the process are using the same fiscal year variant. You can do this by checking the configuration