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

SAP Error Message - Details

• 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.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20400_CHECK012 - All involved controlling areas using same booking periods ?

  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 in transaction code OB29 (for fiscal year variant) and OKKP (for controlling area settings).
  
  
  
  Align Booking Periods:
  
  Ensure that the booking periods for all controlling areas are aligned. This can be checked in the same configuration areas mentioned above.
  If necessary, adjust the booking periods to ensure they are consistent across all controlling areas.
  
  
  
  Review Migration Settings:
  
  If you are using a migration tool, review the settings and mappings to ensure that they are correctly configured to handle the controlling areas involved.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific migration or conversion process you are undertaking. There may be additional guidelines or prerequisites that need to be followed.
  
  
  
  Testing:
  
  After making the necessary adjustments, perform a test run of the migration or conversion process to ensure that the error has been resolved.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  OB29: Maintain Fiscal Year Variants
  OKKP: Maintain Controlling Area
  
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or updates related to this error.
  SAP Community: Engage with the SAP Community forums for discussions and solutions shared by other users who may have encountered similar issues.
  
  By ensuring that all controlling areas involved in the process are configured consistently, you should be able to resolve the CNV_20400_CHECK012 error and proceed with your data migration or conversion successfully.