How To Fix CNV_20400_CHECK042 - Reference CO area &1 needs to be assigned to operating concern &2

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 042

• Message text: Reference CO area &1 needs to be assigned to operating concern &2

What causes this issue?

The reference controlling area is not assigned to any operating concern
but some source controlling areas are. You must adjest your Customizing
settings. The reference controlling area must be assigned to the same
operating concern &V2& as the source controlling area.
You cannot run the transformation solution Controlling Area Merge
because certain prerequisites have not been met. We recommend that you
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.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20400_CHECK042 - Reference CO area &1 needs to be assigned to operating concern &2 ?

  The SAP error message CNV_20400_CHECK042 indicates that a controlling area (CO area) is not properly assigned to an operating concern in the context of SAP's Controlling (CO) module. This error typically arises during data migration or when performing certain operations that require a valid assignment between the controlling area and the operating concern.
  Cause:
  The error occurs when:
  
  The controlling area specified in the operation does not have a corresponding assignment to the operating concern.
  The configuration settings in the SAP system are incomplete or incorrect, leading to a mismatch between the controlling area and the operating concern.
  
  Solution:
  To resolve this error, you need to ensure that the controlling area is correctly assigned to the operating concern. Here are the steps to do this:
  
  
  Access the Configuration:
  
  Go to the SAP Easy Access screen.
  Navigate to the following path: SPRO -> SAP Reference IMG -> Controlling -> Cost Element Accounting -> Master Data -> Cost Elements -> Assign Controlling Area to Operating Concern.
  
  
  
  Check Assignments:
  
  In the configuration screen, check if the controlling area (CO area) in question is assigned to the correct operating concern.
  If it is not assigned, you will need to create the assignment.
  
  
  
  Create Assignment:
  
  If the assignment does not exist, you can create it by selecting the appropriate controlling area and operating concern, and then saving the changes.
  
  
  
  Verify Settings:
  
  After making the assignment, verify that all related settings are correct and that there are no other configuration issues that might lead to similar errors.
  
  
  
  Test the Changes:
  
  After making the necessary changes, re-run the process that triggered the error to ensure that the issue has been resolved.
  
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like OKKP (for controlling area settings) and OKO7 (for operating concern settings) to access relevant configuration screens.
  Documentation: Refer to SAP Help documentation for detailed information on controlling area and operating concern configurations.
  Support: If the issue persists after following the above steps, consider reaching out to your SAP Basis or functional consultant for further assistance.
  
  By ensuring that the controlling area is properly assigned to the operating concern, you should be able to resolve the CNV_20400_CHECK042 error and continue with your operations.