How To Fix CNV_20306_CHECK018 - No controlling area merge found

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20306_CHECK - Message Class for package CNV_20306_CHECK

• Message number: 018

• Message text: No controlling area merge found

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20306_CHECK018 - No controlling area merge found ?

  The SAP error message CNV_20306_CHECK018 indicates that there is no controlling area merge found during a data migration or conversion process, typically related to the SAP S/4HANA migration or other data transformation projects. This error is part of the SAP Conversion and Migration tools, particularly in the context of the SAP S/4HANA conversion process.
  Cause:
  The error usually arises due to one of the following reasons:
  
  Missing Configuration: The controlling area that is supposed to be merged or processed is not properly configured in the system.
  Inconsistent Data: There may be inconsistencies in the data related to controlling areas, such as missing entries or incorrect relationships between controlling areas and company codes.
  Incorrect Migration Settings: The settings or parameters defined for the migration process may not align with the existing controlling area configurations.
  
  Solution:
  To resolve the error, you can follow these steps:
  
  
  Check Controlling Area Configuration:
  
  Go to the SAP GUI and check the configuration of the controlling areas involved. Ensure that they are correctly set up and that there are no missing entries.
  Use transaction code OKKP to review the controlling area settings.
  
  
  
  Review Migration Settings:
  
  Verify the migration settings in the relevant migration cockpit or tools you are using. Ensure that the controlling areas are correctly specified and that the merge settings are appropriate.
  
  
  
  Data Consistency Check:
  
  Perform a data consistency check to identify any inconsistencies in the controlling area data. You can use transaction codes like SE16 or SE11 to check the relevant tables (e.g., CSKS for controlling area master data).
  
  
  
  Consult Migration Documentation:
  
  Refer to the official SAP documentation for the specific migration or conversion process you are undertaking. This documentation often provides detailed steps and considerations for handling controlling areas.
  
  
  
  SAP Notes and Support:
  
  Check for any relevant SAP Notes that may address this specific error. You can search the SAP Support Portal for notes related to CNV_20306_CHECK018.
  If the issue persists, consider reaching out to SAP Support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like OKKP (Controlling Area) and SE16 (Data Browser) for checking configurations and data.
  Migration Cockpit: If you are using the SAP S/4HANA Migration Cockpit, ensure that you are following the correct steps for data migration and that all prerequisites are met.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can provide insights or solutions.
  
  By following these steps, you should be able to identify the root cause of the error and implement the necessary corrections to resolve it.