How To Fix CNV_DMC_MC_EXCEPTION022 - A field rule with this name already exists at subproject level

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_MC_EXCEPTION - Exception texts of Migration Object Modeller

• Message number: 022

• Message text: A field rule with this name already exists at subproject level

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_MC_EXCEPTION022 - A field rule with this name already exists at subproject level ?

  The SAP error message CNV_DMC_MC_EXCEPTION022 indicates that there is a conflict due to a field rule with the same name already existing at the subproject level in the Data Migration Cockpit (DMC) or during a data migration process. This typically occurs when you are trying to create or modify a field rule that has already been defined in the same context.
  Cause:
  
  Duplicate Field Rule: The most common cause is that a field rule with the same name has already been created in the subproject you are working on.
  Incorrect Configuration: There may be an issue with how the field rules are being configured or imported, leading to conflicts.
  Multiple Users: If multiple users are working on the same subproject, one user may have created a field rule that another user is trying to create again.
  
  Solution:
  
  
  Check Existing Field Rules: 
  
  Navigate to the subproject in the Data Migration Cockpit and review the existing field rules. Look for the field rule name that is causing the conflict.
  If you find the existing rule, you can either modify it or delete it if it is no longer needed.
  
  
  
  Rename the New Field Rule: 
  
  If the existing field rule is necessary, consider renaming the new field rule you are trying to create to avoid the conflict.
  
  
  
  Review User Access: 
  
  Ensure that users are aware of the existing field rules and coordinate changes to avoid conflicts.
  
  
  
  Consult Documentation: 
  
  Refer to the SAP documentation for Data Migration Cockpit for best practices on managing field rules and avoiding conflicts.
  
  
  
  Error Logs: 
  
  Check the error logs for more detailed information about the conflict, which may provide additional context for troubleshooting.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide guidance on managing field rules in the Data Migration Cockpit.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Training and Documentation: Ensure that team members are trained on the proper use of the Data Migration Cockpit and the management of field rules to prevent future conflicts.
  
  By following these steps, you should be able to resolve the error CNV_DMC_MC_EXCEPTION022 and continue with your data migration process.