How To Fix CNV_DMC_MC_EXCEPTION027 - Name &1 already exists

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 027

• Message text: Name &1 already exists

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_MC_EXCEPTION027 - Name &1 already exists ?

  The SAP error message CNV_DMC_MC_EXCEPTION027 with the description "Name &1 already exists" typically occurs during data migration or conversion processes, particularly when using the SAP Data Migration Cockpit (DMC) or similar tools. This error indicates that there is an attempt to create an object (like a migration object, mapping, or similar) with a name that already exists in the system.
  Cause:
  
  Duplicate Names: The most common cause is that the name you are trying to use for a new object (like a migration object or mapping) is already in use by another object in the system.
  Previous Migration Attempts: If there were previous migration attempts that were not fully cleaned up, they might leave behind objects with the same name.
  Configuration Issues: There might be issues in the configuration or setup of the migration project that lead to naming conflicts.
  
  Solution:
  
  
  Check Existing Objects: 
  
  Use transaction codes like SE80 or SE11 to check for existing objects with the same name. You can search for the name indicated in the error message to see if it already exists.
  
  
  
  Rename or Delete:
  
  If you find that the object already exists and is not needed, you can delete it or rename it to resolve the conflict.
  If the object is required, consider using a different name for the new object you are trying to create.
  
  
  
  Review Migration Settings:
  
  Review the settings and configurations in your migration project to ensure that there are no conflicts in naming conventions or object definitions.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation or notes related to the Data Migration Cockpit for any specific guidelines or best practices regarding naming conventions.
  
  
  
  Error Logs:
  
  Check the error logs for more detailed information about the context in which the error occurred. This can provide insights into what specific action triggered the error.
  
  
  
  SAP Support:
  
  If the issue persists and you cannot resolve it, consider reaching out to SAP Support for assistance. They may provide additional insights or patches if this is a known issue.
  
  
  
  Related Information:
  
  SAP Notes: Look for relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  Migration Cockpit Documentation: Review the official SAP documentation for the Data Migration Cockpit for best practices and guidelines.
  Community Forums: Check SAP Community forums or other user groups where similar issues may have been discussed.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.