How To Fix CNV_DMC_VM001 - A view with ident &1 already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_VM - S/4 Migration: Texts for View Management

• Message number: 001

• Message text: A view with ident &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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_VM001 - A view with ident &1 already exists ?

  The SAP error message CNV_DMC_VM001 indicates that there is an attempt to create a view in the database that already exists. This error typically occurs during data migration or conversion processes, particularly when using the SAP Data Migration Cockpit or similar tools.
  Cause:
  The error is caused by the following scenarios:
  
  Duplicate View Creation: The system is trying to create a database view with an identifier (name) that already exists in the database.
  Previous Migration Attempts: If a previous migration or data load process was interrupted or failed, it might have left behind some database objects, including views.
  Configuration Issues: Incorrect configuration or settings in the migration tool may lead to attempts to create views that are already present.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Existing Views:
  
  Use transaction code SE11 (Data Dictionary) or SE14 (Database Utility) to check if the view with the specified identifier already exists.
  If it does exist and is not needed, you can drop the view using the appropriate SQL command or through the database utility.
  
  
  
  Clean Up Previous Migration Artifacts:
  
  If the migration process was interrupted, ensure that all temporary or intermediate objects created during the process are cleaned up.
  This may involve dropping any views, tables, or other objects that were created during the failed migration.
  
  
  
  Adjust Migration Settings:
  
  Review the settings in the migration tool to ensure that it is not attempting to create views that already exist.
  If necessary, modify the migration strategy to avoid conflicts with existing database objects.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation or notes related to the specific migration tool you are using for any additional troubleshooting steps or recommendations.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above steps, consider reaching out to SAP Support for further assistance. They may provide specific notes or patches that address this issue.
  
  
  
  Related Information:
  
  Transaction Codes: SE11 (Data Dictionary), SE14 (Database Utility), ST22 (Dump Analysis), SM21 (System Log).
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide guidance on data migration issues.
  Migration Tools: Familiarize yourself with the specific migration tool you are using (e.g., SAP Data Migration Cockpit, SAP S/4HANA Migration Cockpit) and its documentation for best practices and troubleshooting.
  
  By following these steps, you should be able to resolve the CNV_DMC_VM001 error and proceed with your data migration or conversion process.