How To Fix CNV_DMC_MC_EXCEPTION046 - Documentation object &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: 046

• Message text: Documentation object &1 already exists

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_MC_EXCEPTION046 - Documentation object &1 already exists ?

  The SAP error message CNV_DMC_MC_EXCEPTION046 indicates that a documentation object with the specified name (represented by &1) already exists in the system. This error typically occurs during data migration or conversion processes, particularly when using the SAP Data Migration Cockpit (DMC) or similar tools.
  Cause:
  The primary cause of this error is that the system is attempting to create or register a documentation object that has already been created in the database. This can happen due to:
  
  Duplicate entries in the migration data.
  An incomplete or interrupted migration process that left behind existing objects.
  A misconfiguration in the migration settings that leads to attempts to create existing objects.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check for Existing Objects:
  
  Use transaction codes like SE11 (Data Dictionary) or SE80 (Object Navigator) to check if the documentation object already exists in the system.
  If it does exist, you may need to decide whether to update it, delete it, or skip its creation.
  
  
  
  Modify Migration Data:
  
  Review the migration data to ensure there are no duplicates. If duplicates are found, remove or consolidate them as necessary.
  
  
  
  Adjust Migration Settings:
  
  Check the configuration settings in the Data Migration Cockpit to ensure that it is not set to create objects that already exist. Adjust the settings to prevent this from happening.
  
  
  
  Error Handling:
  
  Implement error handling in your migration process to catch such exceptions and log them for further analysis.
  
  
  
  Consult Documentation:
  
  Refer to the official SAP documentation for the Data Migration Cockpit or the specific migration tool you are using for any additional guidance on handling this error.
  
  
  
  Contact SAP Support:
  
  If the issue persists and you cannot find a resolution, consider reaching out to SAP Support for assistance. Provide them with the error details and any relevant logs.
  
  
  
  Related Information:
  
  SAP Notes: Check for any 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 on handling documentation objects.
  Community Forums: Engage with the SAP Community or forums where other users may have encountered similar issues and can share their solutions.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.