How To Fix CNV_DMC_MC056 - Migration object name must be unique

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_MC - Migration Object Modeler

• Message number: 056

• Message text: Migration object name must be unique

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_MC056 - Migration object name must be unique ?

  The SAP error message CNV_DMC_MC056 indicates that there is a conflict with the migration object name during a data migration process. This error typically arises when you are trying to create or define a migration object that already exists in the system, leading to a violation of the uniqueness constraint for migration object names.
  Cause:
  
  Duplicate Migration Object Name: The most common cause of this error is that the migration object name you are trying to use is already in use by another migration object in the system.
  Incorrect Configuration: There may be a misconfiguration in the migration settings or parameters that leads to the generation of a duplicate name.
  Data Consistency Issues: If there are inconsistencies in the data or the migration setup, it may lead to attempts to create objects with the same name.
  
  Solution:
  
  
  Check Existing Migration Objects: 
  
  Go to the relevant transaction (e.g., LTMC for Migration Cockpit) and check the list of existing migration objects. Look for the name you are trying to use and see if it already exists.
  
  
  
  Rename the Migration Object: 
  
  If you find that the migration object name is already in use, consider renaming your migration object to a unique name that does not conflict with existing objects.
  
  
  
  Review Migration Settings: 
  
  Check the configuration settings for the migration project to ensure that there are no errors or misconfigurations that could lead to duplicate names.
  
  
  
  Clear Cache: 
  
  Sometimes, clearing the cache or refreshing the system can help resolve issues related to stale data or configurations.
  
  
  
  Consult Documentation: 
  
  Refer to SAP documentation or notes related to the specific migration scenario you are working on for any additional guidance or troubleshooting steps.
  
  
  
  Contact SAP Support: 
  
  If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance. They may provide insights specific to your system configuration or migration scenario.
  
  
  
  Related Information:
  
  Migration Cockpit: The SAP Migration Cockpit is a tool used for data migration in SAP S/4HANA. Understanding how to use it effectively can help avoid such errors.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  Best Practices: Follow best practices for naming conventions and object management in SAP to minimize the risk of encountering such errors in the future.
  
  By following these steps, you should be able to resolve the CNV_DMC_MC056 error and successfully proceed with your migration tasks.