How To Fix CNV_DMC_MC038 - Migration object ID '&' must be unique

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_MC - Migration Object Modeler

• Message number: 038

• Message text: Migration object ID '&' 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_MC038 - Migration object ID '&' must be unique ?

  The SAP error message CNV_DMC_MC038 indicates that there is a problem with the uniqueness of a migration object ID during a data migration process, typically when using the SAP Data Migration Cockpit or similar tools. This error occurs when the system detects that the migration object ID you are trying to use is not unique, meaning that there are multiple entries with the same ID in the migration data.
  Cause:
  
  Duplicate Migration Object IDs: The most common cause of this error is that the migration object ID you are trying to use has already been defined in the system, leading to a conflict.
  Incorrect Data Preparation: If the data being imported or migrated has not been properly prepared or cleaned, it may contain duplicates.
  Configuration Issues: There may be issues in the configuration of the migration project that lead to the same object ID being generated or used multiple times.
  
  Solution:
  
  Check for Duplicates: Review the migration data to identify any duplicate migration object IDs. You can do this by querying the relevant tables or using tools to analyze the data.
  Modify Migration Object IDs: If duplicates are found, modify the migration object IDs to ensure that each one is unique. This may involve renaming or reassigning IDs in your source data.
  Data Cleansing: Ensure that the data being migrated is cleansed and validated to remove any duplicates before attempting the migration again.
  Review Migration Configuration: Check the configuration settings of your migration project to ensure that there are no settings that could lead to the generation of duplicate IDs.
  Consult Documentation: Refer to the SAP documentation for the specific migration tool you are using for any additional guidelines or best practices regarding migration object IDs.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Migration Cockpit Documentation: Review the official SAP documentation for the Data Migration Cockpit or the specific migration tool you are using for detailed instructions on handling migration object IDs.
  Community Forums: Consider searching or posting in SAP community forums or support channels for insights from other users who may have encountered and resolved similar issues.
  
  By following these steps, you should be able to resolve the CNV_DMC_MC038 error and successfully complete your data migration process.