How To Fix DMC_GENERAL458 - Migration Object &1 has already a calculated view; creation not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: DMC_GENERAL - MWB: General Messages

• Message number: 458

• Message text: Migration Object &1 has already a calculated view; creation not possible

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DMC_GENERAL458 - Migration Object &1 has already a calculated view; creation not possible ?

  The SAP error message DMC_GENERAL458 indicates that a migration object you are trying to create already has an associated calculated view. This typically occurs during data migration processes, particularly when using SAP Data Migration Cockpit or similar tools.
  Cause:
  The error arises when:
  
  You attempt to create a new calculated view for a migration object that already has an existing calculated view associated with it.
  There may be a conflict in the migration process where the system detects that the object is already defined and does not allow for the creation of a duplicate.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing Views:
  
  Verify if a calculated view already exists for the migration object in question. You can do this by navigating to the relevant area in your SAP system (e.g., SAP HANA Studio or SAP Web IDE) and checking the list of calculated views.
  
  
  
  Use Existing View:
  
  If a calculated view already exists, consider using it instead of trying to create a new one. You may need to adjust your migration strategy to accommodate the existing view.
  
  
  
  Delete or Modify Existing View:
  
  If the existing calculated view is not needed or is incorrect, you can delete it or modify it as necessary. Ensure that you have the appropriate permissions and that you understand the implications of deleting or modifying views in your system.
  
  
  
  Consult Documentation:
  
  Review the SAP documentation related to the migration object and calculated views to ensure you are following the correct procedures.
  
  
  
  Check for System Updates:
  
  Ensure that your SAP system is up to date with the latest patches and updates, as there may be bug fixes or improvements related to data migration processes.
  
  
  
  Contact SAP Support:
  
  If you are unable to resolve the issue, consider reaching out to SAP Support for assistance. Provide them with the error message and any relevant details about your migration process.
  
  
  
  Related Information:
  
  Migration Objects: These are specific entities that you are trying to migrate from one system to another, often defined in the context of SAP S/4HANA migrations.
  Calculated Views: These are database views that are created to represent data in a specific way, often used in reporting and analytics.
  SAP Data Migration Cockpit: A tool used for data migration in SAP systems, which provides a user-friendly interface for managing migration objects and processes.
  
  By following these steps, you should be able to address the DMC_GENERAL458 error and proceed with your migration tasks.