Message type: E = Error
Message class:  CNV_DMC_WDA - Messages used in WDA UI 
Message number: 007
Message text: No mass transfer ID found for subproject &1
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The SAP error message CNV_DMC_WDA007 indicates that there is no mass transfer ID found for the specified subproject. This error typically occurs in the context of data migration projects, particularly when using the SAP Data Migration Cockpit or similar tools.
Cause: Missing Mass Transfer ID: The most common cause of this error is that the mass transfer ID has not been created or is not properly assigned to the specified subproject. Incorrect Configuration: There may be issues with the configuration of the data migration project, leading to the inability to find the mass transfer ID. Data Migration Project Not Initialized: The data migration project may not have been initialized correctly, or the necessary steps to create a mass transfer ID have not been completed. Authorization Issues: There may be authorization issues preventing access to the mass transfer ID.
Solution: Check Mass Transfer ID: Verify that the mass transfer ID exists for the specified subproject. You can do
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