Message type: E = Error
Message class:  CNVMBTSCRAMBLE - Scramble 
Message number: 038
Message text: No Field-Set selected initially.
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The SAP error message CNVMBTSCRAMBLE038: No Field-Set selected initially typically occurs in the context of data migration or data transformation processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that the system expects a field set to be selected for processing, but none has been specified.
Cause: No Field Set Selected: The primary cause of this error is that the user has not selected any field set in the migration or transformation process. Field sets are used to define which fields of data should be processed or transformed.
Configuration Issues: There may be issues with the configuration of the migration project or the specific data migration object being used. User Permissions: In some cases, user permissions may restrict access to certain field sets, leading to this error.
Solution: Select a Field Set: Go to the relevant screen in the migration cockpit or data transformation tool. Ensure that you select an appropriate
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