Message type: E = Error
Message class:  CNV_MBT_46 - PCL message class 
Message number: 121
Message text: Use F4 help to select a selection group id
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The SAP error message CNV_MBT_46121 typically occurs in the context of data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that a selection group ID is required but has not been provided or is invalid.
Cause: Missing Selection Group ID: The user has not entered a valid selection group ID in the relevant field. Invalid Selection Group ID: The entered selection group ID does not exist in the system or is not valid for the current context. Authorization Issues: The user may not have the necessary authorizations to access the selection group IDs.
Solution: Use F4 Help: Click on the F4 key or the search help icon next to the selection group ID field to display a list of available selection group IDs. This will help you select a valid ID. Check Configuration: Ensure that the selection group IDs are properly configured in the system. You may
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