Message type: E = Error
Message class:  CNV20308 - SLO CWB Package Comparison 
Message number: 072
Message text: MBT package &1 was defined, but CNV_MBT_CWB_EXEC_PACK_GET does not exist
Error message extract from SAP system. Copyright SAP SE.
The SAP error message CNV20308072 indicates that there is an issue with the Migration Object (MBT package) in the context of a data migration project, specifically related to the function module CNV_MBT_CWB_EXEC_PACK_GET not being found or defined.
Cause: Missing Function Module: The function module CNV_MBT_CWB_EXEC_PACK_GET is either not activated, not implemented, or has been deleted from the system. Incorrect Configuration: The MBT package may not be correctly configured or may reference a function module that is not available in the current system. Transport Issues: If the system is part of a landscape (e.g., Development, Quality, Production), the function module may not have been transported correctly from one system to another.
Solution: Check Function Module: Verify if the function module CNV_MBT_CWB_EXEC_PACK_GET exists in the system: Go to transaction SE37 (Function Module) and search for CNV_MBT_CWB_EXEC_PACK_GET. If it does not exist, you may need to implement it or restore it from a transport request if it was deleted. Activate the Function
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