Message type: E = Error
Message class:  CNV_MBT_46 - PCL message class 
Message number: 137
Message text: Customer type 'S' is not editable
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The SAP error message CNV_MBT_46137 indicates that the customer type 'S' (which typically refers to a "Supplier" or "Service" customer) is not editable in the context of the transaction or process you are attempting to perform. This error is often encountered during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools.
Cause: Customer Type Restrictions: The customer type 'S' may have specific restrictions that prevent it from being edited. This could be due to the configuration settings in the system or the nature of the data being processed. Data Migration Context: If you are trying to migrate or convert data, certain customer types may be locked or set to read-only to maintain data integrity. Authorization Issues: The user may not have the necessary authorizations to edit the customer type in question.
Solution: Check Configuration: Review the configuration settings for customer types in your SAP system. Ensure that the customer
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