In SAP S/4HANA Transportation Management, incompatibilities are used to define restrictions during automatic and manual planning to prevent certain combinations of objects. According to the SAP documentation, the following incompatibility types are valid in the Automatic and Manual Planning incompatibility area:

Vehicle resource - Location (stay level) (A): This incompatibility type restricts a vehicle resource from staying at a specific location (e.g., due to regulatory or operational constraints).

Freight unit - Freight booking (C): This type prevents specific freight units from being assigned to certain freight bookings (e.g., for ocean or air transport) due to incompatibilities like cargo type or equipment restrictions.

The other options are incorrect:

Transportation request header - Transportation request header (B)is not a standard incompatibility type for planning; it is more relevant to freight unit building or other processes.

Carrier - Transportation order (D)is used in carrier selection or tendering, not in the Automatic and Manual Planning incompatibility area.