Ship to Party missing while create freight booking with different FUs with different customers

Hi Team,

We person request successful SAP TM (S4HANA Embedded ) wherever we request to person 1 water freight booking contains aggregate freight units with antithetic customers with either aforesaid larboard of discharge oregon antithetic larboard of discharge. But erstwhile one creating freight booking and aft adding freight units to FB, vessel to enactment is blank successful concern spouse tab successful freight booking, is it SAP TM modular behavior? however tin we marque it disposable each the Ship to enactment BPs successful Business spouse tab successful freight booking? delight enactment that readying is applicable lone larboard to port.

Example:

FU1 with Cust 1

FU2 with Cust 2

Both FU1 & FU2 assigned to Freight Booking FB. 

Kindly assistance to supply your invaluable inputs. 

Thanks