How do I see what is in my vans?

Open Stock. Store and vans lists each place, how many parts it holds, when it was last counted and where it stands.
Press a place to open what it holds, each part against its minimum.
Items lists every part counted in stock and how many are in the store and on the vans. Moves is the record of every change, newest first.

Worth knowing

A part used before it was booked in shows under zero, in red, rather than being refused. Book in the delivery or count the place to put it right.