There are different ways to set your dispatch parameters, depending on vehicles types and other settings...
1. Go to Préférences /Office / Multi-véhicules
2. Go to "Dispatch Process configuration"
This menu allows you to set the dispatch process depending on different parameters, for example based on a fixed hour every day or a certain number of hour before the ride.
Reminder - Difference between dispatch and affectation for pre-booked ride :
--> Dispatch : the ride is virtually put on the driver's planning, but he doesn't receive it on his app untill the dispatch is validated in the "Dispatcher" menu (see this article)
--> Affectation : The drivers receives the ride on his application and can accept/reject it