Two routes with the same vehicle

Hi, how can I use the same vehicle to perform two routes on the same day if the vehicle has a short route and can run another short route. Example:
In the result of the calculation tells me that it takes 3 vehicles one is taken all day and the other two only half a day. How to make the vehicle that has the morning route can run another in the afternoon?

try modeling the jobs as shipments instead of services/pickups/deliveries.

You haven’t provided much information at all. However, it’s possible that you’ve not set a fixed cost for your vehicles to be considered. Set the working hours of your vehicle as the whole day and set your fleet as FINITE with only one vehicle. Does that get you anywhere closer?