@karussell Let me refine your answer a bit. One can use services of type pickup and delivery as follows:
Type “pickup” is - as the name suggests - a pickup at the corresponding location. Thus, capacity consumption increases by 10. Type “delivery” causes a delivery at the associated location and decreases capacity consumption by 10.
However, there is one major difference compared to shipments. Once a service “pickup” is picked up, it can never leave the vehicle anymore. Therefore, it stays in the vehicle until the end of the route, and consume capacity until the end. When it comes to services of type “delivery”, it is assumed that the underlying items are picked up at the start location of the vehicle and leave the vehicle at the delivery location.