question

There are two strategies. You can build this logic in Process Flow, You let the trucks travel, load and unload as you have described this above. You begin with a small model. A truck, one company and your factory are the first objects at the beginning. If one cycle works, you try to repeat the cycle in an interval of one week. Then you add the second company into the model. If this works in cycles you add the second truck into your model. It isn't difficult to drag and drop objects in a 3D model window. It is difficult to get a model to work as you aspect it. Start always with very simple models.

The second strategy depends on the classic 3D approach. It isn't a truck that is responsible for the transport. The event that tells FlexSim that there are items ready for transport controls the truck. You build a 3D model without any truck at all. You place objects into your model, which release or create items at the times when a truck should later begins its travel to load the item. Currently the items are sent instantly to their destination (factory). That is OK. If the distribution seems to work, you place a truck into the model and connect the truck with the objects that are sending items by a centerport connection and activate in these objects the Use Transport option. FlexSim will internally create task sequences which tell the truck to transport the items from the sending object to the destination.