question

Please build first the flow connections without any involved taskexecuter object like an ASRS-Vehicle.

Then you find a small square at the end of the conveyor. That is the ExitTransfer. This object handles the transport to the next object, the rack. A Center-Connection from this object to the ASRS-Vehicle is the link to transfer the tasksequences to the Dispatcher in the taskexecuter. If you activate the Use Transport Option in the Exit Transfer, you will see the transport is done by the taskexecuter.

The Mouse Pointer is over the ExitTransfer object in the picture.