1. order information is sent to the WMS, and the shuttle crane moves to the location of the tote box containing the ordered item
2. the shuttle moves to the tote box location and picks the entire tote box
3. the picked tote box is transferred via the shuttle crane to the conveyor interface and discharged
4. the discharged tote box is transported along the conveyor to the GTP (Goods-to-Person) station or the designated destination