A system and method of the present invention randomly mixes and palletizes various containers received from a conveyor. A control system received an order in advance to cooperate with an automatic storage and retrieval system to pick the containers, ordered by various customers, and to place them on a second conveyor. A robotic device, such as a robotic arm or a gantry system, selectively picks the containers from the second conveyor and places the containers on a pallet in a mixed fashion. The pallets are delivered to the respective customers.