The robots at my facility moved shelves of product around a caged grid system for quick inventory and holdover until it gets packed by a person manning a station at the grid. It flashes a projector light on which slot to grab from, you scan it, and the robot drives away with the shelf. There’s a robot arm too, but it’s job is to just stack plastic totes in a 3x3 stack on a pallet, then a conveyor pushes the full ones to the side