We sell to some automated warehouses. Everything must have bar code and be packed is specific size boxes. If we charge too much for for packing, they will buy bulk and they have a packing department that packs and labels using semi-automated equipment that boxes, check weighs, and labels. If we happen to pack incorrect, they route to their packing department and then bill us. As a vendor you usually only have that happen once.
They have rows for plastic bags, a human riding on automated fork truck picks them. It goes to the correct bin and raises and lowers as needed. Other rows have fully robotic pickers.
When the order is taken the size shipping box is calculated and the final weight is determined in advance. This get routed and filled thru the warehouse. If it passes the check weight then a human arranges and adds packing material as needed. Someday this will be automated, right now humans are more efficient at Tetris. The box is closed and the computer calculates how it should be shipped lowest cost to the fraction of a cent and prints the shipping label. The boxes then get routed automatically to the correct access controlled holding area. The freight companies then come and collect everything in their area, this may happen late at night after the warehouse closes. Because of all the check weighing, errors are rare.
Their warehouse is a Multi-million dollar sight to behold.
I pity the human that rides back and forth, up and down all day, only stopping for breaks. If they get slow, that human goes to another department to pack, prep for stocking or just sweep the floors. If it is not break, they are working. Their efficiency and accuracy is monitored. If they do not meet standards then they are gone.
In this jobs favor, it is clean, weights to pick never exceed a certain weight, Is heated and air conditioned, parking lot is fenced and patrolled. It is a bad neighborhood so once you leave, you better have your pistol at your side for the carjackers. Or in my case, the uber driver knows exactly how to get in and out of there. He gets a nice tip.
Rod