For example, if the size of a case is increased to better protect the product it carries, the manufacturer will need to make sure its elevator can still carry the case from the factory to the warehouse. Retailers need to know that the case is larger, too. If they don't know the case is bigger, Schachte explains, "A customer is going to try to put the case in its rack and tear the top of the case off because all of a sudden it is too big."