Every item has a capacity, which is the number of items that can be placed on the shelf. When the capacity is reduced to half then items need to be reordered. The system will only allow the reorder to occur when capacity is reduced to half in the computer. When people do not scan out items when they go out of date the count does not ever get to half capacity, which prevents the item from being ordered. When this happens the items must be cleared out by the Shelf Edge department. Each individual department can not clear their own counts because of internal controls against theft of items.