technology is also important, such as using radio frequency identification (RFID)to track inventory shipments and stock levels at stores and warehouses throughoutthe supply chain (see Chapter 14, Supply Chain Integration). Of course, having alot of technology will not help if there are not enough employees available tomove the products from the storeroom to the shelves, as Walmart has foundout. Cutting the hours of employees can cause stockouts even if the product isavailable in the stockroom. Nonetheless, one handheld RFID reader could havefound the missing case of hair spray in a few minutes.