The distribution centers ensured a steady and consistent flow of products to support the supply function. As Wal-Mart used sophisticated barcode technology and hand-held computer systems, managing the center became easier and more economical. Every employee had an access to real-time information regarding the inventory levels of all the products in the center. They had to just make two scans – one to identify the pallet, and the other to identify the location from where the stock had to be picked up. Different barcodes were used to label different products, shelves and bins in a center. The hand-held computer guided an employee with regard to the location of a particular product from a particular bin or shelf in the center. When the computer verified the bin and picked up a product, the employee confirmed whether it was the right product or not. The quantity of the product required from the center was entered into the hand-held computer by the employee and then the computer updated the information on the main server.
The hand-held computer also enabled the packaging department to get accurate information about the products to be packed. It displayed all information about the storage, packaging and shipping of a particular product thus, saving time on unnecessary paperwork. It also enabled the center