Inventory

Walgreens inventory system is not public for outsiders. However, according to my past experience in retail. Walgreens probably uses a Periodic "p" system. In a periodic review system the stock position is reviewed at fixed intervals. When the review is made, the stock position is "ordered up" to a target inventory level. As a former employee at Walgreens, during stocking we would only restock those items that were out. We would only order those supplies that was needed rather than extra items when they were still on the shelf.