The process of restocking inventory to satisfy customer demand and maintain target stock levels is known as inventory replenishment. It entails choosing which products, in what amounts, and at what times to place new orders. Demand-driven strategies, planned reviews, or inventory reaching a reorder point can all initiate replenishment. Accurate demand forecasts, lead time information, and supplier dependability are critical for effective replenishment, which strikes a balance between carrying costs and service levels.