A term used in inventory management that describes the process by which stocks are resupplied from some central location. This process often involves the development of quantitatively based inventory models designed to optimize this resupply process.

See Order Cycle.

The amount of stock, in time, to be purchased when a recommended order is triggered. The unit quantity is calculated by looking forward, at the end of the lead time period from today, the replenishment cycle period over future demand (Forecasts + BOM demand + Central Warehouse demand)