Its use in the warehouse
Separating the pick face from reserve stock shortens routes: the picker takes items from a place within reach, and replenishment brings down full cases or pallets from reserve. The minimum triggers replenishment, and the maximum sets how far the location is filled.
How Chainlink WMS applies it
In Chainlink WMS, each pick face has a product, a minimum, a maximum and a multiple. When picking leaves it at or below the minimum, Chainlink creates the replenishment task from reserve, following FEFO. For example, P-1001 in A-01-01-1 with a minimum of 24, a maximum of 96 and a case of 12: if the pick face is left at 24, the task is for 72 units.