The right reorder point gives replenishment time to arrive Most warehouses I've seen reorder one of two ways: someone notices the shelf is getting thin and fires off a PO, or they run out completely and spend a Tuesday morning calling three suppliers to find out who can ship today. Neither of those is a system. Both of them are exhausting. Here's the thing about your fuel light. It doesn't come on when you're on empty. It comes on when you have roughly 50 miles left — enough