Underbuying protects cash—but can cost sales, customer trust, and service levels Most operations are losing cash in one of two directions, and they usually don't know which one until the damage is done. Overbuying feels safe. You've got stock, you can ship, nobody's calling you at noon because a lane is empty. But that comfort costs real money — working capital locked in pallets you won't touch for 90 days, rack space you're paying for, product that edges toward expiry or obs

Your ERP says 144 units. Your WMS says 137. Your Shopify store sold 6 yesterday and the order hasn't hit your system yet. Which number do you pick when a customer calls asking if something is in stock? Most teams just... pick one and hope. That's not a process, that's a prayer. The fantasy of a "unified inventory view" sounds simple. One number, everywhere, always current. The reality is that your ERP was built to manage financial transactions, your WMS was built to move prod