Blinkit Stock Availability Monitoring catches pin-code level stock-outs before they cost you sales. See how dark-store availability tracking works, with sample data. On Blinkit, an out-of-stock product is not a temporary inconvenience. It is a sale that goes, instantly and silently, to whichever competitor is still on the shelf — and the shopper rarely comes back to check whether you have restocked. In a ten-minute delivery market, availability is not a hygiene metric. It is revenue, decided minute by minute, dark store by dark store.