Your uptime monitor says your store is fine, but customers click "Pay Now" and nothing happens. No error, no feedback- they just leave. RevCure compares checkout starts to order completions in real-time. When a payment method starts failing, you get an instant alert showing which method is broken, how many customers are affected, and how much revenue is at risk. RevCure distinguishes between normal cart abandonment and actual failures using statistical anomaly detection, so you only get alerted.