When Stripe's Built-In Dunning Isn't Enough Every subscription business eventually hits the same silent killer: involuntary churn. A customer wants to keep paying you, but their card fails. RevenueCat's State of Subscriptions 2026 report highlights payment failures as one of the leading causes of involuntary churn across subscription apps — and that's not just mobile. For Stripe-based web subscriptions, the same problem exists and the default tooling leaves a lot of room for improvement. Stripe handles the basics — it retries on a schedule and sends a generic email. For an early-stage startup, that's enough. But once revenue starts to matter, Stripe's defaults start to feel blunt. A $500/month VIP customer gets the same retry schedule as someone on a free trial. A stolen card — which will never succeed — gets retried the same way as a card that temporarily had insufficient funds. And there's no clean way to know what's happening with any specific customer's failed payment without digging through raw logs.…