Stop losing revenue to failed payments
20–40% of subscription churn is involuntary — customers who didn't want to leave but whose card failed. Dunning Engine Pro detects failures, classifies them by decline type, and sends smart recovery emails that bring customers back.
Connect your subscription provider. We handle the rest.
Link your ReCharge, Loop, Appstle, Seal, or Stripe account with an API key. We start monitoring for failed charges immediately — via webhooks and 15-minute polling backup.
Every failed payment is classified by decline type — expired card, insufficient funds, hard decline, or soft decline. Each gets a different recovery strategy with optimized timing.
A 3-step email sequence fires automatically — timed to the failure type. Expired cards get "update your payment" immediately. Insufficient funds get a delayed "we'll retry" message.
When the customer updates their card and the next charge succeeds, the sequence stops automatically. Your dashboard shows exactly how much revenue was recovered and your ROI.
ReCharge, Loop, Appstle, and Seal all include basic dunning — one generic email for every failure type. Stripe's built-in recovery is similarly limited. But a hard decline needs a completely different approach than an expired card. Sending the wrong message at the wrong time means lost customers and lost revenue.
Churn Buster solves this at $249/mo — too expensive for most Shopify brands. Dunning Engine Pro brings the same decline-code-aware intelligence at a fraction of the price, with a Shopify-native experience built for the App Store.
Every failure gets the right strategy — not a one-size-fits-all retry.
Everything you need to recover failed payments — nothing you don't.
Works with ReCharge, Loop, Appstle, Seal, and Stripe. Connect via API key — no code changes to your store.
Email timing optimized by decline type. Insufficient funds waits 48 hours. Expired cards notify immediately.
See exactly how much revenue you've recovered, your recovery rate, and which failure types are costing you most.
12 default email templates across 4 failure classes. Customize copy, timing, and merge fields to match your brand.
Respects Mastercard's 2026 excessive authorization rules. Hard declines are never retried — only customer notifications.
Embedded in Shopify Admin with Polaris UI. Install from the App Store — no external accounts or dashboards.
Straightforward plans that scale with your store.
Free scan — see your recoverable revenue in under 2 minutes.