Airdun does not retry payments. Stripe executes every retry, under the Smart Retries policy configured in your Stripe account. Airdun never charges a card. Its role is to time recovery outreach around Stripe’s scheduled attempts and to show you when the next attempt will land.
What the “Smart Retries” settings do
In your Airdun dashboard, the Smart Retries settings record your Stripe retry policy so Airdun knows when Stripe will attempt a charge:- Mode — whether Stripe’s Smart Retries are in effect for the case.
- Max attempts — how many retries the policy allows (Stripe’s default is 8).
- Window — the period the retries are spread across (Stripe’s default is 14 days).
- Project the upcoming retries on each recovery case — anchored on Stripe’s real next attempt when it is known, otherwise on the policy’s cadence.
- Time outreach around them — so a payment reminder reaches the customer near the moment Stripe is about to try the card again, rather than at an arbitrary time.
How the failure type shapes outreach
While Stripe handles the charging, Airdun adapts the outreach to the failure reason:- Expired card — a retry cannot succeed until the customer updates the card, so Airdun prioritises outreach that prompts a card update.
- Insufficient funds — Airdun times messaging around likely payday windows, when Stripe’s next attempt is more likely to clear.
- Bank block or do-not-honor — these usually need customer action, so Airdun leads with outreach.
- 3DS / authentication required — Airdun surfaces the authentication request through outreach rather than relying on a silent re-attempt.