Skip to main content
You control which channels are active. Airdun sequences messages across whichever channels you enable, and adjusts automatically if you add or remove one later. There is no minimum or maximum.
1

Open the Channels page

In your Airdun dashboard, navigate to Channels from the left sidebar. You’ll see a card for each available channel with its current activation status.
2

Enable Email

Toggle Email on. Recovery emails are sent from one of your voices, on your own verified sending domain.
Email requires a verified sending domain (SPF and DKIM) and at least one voice before it can go live. See the Voices guide.
3

Enable SMS

Toggle SMS on. Airdun provisions a phone number on your behalf — there is nothing to configure on your end. Messages are sent from a local number where available.
4

Enable the In-App Wall

Toggle In-app wall on. This channel requires the Airdun snippet installed in your application, and it shows a dismissible payment prompt to a logged-in customer with an active recovery case.
Installation, the snippet, and your publishable key are covered in the In-App Wall guide.
Wall copy adapts automatically to the failure reason and is auto-translated per customer; you do not write separate copy per scenario. There is no access-blocking mode — the wall is always a soft, dismissible prompt.

​
Smart Retries

Below the channel toggles are the Smart Retries settings — mode, max attempts, and window. These describe your Stripe retry policy to Airdun; Stripe still executes the retries. Airdun uses the settings to project each case’s upcoming retries and to time outreach around them. Set these to match the Smart Retries policy in your Stripe Dashboard. Changing them here does not change what Stripe does. See Smart Retries for how the settings are used.