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SMS is a short and direct recovery channel. Every text carries the Stripe link the customer uses to update their card and pay the invoice.

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Sent under your brand name

Texts are sent under your brand name, not from a phone number. You choose it (letters and numbers, up to 11 characters) and authorize Airdun to send under it. Customers cannot reply to it. SMS reaches customers with a mobile number in a set of supported European countries and the UK. Not every EU country is supported; customers elsewhere are not sent texts.

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What a text says

  • Renewals and Free trials: Airdun decides case by case whether a text is worth sending, and when. The copy is Airdun’s short, fixed text, chosen from the failure reason and the customer’s language. There is nothing to write.
  • New customers: the sequence is fixed: an email, then one text a few hours after the failure if the invoice is still unpaid, using the SMS template you write on the use case’s Messages page. It must contain the payment link variable.
Texts have no voice. Voices apply to AI writer emails only.

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Timing and language

Texts go out between 9:00 and 20:00 in the customer’s time zone, Monday to Saturday, never on Sundays, and within the French legal hours for SMS. They are sent in the customer’s detected language, or in the use case’s fallback language. See Use Case Settings.

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Enabling SMS

Set up SMS once under Channels → SMS: the brand name your texts are sent under, your authorization for Airdun to use it, and your customers’ consent. Then turn SMS on for each use case that should use it, on its page under Autopilot. See Channels Setup.