Enabling
First make sure your plan includes this feature and that WhatsApp is configured.
- Enable Phone OTP verification in Settings → Appointments.
- Add the Phone verification step to the booking flow in the form builder.
Customer flow
The customer enters their phone number, taps the "Continue" link in the WhatsApp message, then continues to booking or payment. The link is valid for 5 minutes and there is a short cooldown before resending.
The step is skipped for invite-link bookings and when the customer doesn't enter a phone number.