Create Authentication (OTP) Notification

You can send one-time passwords (OTPs) or verification codes to your users via WhatsApp when they perform secure actions, such as logging in to your website or app, or resetting their password.

To do this, you need to first add an Authentication message template and then create a Notification of type “Transactions/Integration/API” to send the authentication messages to your contacts.

You can trigger this notification using our REST API from your website, app, or automation tools like Zapier or Pabbly.

For detailed instructions on creating and triggering notifications with our REST API, refer to the guide below.

>>> Learn how to send a Transactional Notification using our REST API

Now that you know how to create marketing and transactional notifications, let’s explore how to personalize and send messages using template variables.

Updated on: 04/07/2025