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SMS in Two-Factor Authentication

SMS can be used to as an authentication (2FA) method in two-factor authentication. You can use a built-in 2FA account to handle SMS authentication, but if you have an SMS account configured for messaging, you can also use that account to handle authentication.

  1. To enable an SMS account for 2FA, when configuring your SMS service, select Two factor authentication under Usage.
    Usage option
  2. Go to Setup > Access > Two Factor Authentication.
  3. In the Two Factor Authentication screen, select Text message (SMS) under Authentication Method and confirm the message content. 
    Authentication method option
  4. In the SMS Account drop-down, select the SMS account you configured above.
  5. Click Finish.

Now, when someone logs in, they receive an SMS message with a security code.