# Pre-enroll MFA using sms

Initiate multi-factor authentication (MFA) enrollment using SMS.

This endpoint begins the SMS-based MFA setup by sending a verification code to the provided phone number.

The request must include:
- phoneNumber: The user's mobile phone number in international format. It must match the format defined in your organization's phone number validation pattern (phoneNumberRegexp).

Use this endpoint as the first step in enabling SMS-based MFA for a user.

Endpoint: POST /resources/auth/v1/user/mfa/sms/enroll
Security: bearer

## Request fields (application/json):

  - `phoneNumber` (string, required)