About registration authentication through SMS

You may be prompted to register by sending an SMS to WhatsApp. If you receive the SMS prompt, you can follow these steps to complete registration:
  1. Tap Send code. This will redirect you to your SMS messaging app.
  2. Tap
    to send the pre-written message to WhatsApp from your SMS messaging app. International messaging or other carrier charges may apply.
    • Note: In some cases, you may be asked to complete an additional step to re-verify your phone number.
  3. After sending your SMS, return to WhatsApp.
  4. Enter your two-step verification code if you have one, and follow the remaining registration prompts.

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