---
title: "Initialize Whatsapp phone number verification"
method: POST
path: "/whatsapp/business_accounts/{id}/phone_numbers"
tags: ["Whatsapp Phone Numbers"]
---

# Initialize Whatsapp phone number verification

`POST /whatsapp/business_accounts/{id}/phone_numbers`

Start the verification process to register a phone number with a WhatsApp Business Account.

## Path parameters

- `id` string, required

## Request body

- WhatsappPhoneNumberVerificationRequest
  - `phone_number` string, required
  - `display_name` string, required
  - `verification_method` 'sms' | 'voice'
  - `language` string

## Response `204`

Verification initiated

## Other responses

- `4XX` — Unexpected error

## Changes

> 92 revisions in range; 1 not diffed.

- **2026-08-04** `8f5f4e537994` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/team-telnyx/apis/telnyx-api-2/changes/whatsapp/business_accounts/:id/phone_numbers/post.md)

---

[API](https://skmtc.dev/team-telnyx/apis/telnyx-api-2.md) · [All operations](https://skmtc.dev/team-telnyx/apis/telnyx-api-2/llms.txt) · [OpenAPI document](https://skmtc.dev/team-telnyx/apis/telnyx-api-2/revisions/d8b8159753ee?raw)