---
title: "Verify sender for project"
method: POST
path: "/v1/projects/{projectId}/whatsapp/senders/{senderId}/verify"
tags: ["WhatsApp Senders"]
---

# Verify sender for project

`POST /v1/projects/{projectId}/whatsapp/senders/{senderId}/verify`

## Request

- Base URL: `https://provisioning.api.sinch.com`
- URL: `https://provisioning.api.sinch.com/v1/projects/{projectId}/whatsapp/senders/{senderId}/verify`
- Auth: HTTP basic and HTTP bearer and OAuth 2
  - Client credentials
  - Token URL: `https://auth.sinch.com/oauth2/token`

Verify sender with the OTP received after triggering registration.

## Path parameters

- `projectId` string, required
- `senderId` string, required

## Request body

- WhatsappSenderInputVerifyDto
  - `code` string, otp: OTP code used for sender verification. Must be exactly 6 characters with no spaces. Not required if the sender number is already verified by Meta.

## Response `204`

Sender verified

## Other responses

- `400`: BadRequest
- `401`: Unauthorized
- `404`: NotFound
- `409`: Conflict
- `500`: InternalServerError

## Changes

> 17 revisions in range; 1 not diffed.

- **2026-09-01** `c6a937922d10`: 5 breaking, 22 info
  - the response's body type changed from no type to `object` for status `400`
  - the response's body type changed from no type to `object` for status `401`
  - the response's body type changed from no type to `object` for status `404`
  - the response's body type changed from no type to `object` for status `409`
  - …23 more
- **2026-08-18** `c78a716de420`: 1 info
  - api operation id `SendersController_verify_v1` removed and replaced with `WhatsappSendersController_verify_v1`

[Operation history](https://skmtc.dev/sinch/apis/provisioning-api/changes/v1/projects/:projectId/whatsapp/senders/:senderId/verify/post.md)

---

[API](https://skmtc.dev/sinch/apis/provisioning-api.md) - [All operations](https://skmtc.dev/sinch/apis/provisioning-api/llms.txt) - [OpenAPI document](https://skmtc.dev/sinch/apis/provisioning-api/revisions/90d78b3a8575?raw)