---
title: "Verify Brand SMS OTP"
method: PUT
path: "/10dlc/brand/{brandId}/smsOtp"
tags: ["Brands"]
---

# Verify Brand SMS OTP

`PUT /10dlc/brand/{brandId}/smsOtp`

Verify the SMS OTP (One-Time Password) for Sole Proprietor brand verification.

**Verification Flow:**

1. User receives OTP via SMS after triggering
2. User submits the OTP pin through this endpoint
3. Upon successful verification:
   - A `BRAND_OTP_VERIFIED` webhook event is sent to the CSP
   - The brand's `identityStatus` changes to `VERIFIED`
   - Campaigns can now be created for this brand

**Error Handling:**

Provides proper error responses for:
* Invalid OTP pins
* Expired OTPs
* OTP verification failures

## Path parameters

- `brandId` string, required

## Request body

- VerifyBrandSmsOtpRequest — Request body for verifying a Brand SMS OTP
  - `otpPin` string, required — The OTP PIN received via SMS

## Response `204`

OTP verified successfully - No content returned

## Other responses

- `400` — Bad Request - Invalid or expired OTP
- `422` — Validation Error
- `4XX` — Generic response error

## Changes

> 99 revisions in range; 1 not diffed.

- **2026-09-16** `a6a61a29ecdd` — 1 breaking, 1 info
  - the `errors/items/code` response's property type changed from `string` to `integer`, and format from no format to `int32` for status `4XX`
  - added the optional property `errors/items/meta` to the response with the `4XX` status
- **2026-08-17** `1571b0380bd7` — 1 breaking, 1 warning
  - the `errors/items/code` response's property type changed from `integer` to `string`, and format from `int32` to no format for status `4XX`
  - removed the optional property `errors/items/meta` from the response with the `4XX` status
- **2026-08-04** `8f5f4e537994` — 1 breaking, 1 info
  - the `errors/items/code` response's property type changed from `string` to `integer`, and format from no format to `int32` for status `4XX`
  - added the optional property `errors/items/meta` to the response with the `4XX` status

[Change history](https://skmtc.dev/team-telnyx/apis/telnyx-api-2/changes/10dlc/brand/:brandId/smsOtp/put.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/227c33b1ac9c?raw)