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

# Verify Brand SMS OTP

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

## Request

- Base URL: `https://api.telnyx.com/v2`
- URL: `https://api.telnyx.com/v2/10dlc/brand/{brandId}/smsOtp`
- Auth: HTTP bearer

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

- **2026-10-21** `67df31283a8a`: 1 breaking, 1 info
  - the `errors/items/code` response's property type changed from `integer` to `string`, and format from `int32` to no format for status `4XX`
  - added the optional property `errors/items/description` to the response with the `4XX` status
- **2026-10-15** `a72569d69430`: 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

[Operation history](https://skmtc.dev/team-telnyx/apis/telnyx-api/changes/10dlc/brand/:brandId/smsOtp/put.md)

---

[API](https://skmtc.dev/team-telnyx/apis/telnyx-api.md) - [All operations](https://skmtc.dev/team-telnyx/apis/telnyx-api/llms.txt) - [OpenAPI document](https://skmtc.dev/team-telnyx/apis/telnyx-api/revisions/0f17b8167873?raw)