---
title: "Block WhatsApp User Numbers"
method: POST
path: "/v2/{sid}/whatsapp/{phone_number}/block_users"
tags: ["default"]
---

# Block WhatsApp User Numbers

`POST /v2/{sid}/whatsapp/{phone_number}/block_users`

## Path parameters

- `sid` string, required
- `phone_number` string, required

## Headers

- `Content-Type` string, required
- `api-key` string, required

## Request body

- object
  - `messaging_product` string, required — The platform being used for messaging.
  - `block_users` object[], required — An array of elements representing the WhatsApp user mobile numbers to be blocked.
    - `user` string, required — The phone number in (E.164 format) of the WhatsApp user you want to block.

## Response `200`

OK

## Other responses

- `400` — Incorrect payload
- `401` — Unauthorized Phone Number Status
- `500` — Internal Server Error

---

[API](https://skmtc.net/kaleyra/apis/kaleyra-io-sms-apis.md) · [All operations](https://skmtc.net/kaleyra/apis/kaleyra-io-sms-apis/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/kaleyra/kaleyra-io-sms-apis/revisions/d9b785884d03/schema)