---
title: "Unsubscribe a number from one list or every list"
method: POST
path: "/optout-list-member/"
tags: ["Lists"]
---

# Unsubscribe a number from one list or every list

`POST /optout-list-member/`

## Request

- Base URL: `http://api.smsfusion.com.au`
- URL: `http://api.smsfusion.com.au/optout-list-member/`
- Auth: one of:
  - API key in query parameter `key`
  - HTTP basic

Marks matching contact rows unsubscribed; does not delete them

## Query parameters

- `key` string, required

## Response `200`

Opt-out recorded

- object
  - `success` boolean
  - `msisdn` string
  - `listid` integer
  - `updated` integer

## Other responses

- `400`: BAD_REQUEST - num missing, num/cc sent as array-style fields, or number invalid
- `404`: listid given and not found or not owned
- `405`: Method not allowed - POST only

---

[API](https://skmtc.dev/smsfusion/apis/sms-fusion-api.md) · [All operations](https://skmtc.dev/smsfusion/apis/sms-fusion-api/llms.txt) · [OpenAPI document](https://skmtc.dev/smsfusion/apis/sms-fusion-api/revisions/a88b2793a6e9?raw)