---
layout: changelog
title: 'Send your MFA code through any channel with the custom factor'
date: 2026-08-14
cover: /images/blog/custom-mfa-factor/cover.avif
tags: auth, functions, messaging
---

The new **custom** factor for [multi-factor authentication](/docs/products/auth/mfa) removes the channel limit. Appwrite generates and verifies a 6-digit code, and your application decides how the user receives it: WhatsApp, a voice call, an internal messaging system, or any provider that Appwrite does not support directly.

Create a challenge with the `custom` factor, then read the code with a Server SDK, or from an Appwrite Function that holds the `users.read` scope. Appwrite delivers nothing for this factor, so your application sends the code through your own channel. The user then completes the challenge in the same way as every other factor.

[Read the announcement](/blog/post/custom-mfa-factor)