Prerequisites
=============

First, make sure you have followed our :doc:`preparation guide<preparation>`.

Then, check if you meet the following requirements:

- Make sure your system is accessible from the internet because WhatsApp sends
  messages via webhooks to your system.
- Make sure to have properly setup your
  :doc:`FQDN in Settings > System </settings/system/base>` (for the callback
  URL Meta will use to deliver new messages).