Facebook Webhook Subscriptions

Webhooks allow you to receive real-time notifications of changes to your Facebook page. For example, you can get notification whenever users post to your feed, comment on a post, or like your posts.

There are two steps for setting up Webhooks.

Step 1: Subscribe Facebook Page to App

Navigate to "Subscribed Apps" tab. Click on "Subscribe Page" button.

feed: Notifies you when an Page's feed has changed; posts, reactions, shares, and so on.

messages: Notifies you when your page has received a message via Messenger. For this, pages_messaging permission is required.

leadgen: Notifies you when lead form is submitted. For this, leads_retrieval permission is required.

Step 2: Subscribe App

Under App Subscriptions, click on "Subscribe App" button.