Messenger

Facebook Messenger uses Meta Page webhooks. Prompts support at most 3 button options.

Setup

1. Create a Facebook Page app with the Messenger product
2. Generate a page access token
3. Choose a verify_token and configure the Callback URL
4. Use the recipient Page-Scoped ID (PSID) as target_chat_id

Register

{
  "channel_id": "support-fb",
  "platform": "messenger",
  "target_chat_id": "27161130920158013",
  "credentials": {
    "page_access_token": "...",
    "app_secret": "...",
    "verify_token": "my-verify-secret"
  },
  "callback_url": "https://agent.example/hook",
  "channel_type": "MESSAGE"
}

Credentials

Webhook URL

{PUBLIC_WEBHOOK_URL}/webhooks/{organization_id}/messenger/{channel_id}

Subscribe to message events for the Page. Meta verifies with GET using your verify_token, then delivers messages via POST.