Connect Facebook
Messenger to HAPP
Authorize via Meta OAuth, select your Facebook Page —
and your AI assistant replies in Messenger automatically.
Managing Messenger manually — costs you dearly
Managing Messenger
manually —
costs you dearly
Without HAPP every Facebook Page demands constant manual attention.
Handling
Manual replies in Messenger around the clock
Every message on the Facebook Page needs a manual reply — nights, weekends, no breaks.
Organization
Messages get lost across Pages
When a business has multiple Facebook Pages, the team switches between tabs and misses customer messages.
Configuration
Complex Meta authorization and permissions
OAuth, pages_messaging, Webhook — without HAPP setup takes hours and requires technical knowledge.
What the integration gives you
Connect Messenger once — and your AI assistant replies to customers on Facebook around the clock.
Messages from Facebook Messenger
All Messenger messages land in HAPP automatically — not a single one gets lost.
Works 24/7 without a manager
The bot replies instantly at any time — nights, weekends, and holidays included.
Multiple Pages in one HAPP
Connect multiple Facebook Pages — each gets its own channel and assistant.
Full Messenger chat history in HAPP
All conversations are stored automatically — easy to find and hand off to your team.
HAPP is requesting access to:
Secure OAuth authorization
HAPP never sees your password. Authorization goes through the official Meta OAuth dialog with Page selection.
What you need to connect
A Facebook Page and admin rights — OAuth setup will take under three minutes.
Drag cards to rearrange
How to connect Facebook Messenger
Three simple steps via Meta OAuth — and Messenger messages arrive in HAPP automatically.
Integrations
Push Notifications
- Send order updates to Telegram
- Real-time chat notifications
- Export new leads to spreadsheet
- Append rows automatically
Messengers
- Facebook Messenger integration
- Receive and send messages
- Receive customer messages
- Send automated replies
- Receive customer messages
- Send messages and auto-replies
- Receive incoming messages
- Send messages to customers
- Connect your Telegram bot
- Automated responses via Bot API
- Receive Direct messages
- Send messages and automate responses
- Template responses
- Customer correspondence
- Connect via webhooks
- Send AI replies back
- Embeddable chat widget
- Real-time AI conversations
Step 1: Find the integration
Open Integrations → Messengers → Facebook Messenger
Full verification of the Messenger channel
After connecting, HAPP displays the channel status, Page name, and real-time two-way message verification.
Integrations
Messengers
- Facebook Messenger integration
- Receive and send messages
- Receive customer messages
- Send automated replies
- Receive customer messages
- Send messages and auto-replies
- Receive incoming messages
- Send messages to customers
- Connect your Telegram bot
- Automated responses via Bot API
- Receive Direct messages
- Send messages and automate responses
- Template responses
- Customer correspondence
- Connect via webhooks
- Send AI replies back
- Embeddable chat widget
- Real-time AI conversations
Incoming messages via Webhook
Every Messenger message sent to the Page arrives in HAPP instantly via Webhook subscription.
Outgoing via Graph API
HAPP sends replies via Meta Graph API — customers see them from your Facebook Page.
What to do if it won't connect
Every error has a specific cause — find yours and fix it in under a minute.
Support
Can't find your error?
Our support team will sort out your situation individually — message us on Telegram.
Contact support →Token
OAuthException
Page Access Token expired
Re-run OAuth in HAPP → Integrations → Facebook Messenger → Reconnect. It takes under a minute.
Permissions
Messenger permissions not granted
During OAuth the pages_messaging or pages_manage_metadata permissions were not approved. Re-run authorization and approve all permissions.
Webhook
Webhook not registered
HAPP could not register the Webhook in Meta. Verify all permissions are granted and reconnect.
Page
Facebook Page not connected
The Page was not selected during OAuth or has been deactivated. Make sure the Page is active and re-run authorization.
Rate limit
Messaging limit exceeded
Meta limits Messenger message volume by app tier. HAPP queues and retries them automatically.
OAuth
OAuth authorization cancelled
Authorization was interrupted or the OAuth window was closed. Return to HAPP → Integrations → Facebook Messenger and try connecting again.
Disconnecting and reconnecting
What happens to your data and how to properly disconnect or restore the Facebook Messenger integration.
Disconnect
How to disconnect Messenger
Three steps — the integration stops, your data stays.
- 1Go to HAPP → Integrations → Facebook Messenger.
- 2Click Disconnect next to the Page name.
- 3Confirm the action in the dialog.
What happens after disconnecting
- New messages will stop arriving in HAPP
- The Webhook subscription will be cancelled in Meta
- The Facebook Page stays active
- Conversation history is preserved in HAPP
Reconnect
How to reconnect Messenger
Re-run OAuth authorization — all data is preserved.
- 1Go to HAPP → Integrations → Facebook Messenger.
- 2Click Connect and re-run the OAuth flow.
- 3HAPP automatically re-registers the Webhook in Meta.
What is preserved after reconnecting
- Full conversation history stays in HAPP
- Assistant and filter settings
- Facebook Page binding
- Channel statistics and analytics
FAQ
Answers to the most common questions about Facebook Messenger integration.
Do I need a personal Facebook account to connect?
Yes, but only for OAuth authorization. You need a personal Facebook account with admin or editor rights on the business Page. After authorization HAPP works autonomously — the personal account is not used.
What is pages_messaging and why is it needed?
pages_messaging is a Meta permission that allows HAPP to send and receive messages on behalf of your Facebook Page via the Messenger API. Without it the integration cannot send replies.
Can I connect multiple Facebook Pages?
Yes. During OAuth authorization select multiple Pages at once. Each Page creates its own channel in HAPP with its own assistant or operator team.
Is there a 24-hour window in Messenger like in WhatsApp?
Yes. Meta allows free replies for 24 hours after the customer's last message. After that, Message Tags must be used for specific scenarios or notification subscriptions.
Can I see in HAPP who messaged in Messenger?
Yes. HAPP receives the PSID (Page-Scoped User ID) — a unique sender identifier for your Page. Name and photo are fetched via Graph API unless the user restricted access.
What happens if I revoke permissions in Facebook settings?
HAPP will receive an OAuthException and stop processing messages. Go to HAPP → Integrations → Facebook Messenger, click Reconnect, and re-run OAuth.
Can customers tell an AI is replying?
The customer sees messages from your Facebook Page — the Page name and photo remain yours. You decide whether to mention that an AI assistant is responding.