Connect WhatsApp
Business to HAPP
Enter your Phone Number ID and Meta token — and your AI assistant
automatically replies to customers' messages in WhatsApp.
Managing WhatsApp manually —
costs you dearly
Without HAPP every WhatsApp channel demands constant manual attention.
Manual replies around the clock
Every WhatsApp message needs a manual reply — nights, weekends, no breaks.
Phone tied to one device
Without Business API, WhatsApp is tied to a mobile device — the team can't access it simultaneously.
Complex Meta Business setup
Phone Number ID, Access Token, Webhook, templates — without HAPP setup takes hours and requires technical knowledge.
What the integration gives you
Connect WhatsApp once — and your AI assistant handles customer messages around the clock.
Customer messages from WhatsApp
All WhatsApp 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.
Replies from the AI assistant
The assistant replies to customers via WhatsApp — natural and instant.
Full WhatsApp chat history in HAPP
All conversations are stored automatically — easy to find and hand off to your team.
Hi {{1}}! Your order #{{2}} is confirmed. Expect delivery on {{3}}.
Meta message templates
HAPP automatically loads approved templates from Meta and fills in variables when sending.
What you need to connect
A Meta Business account and a verified phone number — and setup will take under five minutes.
Drag cards to rearrange
How to connect WhatsApp
Three simple steps via Meta API — and 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 → WhatsApp Business
First outbound — only by Meta rules
To message a customer first, you need a Meta-approved template. Replies within the 24-hour window don't require templates.
Meta approval within 24 hours
Templates go through Meta moderation — usually within 24 hours. HAPP shows each template's status in real time.
Variables {{1}}, {{2}} in the body
Insert customer name, order number, and other data — HAPP fills in the variables automatically when sending.
24-hour free window
If a customer messaged you, for 24 hours you can reply with any text without a template.
What a connected WhatsApp looks like
After connecting, WhatsApp appears in the Integrations section with the phone number, status, and company Display Name.
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
Real-time status
HAPP shows whether WhatsApp is online and messages are arriving — without page reload.
Phone and Display Name
The integration card shows the verified phone number and Business Display Name from Meta Business Manager.
What to do if it won't connect
Every error has a specific cause — find yours and fix it in under a minute.
Phone number
Phone not verified
Verify your number in Meta Business Manager: Business Settings → WhatsApp Accounts → Phone Numbers → Verify.
Template
TEMPLATE_NOT_APPROVED
Template not approved by Meta
Templates require Meta approval (up to 24 hrs). Check the status in Meta Business Manager → Message Templates.
Webhook
Webhook not registered
HAPP could not register the Webhook in Meta. Check that the Access Token is correct and reconnect.
Token
Access Token invalid or expired
Generate a new Access Token in Meta for Developers and update it in HAPP → Integrations → WhatsApp.
Rate limit
Messaging limit exceeded
Meta limits message volume by Business account tier. HAPP queues and retries them automatically.
Access revoked
Phone number access revoked
The Meta Business admin revoked access. Reconnect the integration with Meta Business administrator rights.
Support
Can't find your error?
Our support team will sort out your situation individually — message us on Telegram.
Contact support →Disconnecting and reconnecting
What happens to your data and how to properly disconnect or restore the WhatsApp integration.
Disconnect
How to disconnect WhatsApp
Three steps — the integration stops, your data stays.
- 1Go to HAPP → Integrations → WhatsApp.
- 2Click Disconnect next to the phone number.
- 3Confirm the action in the dialog.
What happens after disconnecting
- New messages will stop arriving in HAPP
- The Webhook will be deregistered in Meta
- The WhatsApp Business account stays active
- Conversation history is preserved in HAPP
Reconnect
How to reconnect WhatsApp
Three steps — all settings and data are preserved.
- 1Go to HAPP → Integrations → WhatsApp.
- 2Click Connect and enter the new Access Token.
- 3HAPP automatically re-registers the Webhook in Meta.
What is preserved after reconnecting
- Full conversation history stays in HAPP
- Assistant and filter settings
- List of loaded message templates
- Channel statistics and analytics
FAQ
Answers to the most common questions about WhatsApp Business integration.
What is the difference between WhatsApp Business and WhatsApp Business API?
WhatsApp Business is an app for small businesses with manual management. WhatsApp Business API is an automation interface via Meta for Developers. HAPP uses the API version, which processes messages programmatically without a mobile device.
Why is a Meta Business account required?
WhatsApp Business API is only accessible through Meta Business Manager. It is needed to register the phone number, get the Phone Number ID, manage templates, and configure Webhook subscriptions.
What is a Phone Number ID and where do I find it?
Phone Number ID is the unique identifier of your number in Meta's system. Find it at developers.facebook.com: your app → WhatsApp → Getting Started → Phone Number ID.
Are templates required to reply to customers?
No. If a customer messaged you first, for 24 hours you can reply with any text without a template. Templates are only required for outbound messages — when you initiate the conversation.
Can customers tell an AI is replying?
It's up to you. The customer sees a message from your WhatsApp Business number — name and avatar remain yours. You're free to mention or not mention that it's an AI assistant.
What happens when the Access Token expires?
HAPP will notify you and stop processing new messages. Generate a new token in Meta for Developers and update it in HAPP → Integrations → WhatsApp — the process takes under a minute.
Can I connect multiple WhatsApp numbers?
Yes. Each number connects separately via its Phone Number ID and creates its own channel in HAPP with its own assistant or operator team.