Connect LINE Messaging to WhatsApp Business
Automate workflows between LINE Messaging and WhatsApp Business. No coding required.
What you can automate between LINE Messaging and WhatsApp Business
These are the most popular automations teams set up between LINE Messaging and WhatsApp Business. Each one runs automatically once activated — no manual steps.
Send message when new message received
Post a message to a channel automatically when when a new message arrives in a channel.
Send message when new message received
Post a message to a channel automatically when when a new message arrives in a channel.
Sync LINE Messaging changes to WhatsApp Business
Keep WhatsApp Business updated when when someone mentions you or your team.
Get LINE Messaging alerts for WhatsApp Business
Never miss important WhatsApp Business updates with instant LINE Messaging notifications.
What syncs between LINE Messaging and WhatsApp Business
Messages from LINE Messaging are forwarded to WhatsApp Business in real-time, preserving the sender name, content, and any attachments. Keep both platforms in sync without switching between them.
Data from LINE Messaging
- Messages
- Channel posts
- Mentions
- Thread replies
- File attachments
Data from WhatsApp Business
- Messages
- Channel posts
- Mentions
- Thread replies
- File attachments
How to connect LINE Messaging to WhatsApp Business
Follow these steps to set up your integration. The entire process takes under 5 minutes.
What you'll need
- An active LINE Messaging account with permission to install apps
- An active WhatsApp Business account with permission to install apps
- A free Arahi AI account (sign up takes 30 seconds)
Create your Arahi AI account
Sign up at app.arahi.ai — it's free and takes 30 seconds. No credit card required. You'll land on the dashboard where you can create your first workflow.
Authenticate LINE Messaging
Click "Add Connection" and select LINE Messaging from the app directory. You'll be redirected to LINE Messaging's authorization page. Grant Arahi permission to read and post messages in your selected channels. You control which channels the integration can access.
Authenticate WhatsApp Business
Same process for WhatsApp Business. Click "Add Connection," select WhatsApp Business, and authorize access. Grant Arahi permission to read and post messages in your selected channels. You control which channels the integration can access.
Choose your trigger
Select what event starts the workflow. For this integration, popular triggers include: new message received in line messaging or new message received in whatsapp business. The trigger fires automatically whenever that event happens — no manual intervention.
Configure the action
Define what happens when the trigger fires. For example: send message in whatsapp business. Map the data fields between LINE Messaging and WhatsApp Business so the right information lands in the right place.
Test and activate
Run a test to confirm data flows correctly between LINE Messaging and WhatsApp Business. Check that the fields map as expected, then toggle the workflow on. It runs 24/7 from here — Arahi handles retries, error logging, and monitoring automatically.
Why connect LINE Messaging and WhatsApp Business?
Manually moving data between LINE Messaging and WhatsApp Business is error-prone and eats into your team's productive hours. Connecting them through Arahi eliminates that overhead — events in one app trigger actions in the other automatically.
Tips for your LINE Messaging + WhatsApp Business integration
Get more out of this integration with these best practices.
Who uses the LINE Messaging + WhatsApp Business integration?
Teams across industries connect LINE Messaging and WhatsApp Business to streamline their workflows.
Team leads managing multiple channels who need LINE Messaging and WhatsApp Business in sync
Cross-functional squads consolidating their communication stack
IT admins consolidating tools eliminating duplicate work across platforms
Frequently asked questions
Everything you need to know about connecting LINE Messaging and WhatsApp Business.
How do I connect LINE Messaging to WhatsApp Business?
Sign up for a free Arahi AI account, then click "Add Connection" to authenticate both LINE Messaging and WhatsApp Business via OAuth. Choose a workflow template — like syncing communication events to communication actions — customize the field mapping, and activate. The entire setup takes under 5 minutes.
What can I automate between LINE Messaging and WhatsApp Business?
You can automate a wide range of workflows: sync new LINE Messaging events to WhatsApp Business actions, trigger WhatsApp Business updates when LINE Messaging data changes, create WhatsApp Business records from LINE Messaging events, and build conditional workflows with filters and field mapping. Each workflow runs 24/7 with automatic retries.
Is the LINE Messaging and WhatsApp Business integration free?
Arahi AI includes 100 free actions per month on the Starter plan — enough for most small teams. If your LINE Messaging-to-WhatsApp Business workflows need more volume, paid plans start at $29/month with unlimited workflows and priority execution.
Is my LINE Messaging data secure when connected to WhatsApp Business?
Yes. Arahi uses OAuth 2.0 for authentication — we never store your LINE Messaging or WhatsApp Business passwords. All data is encrypted in transit (TLS 1.3) and at rest (AES-256). Your communication data is only accessed when a workflow runs, and you can revoke access at any time from your Arahi dashboard.
Can I sync data both ways between LINE Messaging and WhatsApp Business?
Yes. You can set up workflows that trigger from either LINE Messaging or WhatsApp Business. For example, create a workflow where LINE Messaging events update WhatsApp Business, and a separate one where WhatsApp Business changes sync back to LINE Messaging. Each direction is configured independently so you have full control.
Do I need technical skills to connect LINE Messaging and WhatsApp Business?
No coding is required. Arahi's visual workflow builder lets you configure triggers, actions, and field mapping with clicks. If you can use LINE Messaging and WhatsApp Business, you can set up the integration. Most users are running their first workflow within 10 minutes.
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