WhatsApp Inbox (Existing Number)
Go to the Connect Platform page
Open the Connect Platform page from the navbar or the Settings menu.

Click the plus button to add a new inbox or platform
Click the "+" button to the right of Inboxes to add a new inbox or platform.

Choose WhatsApp Business
Select the WhatsApp Business option.

Log in to Meta/Facebook
Sign in with your Meta or Facebook account.
Create a Business Portfolio
If you don't have a portfolio yet, fill in:
Business name
Business website
Country
Click Continue.
Connect your WhatsApp Business account
If you already have an account, select it.
If you don't, choose Create a new WhatsApp Business account and Create a new business profile.
Fill in your business profile
Enter your WhatsApp Business account name.
Set your display name (this is what customers will see).
Choose your business category.
Add your phone number
On the "Choose how you would like to onboard with Cekat Development" screen,
select "Connect your existing WhatsApp Business App".

Enter the phone number that's already registered with WhatsApp Business.
Verify with the OTP code
Enter the OTP code sent to your phone number.
Wait for the QR code
Once you're verified, a QR code will appear on screen.

Open WhatsApp on your phone
Open the WhatsApp app on your phone.
You'll receive a message from Facebook Business.

Scan the QR code
In that message, choose "Scan QR Code".
Decide whether you want to sync your chats. If you do, choose "Share Chat".

Scan the QR code shown in your browser.
Confirm the connection
Once it works, you'll see the message "You connected to Cekat" in WhatsApp on your phone.
Tap "OK".
Finish connecting
In your browser, click "Finish".

You're connected.