Connect WhatsApp — Automatic Setup
The fastest way to connect a WhatsApp number, using Meta's popup.
Automatic Setup is the fastest way to connect a WhatsApp number. A single popup from Meta walks you through picking (or creating) your WhatsApp Business Account and phone number, and HexaFloww finishes the rest.
Before you start
- You need the Admin or Manager role.
- You need a Facebook account with access to a Meta Business (or the ability to create one in the popup).
- The phone number you want to use must be able to receive an SMS or call to verify it, and must not already be active on a personal WhatsApp or WhatsApp Business app. If it is, use Coexistence instead.
The Automatic Setup button only appears when your HexaFloww instance has Embedded Signup configured. If you don't see it, use Manual setup.
Connect your number
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Open the WhatsApp connect page. Sidebar → Connect Accounts → WhatsApp, or go to
/admin/connect-accounts/whatsapp. -
Click "Connect New WhatsApp Number". This opens Meta's Embedded Signup popup. Keep the popup open until it finishes — don't close it or navigate away.
WhatsApp connect page with the Connect New WhatsApp Number button -
Sign in and choose your business. Log in with Facebook and select the Meta Business that should own this number, or create one.
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Pick or create the WhatsApp Business Account and number. Choose an existing WhatsApp Business Account or create a new one, then add the phone number and verify it with the code Meta sends by SMS or call.
Meta Embedded Signup steps for WhatsApp Business Account and phone number -
Finish and return to HexaFloww. When the popup closes, HexaFloww exchanges the sign-in, subscribes your number to webhooks, and adds it to the Connected Numbers list. This takes a few seconds.
One WhatsApp number per project
Each project can have one active WhatsApp number. Once one is connected, the "Connect a number" card disappears. To use a different number, disconnect the current one first, or use a separate project — see Switching workspace.
After connecting
Next steps once your number is live:
- Check your account health — quality rating and messaging limit.
- Create a message template and submit it for approval.
- Send your first broadcast campaign.
Common problems
- Popup closed before finishing — nothing is saved. Start again and complete every step.
- "Number already registered" — the number is in use on a WhatsApp app. Remove it from the app first, or connect with Coexistence.
- Connected but stuck "Pending" — Meta is still verifying the number. Refresh the page after a few minutes; if it persists, check WhatsApp Manager in Meta Business Manager.