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WhatsApp Business API is Meta’s official connection and the recommended option for your business’s main operation. It supports high message volume, comes with official support and a stability guarantee, unlocks Meta-approved templates and campaigns, and lets you keep using the WhatsApp Business app on your phone.

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Before you start

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Connect WhatsApp Business API

1

Create the channel

In Channels, click Add Channel and choose the WhatsApp Business API card.
2

Fill in the details

Fill in Channel Name and Default Team. In AI Agent (Optional), choose an active AI agent or keep No agent assigned. Click Create Channel.
3

Open the Meta connection

On the WhatsApp Business API Setup screen, click Connect WhatsApp Account. A Meta window opens. Follow the instructions in the popup window.
4

Sign in and choose the portfolio

Sign in with the Facebook account that manages the business. Select the business portfolio or create a new one, and check the business details.
5

Choose the WhatsApp Business account

Meta offers two paths:
  • Connect the WhatsApp Business app you already use. You keep using the app on your phone. Meta asks you to confirm the connection in the app itself, usually by scanning a QR code.
  • Create a new WhatsApp Business account with a number. Enter the country code and the number, and confirm the verification code sent by Meta.
If the number is already in use on another WhatsApp Business account that cannot be connected, Meta may require that account to be removed first. Follow the guidance shown in the Meta window.
6

Finish

When you finish, the Meta window closes and BluBash shows Setup completed successfully. You are taken to the channel page.
7

Add payment and test

On the channel page, under Payment Method, click Manage payment on Meta if you do not have an active payment method yet. Then send a message from another number to the connected number and check that the conversation shows up in the inbox.
If you need to stop, click Skip for now. The channel is saved and waits for the connection. Click it in the channel list to open Configure Channel and continue.

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What the channel page shows

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Messages inside and outside the 24-hour window

WhatsApp lets you reply freely while the customer has the conversation open. To reach a contact outside that window, or to start a conversation, use a Meta-approved template.

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How the AI agent takes part

Link an AI agent to the channel to reply right away, qualify the contact, and transfer to the team with a context note. Team members keep replying through BluBash, and the agent can take over again when the team hands the conversation back. See Hybrid service → and Hand off to AI →.

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Common errors

If you still have trouble, contact BluBash support and share the channel’s Technical Details.

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Next steps