How to connect a WhatsApp line

• ☎️ The number you want to connect must not be linked to an active WhatsApp or WhatsApp Business account. If it is, delete the account, wait 5 minutes, and start the process.
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• 🧰 You must have access to the correct Meta Business Manager (the one used for campaigns).
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• 📶 The SIM card must be inserted in a phone capable of receiving SMS or calls.
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• 💳 Have a valid payment method (credit card) ready to add it to the Business Manager.
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API to Meta/WhatsApp: once connected, the number cannot be used in the WhatsApp mobile app. From that moment, you will only be able to access conversations and chat through Darwin’s platform.

Note: Darwin does not allow connecting lines with WhatsApp Coexistence. Meta has not yet fixed the failures affecting this type of connection, so we cannot guarantee that the AI will receive and reply to messages. The only available connection method is the API.

1)🔐 Log in to Darwin : https://app.getdarwin.ai/login
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2)🧭 Side Menu: Channels > All channels > Connect new channel > Add WhatsApp channel.

3)✅ Confirm the pop-up: Read the instruction and confirm to proceed.
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4)🔵 Log in with Facebook: Use the Facebook account associated with the Business Manager where the line will be connected.
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5)🗂️ Select the business portfolio: Choose the Business Manager portfolio where the line will be added.
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​Important: use the same portfolio that will be used for campaigns with this number. If required, complete the company website.

​Tip: if you manage multiple portfolios, verify which one applies.
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6) 🔌 API connection (Darwin platform only)

In Choose a WhatsApp Business Account, select Create a new WhatsApp Business Account.

In Select a profile, select Create a new WhatsApp Business profile.

A2) 🧾 Fill in the details

• Internal Account name: Only inside the Business Manager.
• WhatsApp Display Name: The name visible to users. It must match the company name.
• Category: Select the one that best describes the business.

Select Add new number and enter the number to connect.
Choose how to receive the code: SMS or Call.
Enter the code sent to the phone with the SIM.

In the popup, select Add payment method (you’ll be redirected to Business Manager).

In Business Manager: “Payment method” → “Add payment method” → add the card.

Here is an example of how to add it via Business Manager if you carry out the process later. Click here.

Go back to Darwin > Channels and verify the number appears in the list.

​Note: From that moment, the AI will respond via that WhatsApp line exclusively from Darwin.