Onboard an additional WABA on Coexistence
Learn how to onboard an additional WhatsApp number on DoubleTick using Coexistence (Embedded Signup), from logging in to confirming a successful connection.
DoubleTick allows businesses to onboard multiple WhatsApp Business numbers under the same account. If you already have an existing WhatsApp Business number and want to connect it to DoubleTick using the Coexistence method, this guide walks you through the complete process step by step using Embedded Signup.
What's covered
Prerequisites
Before starting, ensure the following:
You have access to your DoubleTick account login credentials.
The phone number you want to onboard is already active on the WhatsApp Business App.
You have admin access to the correct Facebook account and Business Portfolio.
Step-by-step guide to add an additional number on Coexistence
Step 1: Log in to your DoubleTick account Open your browser and visit the DoubleTick platform. Log in using your registered mobile number and enter the OTP received on your phone. After logging in, you will land on the Chat Section of your account.
Step 2: Open the WhatsApp number management section From the Chat screen, move your cursor to the left side to expand the navigation panel. Click on Settings, then under Settings, select Manage Channels.
Here, you will be able to view all WhatsApp Business API numbers already onboarded in your DoubleTick account.
Step 3: Click on "Add Number" On the top-right corner of the Manage Channels screen, click the green Add Number button — a pop-up window will appear.
Step 4: Select Embedded Signup method Choose Add Number using Embedded Signup. You will be asked to select your onboarding method — DoubleTick provides two options, Cloud API onboarding and Coexistence onboarding (connect an existing WhatsApp Business number). For this guide, we will proceed with Coexistence.
Step 5: Choose "Connect your existing WhatsApp Business number" Select the first option, Connect your existing WhatsApp Business number, then click Confirm and Proceed.
Step 6: Log in to your Facebook account The system will prompt you to log in to Facebook for verification. Continue with the currently logged-in Facebook account, or click Log in with another account to select a different one. Once logged in, click Continue.
Step 7: Select your Business Portfolio After Facebook login, you will be asked to choose your Business Portfolio. Select the appropriate Business Portfolio from the list, then click Continue or Next.
Step 8: Enter your phone number Enter the phone number you want to onboard and click Next. A dropdown will appear — select Add a new WhatsApp number, confirm that the entered phone number is displayed correctly, then click Next.
Step 9: Scan the QR code from WhatsApp Business App A QR code will appear on your desktop screen. Open the WhatsApp Business App on your mobile phone, tap the option that says Scan QR Code, and scan the QR code displayed on your desktop.
Step 10: Confirm business details and time zone Your Business Account Name will appear on screen. Select the correct Time Zone based on your country, then click Next.
Step 11: Final confirmation Click on Confirm. The system will display a message such as "Connecting your account. This may take a few moments," and initially it may show that the account is not yet connected. Click Finish — the page will load for a few seconds, and then the number will appear as Connected Successfully in your DoubleTick account.
You have now successfully onboarded an additional phone number in your DoubleTick account using the Coexistence (Embedded Signup) method. This process is ideal for businesses that want to continue using their WhatsApp Business App while also integrating the same number into DoubleTick for API-based messaging and automation.
Key takeaways
Coexistence lets you connect a WhatsApp Business number that's already active on the WhatsApp Business App — you don't need a fresh number.
The entire setup runs through Meta's official Embedded Signup flow, so no third-party workarounds are involved.
You'll need admin access to the correct Facebook account and Business Portfolio before you start.
Scanning the QR code from the WhatsApp Business App shares your last six months of chat history with DoubleTick.
FAQs
Do I need a new number to use Coexistence? No. Coexistence is built for numbers that are already active on the WhatsApp Business App. The number must remain connected to the app throughout onboarding — don't delete or deregister it beforehand.
What if I want to use a different Facebook account during onboarding? On the Facebook login step, click Log in with another account and select the account you want to use before continuing.
What happens when I scan the QR code? Scanning the QR code from the WhatsApp Business App securely connects your existing account to DoubleTick and shares your chat history from the last six months.
Can I keep using the WhatsApp Business App after connecting to DoubleTick? Yes — that's the point of Coexistence. You can continue using the WhatsApp Business App while also messaging and automating through DoubleTick on the same number.
What if the connection doesn't complete right away? It's normal for the screen to briefly show the account as not yet connected after clicking Confirm. Wait a few moments and click Finish — the number will then appear as Connected Successfully.
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