Grow Your WhatsApp List with the ChatBubble and the Magic Links
Introduction
Growing your WhatsApp list helps you turn existing traffic and campaigns into a larger, more valuable audience you can re-engage for sales, Black Friday, product launches, and key brand moments.
The goal is to collect customers’ phone numbers and their explicit consent to be contacted on WhatsApp, so you can activate them later with high-performing campaigns.
Coco AI offers two simple tools to do this:
- ChatBubble, to capture opt-ins directly on your website
- Magic Links, to collect opt-ins from any high-intent customer touchpoint
Option 1: ChatBubble (Website Opt-ins)
The ChatBubble is a widget on your website that lets visitors opt in to WhatsApp by selecting pre-defined questions.
How to install the ChatBubble
- Go to List Growth → ChatBubble in your Coco AI dashboard or click HERE
- Click Install.
- You’ll be redirected to Shopify.
- Complete the ChatBubble setup directly in Shopify (design, placement, behavior).
You can also check our article on “How to modify the CSS of the ChatBubble” if you want deeper customization.
Best for: always-on opt-in collection directly from your website.
Option 2: Magic Links (Opt-ins Anywhere)
Magic Links allow you to collect WhatsApp opt-ins from any customer touchpoint.
How Magic Links work
When a customer:
- Clicks the CTA associated with the Magic Link, AND
- Sends the associated pre-written keyword
Coco AI will:
- Ask for consent
- Opt the customer into WhatsApp
- Send an automated reply, optionally including a discount code
Creating a Magic Link
When creating a Magic Link, you define:
- A Name (for internal tracking, e.g. Black Friday, Instagram Campaign)
- A Keyword (case-insensitive)
- A Reply message sent after opt-in
- An optional Discount code inserted automatically in the message
Once saved, the Magic Link is active and ready to use.
Where to use Magic Links
Use Magic Links:
- In popups (Klaviyo or any other tool)
- In emails, SMS, social media, ads...
- Anywhere you want to collect WhatsApp opt-ins from customers : it can even be an in store QR code!
Any relevant touchpoint can become a list growth opportunity.
Best Practices
- Start growing your list well before major campaigns
- Use ChatBubble for continuous website opt-ins
- Use Magic Links for popups and all high-intent touchpoints
- Clearly communicate the value ("talk to a specialist", exclusive access, discounts, early drops)
Building your WhatsApp list early ensures you’re ready for major events and campaign peaks.
Updated on: 23/01/2026
Thank you!