Expand global messaging with WhatsApp
Tap into the power of WhatsApp, natively in Customer.io. Connect on a global scale and create seamless, personalized experiences with the world's most popular messaging app.
- 14-day free trial
- No credit card required
- Cancel anytime
Trusted by 8,000+ brands around the world to send data-powered communication each day
Enter the chat with WhatsApp
Connect with customers where they're active and engaged. Deliver tailored messages based on real behavior—not guesswork—and turn conversations into conversions on their preferred channel.
Welcome new users: Guide customers through onboarding with interactive walkthroughs, quick-start tips, and personalized setup assistance that drives activation.
Verify and activate: Send secure one-time passwords, account confirmations, and verification codes that customers receive and act on instantly.
Convert strategically: Trigger sales, offers, and exclusive deals at the right time—when and where customers are ready to buy.
Capture attention: Create thumb-stopping moments with images and interactive elements (like buttons and lists) that go beyond basic text.
The messaging app preferred by billions
WhatsApp reaches over 3 billion active users globally, with a 98% open rate—surpassing email and SMS engagement. For marketers, engaging this channel means your messages actually get seen, read, and acted on.
Grow channels, increase conversions
Add WhatsApp to your multi-channel mix and amplify impact. Coordinate WhatsApp alongside email, SMS, in-app, and push to create connected customer journeys that span every touchpoint within Customer.io.
WhatsApp features
Personalize at send time
Use Liquid to dynamically tailor approved templates
WhatsApp providers
Choose to send WhatsApp natively or via Twilio
Transactional messaging
Deliver order confirmations, shipping updates, and alerts
A/B testing
Optimize messages and monitor performance
Analytics + metrics
Gain insight into audience behavior to improve success
Link shortening
Easily shorten URLs to stay within character limits
Rich experiences
WhatsApp messages support images, video, GIFs, and buttons
One unified view
Drag-and-drop WhatsApp into your workflow, alongside other channels
WhatsApp marketing strategies
Discover WhatsApp best practices and mobile tips for building a unified multi-channel experience.
WhatsApp best practices for business messaging
Your guide to personalized mobile onboarding
Mobile messaging trends for 2025
The art of intimacy and timing in text
The personal connection audit: 10 questions every marketer should ask
Push notification psychology: How timing and messaging drive engagement
Preferred by product-led companies
Customer.io enabled us to start experimenting with SMS as a channel for re-engaging dormant audiences. We saw a 3X uplift in dormant resurrection when we leveraged SMS over push or email.
After evaluating Customer.io and Braze head to head, we decided to go with Customer.io for the ease of integration, transactional messages, our mobile capabilities, especially push notifications, and for the support, we know we would get.
We use all channels in our campaigns, when it makes sense to do so. Last month we sent over 11M emails, over 5M push notifications, almost 1M in-app messages, and almost 100,000 SMS messages from Customer.io.
We have been using Customer.io since 2015, and it is a flexible and powerful platform. We can create customized campaigns based on how often our users walk their dogs, which makes our messaging more effective for us and our sponsors. Terrific customer support combined with their great product makes Customer.io an important partner for our mobile app.
We were blown away by our ability to have marketers create complex automations without having to get too technical. We also have engineers in the platform and love that both departments can easily execute their visions.
Supercharge your messaging automation
- 14-day free trial
- No credit card required
- Cancel anytime