Klaviyo Becomes Global WhatsApp Commerce Inbox

Adding WhatsApp turns Klaviyo from a US centric email and SMS tool into a global commerce inbox. Klaviyo already owns the customer profile, campaign logic, and purchase data, so when a shopper replies on WhatsApp, a brand can run support, promotions, abandoned cart nudges, and reorder reminders in the same system instead of stitching together Meta, Twilio, and a separate CRM. That matters most in markets where WhatsApp is the default business channel, not an add on.

• Klaviyo launched WhatsApp and RCS in June 2025 as part of its broader omnichannel push, alongside a campaign builder spanning email, SMS, push, WhatsApp, and RCS. That makes messaging another native surface on top of the same 7B plus customer profiles and 2B daily events already flowing through Klaviyo.
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• The company has won before by making rich customer data usable for non technical ecommerce marketers. Earlier, that meant replacing CSV exports and spreadsheet segmentation with a live customer profile and flow builder. WhatsApp extends that same advantage into two way messaging, where history, segmentation, and purchase context make replies more useful than a standalone channel API does.
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• This also widens the competitive set. Twilio sells the channel infrastructure for WhatsApp and RCS across API driven products, while Gorgias is pushing from support into sales and marketing. Klaviyo sits in between, with a marketer friendly system of record that can monetize each added channel through higher software spend and more message volume per customer.
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The next step is for Klaviyo to make messaging feel less like campaigns and more like a continuous conversation. If it can connect WhatsApp, service, social signals, and AI agents into one workflow, it will be harder for international brands to justify separate tools for marketing, support, and conversational commerce.