What is RCS Messaging?

RCS (Rich Communication Services) is a messaging protocol designed to replace SMS as the standard for text messaging. While SMS is limited to 160 characters of plain text (or MMS for media), RCS supports high-resolution images, video, interactive buttons, carousels, read receipts, typing indicators, and branded sender profiles.

Think of RCS as bringing iMessage or WhatsApp-level features to the default messaging app on Android devices. Instead of a plain text message from a phone number, customers see a branded message from the business — with a verified logo, interactive buttons, and rich media. Apple added RCS support to iPhone starting with iOS 18.

For commerce, RCS is significant because it enables in-message experiences that were previously impossible over SMS. Customers can browse products in a carousel, tap a "Buy Now" button, and see rich product images — all within their default messaging app.

RCS messages are delivered through a brand's verified business profile. Instead of a phone number, customers see the brand's name, logo, and a verification badge. The message itself can include rich media (high-res images, GIFs, video), interactive buttons (purchase, learn more, visit store), carousels (swipeable product galleries), and suggested replies.

For RCS commerce, a brand can send a product message with an image, description, and a "Buy Now" button. The customer taps the button to initiate a purchase, which can be completed using stored payment methods — similar to text-to-buy but with a visual, interactive interface.

RCS requires carrier and platform support. Messages are sent through RCS Business Messaging APIs, and fallback to SMS is essential for recipients whose device or carrier doesn't yet support RCS. This dual-channel approach ensures every customer receives the message, with RCS-capable devices getting the enhanced experience.

RCS closes the experience gap between text messaging and messaging apps. While SMS is powerful because of its universal reach and 98% open rate, it's limited in what it can display. RCS keeps the reach and open rate advantages of SMS while adding the visual and interactive capabilities of app-based messaging.

For DTC brands, RCS means product messages can include images, buttons, and carousels instead of just text. Customers can see what they're buying, tap to purchase, and interact with the message in ways that weren't possible with SMS alone.

The combination of RCS for interactive experiences and SMS fallback for universal reach gives brands the best of both worlds. As RCS adoption grows (with Apple's iOS 18 adding support), the share of customers receiving the richer experience will continue to increase.