What RCS Actually Means for Your SMS Strategy
What RCS Actually Is (and Why It's Different From MMS)
If you've heard of RCS but assumed it was a fancier version of MMS, it's worth understanding why that framing undersells it. MMS was designed to attach media to a message. RCS is designed to make the message itself an experience.
A few things make RCS meaningfully different:
Verified sender identity. Your brand name, logo, and a Google-issued badge appear in the thread before the message is even opened — which matters more for trust and engagement than most marketers expect.
Rich, interactive content. Swipeable carousels, product cards with tappable CTAs, suggested replies, and now video and calendar actions — all inside the native messaging app your subscribers already use.
Up to 1,000 characters per message without segmentation, so you're not cramming copy or paying for overages.
None of this requires a new app or any change in subscriber behavior. That's what makes it a genuine upgrade rather than a new channel to manage.
The Performance Case for RCS
The numbers are hard to argue with. Postscript merchants running RCS are seeing 50% higher CTR, 29% higher CVR, and 35% higher EPM vs standard SMS.
The lift makes sense when you see RCS in action. Richer content gives subscribers more reasons to engage, verified sender identity builds trust before the message is opened, and interactive elements reduce friction between receiving a message and taking action. Every piece of the experience is designed to close the gap between "message received" and "purchase made."
What's New — Video Support and Calendar Actions
RCS at Postscript has always supported rich cards, carousels, verified sender profiles, and suggested replies. We recently added two features that push the experience further.
Video support lets merchants embed content directly into RCS cards and carousels via URL — product walkthroughs, brand storytelling, launch reveals, tutorial content. For brands that have invested in video as part of their creative strategy, this is a meaningful unlock: that content can now reach subscribers in the highest-intent channel in your stack.
Calendar actions are the more underrated addition. With a single tap, subscribers can save a product drop, lock in a sale date, or add a brand event to their calendar. That action carries real intent signal — a subscriber who saves your launch to their calendar is actively committing to show up. Use cases include:
Flash sales and limited-time offers
New collection or product drops
Webinars and live shopping events
Restock alerts for waitlisted items
How Ecommerce Brands Should Be Using RCS Right Now
RCS works best as an upgrade layer for the moments in your program that already drive the most revenue — not a wholesale replacement for SMS. Here's where it has the most natural leverage:
Welcome flows. The first message a new subscriber receives sets the tone for the entire relationship. A high-res hero image, a short brand video, a tappable CTA — it's a fundamentally different first impression than plain text.
Abandoned cart. Instead of a text reminder with a link, send a carousel showing exactly what the subscriber left behind, with product images, pricing, and a direct path back to checkout. Fewer steps between message and purchase means better conversion.
Product launches. Video support changes what's possible here. A launch message that plays the reveal video in-thread, followed by a product card and a calendar action to save the drop date, does the work of multiple touchpoints in a single send.
Post-purchase. An underutilized window in most SMS programs. RCS opens up tutorial content, cross-sell carousels, and loyalty messaging that feels premium rather than transactional.
How to Get Started With RCS on Postscript
RCS is available to mid-market and enterprise Shopify brands with active SMS programs. Here's how it works:
Submit your application to kick off verification of your sender profile — the step that enables the verified badge and branded inbox experience.
Get verified and turn RCS on in Flow Builder. Your existing automations and campaigns start delivering as RCS messages automatically, with SMS fallback for any subscribers whose devices don't support it yet.
Layer in video and calendar actions where they make the most impact — launches, abandoned cart, welcome flows.
The setup is intentionally low-friction. You don't need to rebuild your flows or learn a new tool.
Want to see what it feels like before you apply? We built a live demo you can experience right now on your phone — a real RCS flow delivered directly to your messaging app.
Try the live RCS demo (US only).
