Bre comes from a world of technical support and customer education that's led her to technical writing, customer marketing, and product marketing. When she's AFK, you can find Bre backpacking in the Rockies or throwing her club and kicking the ball off the tee in a friendly game of golf.
What’s New in Postscript: March 2026 Product Updates
This month's releases focus on giving brands more visibility into what their AI knows, more flexibility in how they test and experiment, and richer tools for RCS and subscriber acquisition. Here's what's new.
More Ways to Run Experiments with Infinity Testing
Infinity Testing has two new automation triggers — Cart Abandoned and Link Clicked — so you can now run experiments at more moments across the subscriber journey, from early engagement all the way to high-intent purchase intent.
On the campaign side, you can now optimize for Unique Click-Through Rate (UCTR) in addition to Earnings per Message (EPM). If you're testing with smaller segments or shorter windows, UCTR gives you earlier signal on engagement before a purchase decision is made. You can choose the metric that matches what you're actually trying to learn.
Two more additions round out this release: you can now edit AI-generated message variants directly before activating an Infinity Testing Campaign experiment, so copy always stays on-brand. And updated dashboards now make it easy to view incremental revenue, lift vs. control, and performance over time at a glance so you can quickly understand exactly how AI is contributing to your SMS program.
Get started with Infinity Testing >
Content Library: More Ways to Train Shopper
Brand Center allows you to train the AI models that power Postscript AI products by:
Defining your brand voice and tone
Adding important references like FAQs and policies
Providing source material about your products and brand
Previewing AI-generated inspiration copy
Content Library lives inside Brand Center and is where you upload documents and add links or Text Snippets that train the AI on your brand.
By adding high-quality content to Content Library, you help ensure Shopper messages accurately reflect:
Your products
Your policies
FAQs
From one page, you can upload documents (PDFs, DOCX, TXT, and more), add links, and create Text Snippets for quick updates like holiday shipping deadlines or temporary policy changes. A built-in content preview lets you see exactly what was ingested without downloading files. And the Shopper Playground is now embedded directly in Content Library, so you can upload content, verify it synced, and test Shopper's responses without leaving the page.
It's the full loop, upload, preview, test, confirm, in one place. Check it out in Brand Center >
Bulk Popup Scheduling
If you've managed popup campaigns around a major sale, you know the pain: activating and deactivating popups one by one is slow and error-prone. A new Schedule tab lets you create a single event (e.g., "Holiday Sale," "Flash Event," whatever you're running) and simultaneously activate promotional popups while deactivating evergreen ones. Everything you need to flip a campaign is in one place, on one schedule.
Scratch-Off Gamification for Popups and Landing Pages
A new Scratch-Off block for popups and landing pages brings an interactive experience to your discount offers. Subscribers scratch away an overlay to reveal their offer and because they're actively engaging, they stay on the page longer. Both the reveal area and the overlay are fully customizable (images, colors, gradients). Works on desktop and mobile, with tap and accessibility support.
Start building your scratch-off popup >
Video in RCS Messages
RCS messages now support video. Merchants can upload video files or link from a URL, add an optional thumbnail, and preview playback before sending. Supported formats include MP4, M4V, MPEG, WEBM, and H263, with a 100MB limit per message. For subscribers not on RCS, the fallback message carries over the text content automatically.
Available now for all RCS-enabled shops.
Calendar Event Actions in RCS
Merchants running event-driven campaigns like product drops, flash sales, or limited releases can now add a "Create Calendar Event" action to RCS messages. When a subscriber taps it, a pre-filled calendar event opens in their default calendar app, ready to save. Subscribers not on RCS still receive the event details in the fallback message.
Available now for all RCS-enabled shops.
Opt-Out Reporting by Tenure and Purchase History
Understanding your opt-out rate is useful. Understanding who is opting out is more useful. The opt-out graph in List Growth now breaks down opt-outs by two new dimensions: how long a subscriber was on your list before opting out, and whether they'd made a purchase. This tells you whether you're losing new subscribers who never converted, or long-tenured buyers. This is a meaningful difference when it comes to diagnosing send frequency, suppression strategy, or campaign timing.
Know Which Sources Build Your Best Subscriber List
Postscript now captures inbound UTM parameters at opt-in, source, medium, campaign, term, and content, and makes them available for segmentation. You can build segments based on where a subscriber came from, and see how those cohorts perform over time.
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