Rebuy Engine

Rebuy is an AI personalization and monetization platform built to power intelligent shopping experiences for the world’s best brands.

[Rebuy Engine @RebuyEngine]

Every BFCM shopper costs you something, and some cost you twice. Once to get them to your site, and again when a discount hands back the margin you just paid for 🫠

So what’s the alternative?

On Oct. 28 we're joining @QuickfireD on Ecomm Engine to talk about how brands are using AI and real-time intent to turn browsers into bigger buyers, without reaching for deeper discounts.

Real examples and tactics you can put in place before peak hits!

https://t.co/mEzegsLqQH

[James Van Erck @jameserck]

As most of you are aware, there has been an unprecedented wave of cyberattacks across the Shopify ecosystem, with a large number of technology partners impacted and delisted.

I want to take a moment to answer some questions and address some of the speculation. @RebuyEngine is one of the impacted partners. We were delisted, but thankfully not because of checkout hijacking.

WHAT HAPPENED

On October 14, our team noticed unusual activity on our public APIs. Attackers sent millions of requests probing them and eventually found an unprotected path to create a user account without verifying inbox ownership. Normally this wouldn’t be an issue, since accounts must be linked to a store to access anything. However, the attackers registered accounts using our company email domain and found that staff accounts were linked to our internal development stores with elevated privileges.

They then used those sessions to read settings through our APIs. Most of the reads were on our internal development stores, but they did read product settings and configurations for 11 merchant stores. No edits or changes were made, only reads, and the data accessed was mostly benign, such as product settings and data source rules. Our API does not expose sensitive data such as API keys or tokens. Each affected merchant was notified within 24 hours.

WHAT WE DID

Our security team contained and remediated the incident within a few hours of detection. We blocked the attackers’ IP addresses, disabled the accounts and sessions involved, and closed the vulnerable path. We also removed elevated privileges from all staff accounts. These privileges are now granted only to select employees, such as Customer Success Managers, who are added to a dedicated Google Workspace group so they can support merchant accounts.

We also promptly notified Shopify’s Security team. Even though we knew it would likely lead to a delisting, it was the right thing to do.

WHAT WE ARE DOING

Although the incident was contained and remediated within hours, we are working with a third-party security research team to verify our remediation and conduct a full penetration test of our authentication services. We will continue to work closely with Shopify’s Security team to close out the incident.

Our engineering team is using Claude Mythos and other frontier models to continuously scan every surface of our application for weaknesses, including complex chained attacks. We will keep using AI to help combat AI.

We are automatically enabling multi-factor authentication for all merchants to protect against weak or leaked credentials, and we’ll continue releasing security updates across the platform, including additional MFA methods and identity provider (IdP) support.

WHERE WE GO FROM HERE

Rebuy continues to function as expected for existing merchants. We remain hyper-vigilant and hope to be back on the App Store soon. We are committed to continuing to build the most powerful and secure personalization platform in ecommerce.

If you have questions or concerns, feel free to DM me, comment, or email me.

[Rebuy Engine @RebuyEngine]

You know what you made last Black Friday, but do you know how much money you left on the table?

We built a calculator to put a number on it.

Pick your industry, then enter your average order value and monthly orders and you’ll see what cart recommendations, bundles, and post-purchase offers could add to your BFCM weekend.

It runs on real results, not a sales pitch: BFCM 2025 data from thousands of Shopify stores powered by Rebuy, where personalization drove over $60M across 2.1 million orders in one weekend.

Last year's money is gone. This year's is still on the table.

https://t.co/D2H2tAaEpH

[Rebuy Engine @RebuyEngine]

Post-purchase upsells turn completed orders into extra revenue. Here's how to capitalize on your customers' buying momentum.

Every offer you show before checkout carries a littttle risk. Maybe it distracts a shopper or adds enough friction that they don't finish their order.

But after payment? There's zero risk.

With Rebuy Post-Purchase, accepting that offer takes one click. No re-entering payment details.

Take Polyvinyl Records for example, they offered a mystery record from their 400+ release catalog right after checkout and saw a 15% conversion rate.

Getting a second yes from a customer you've already paid to acquire is the cheapest revenue you'll ever earn, especially with BFCM right around the corner.

[Rebuy Engine @RebuyEngine]

Here’s the Black Friday math most brands skip.

You sell a product for $100. It costs $60 to make, so you keep $40.

Take 30% off, and that $30 doesn’t come out of the price. It comes out of your $40.

So now you're keeping $10 an order. That's three quarters of your profit, gone on every single sale. Poof. Sayonara. Goodbye forever.

Now that doesn't mean you shouldn't run discounts, but it definitely means you should know what an offer reallllly costs you before you set it.

Run the math on your best seller before you lock in your BFCM offer. And above everything else, look for ways to grow AOV instead of trying to deepen your discount.

That's what we do here at Rebuy, we help brands drive more revenue with personalized upsells and cross-sells across the customer journey. And there’s still time to get set up before the holiday rush.

[Rebuy Engine @RebuyEngine]

BFCM is just around the corner, but what do you reallllly know about who shops at this time of the year?

They probably found you through an ad or a gift guide.
They likely haven't read your about page.
And they mighttt just leave you for a better discount without a second thought.

But let's look at some stats. During BFCM, returning customers convert at more than double the rate of new visitors. And the average Shopify discount across Black Friday and Cyber Monday is 28%

So you're discounting your products for fickle shoppers who are less likely to buy and less likely to return.

But here's the other side of that data.

These same BFCM customers spend more on the first order. $159 on average versus $120 the rest of the year.

That first order is the biggest opportunity. If you might not get a second one, you'd best do everything you can to maximize the first one.

You've still got time to make sure your store is dialed in to boost AOV before the flood of holiday traffic hits. And if you need help getting started, Rebuy was made to help brands drive more revenue across the customer journey with personalized upsells and cross-sells.

[Rebuy Engine @RebuyEngine]

20 topics. 5 major themes. Insights from consumers, brands, and expert thought leaders.

We’re proud to have contributed to @QuickfireD's State of Ecommerce report, alongside leading tech and agency partners from across the ecosystem.

Unpacking the critical issues shaping ecommerce today – from AI integration and customer loyalty to safer, more inclusive experiences and sustainable, profitable growth.

Download your copy right here:

https://t.co/YTHNye3rT9

[Rebuy Engine @RebuyEngine]

@noahsark769 @replohq Hey Noah! Let me shoot you a DM and get you connected with someone here to chat

[Rebuy Engine @RebuyEngine]

You're $62 away from 15% off 👀

That personalized nudge is now built into Smart Flows with Dynamic Messaging.

Tell shoppers exactly how far they are away from free shipping or a discount, then have the banner recalculate in real time as the art grows.

When a customer crosses the line, the message flips to "Congrats! You've earned 15% off."

Free shipping ✅ Tiered discounts ✅ Bundle deals ✅

One message that keeps up with every customer.

[Rebuy Engine @RebuyEngine]

Tabs are here! 🗂️

Tabs for Merchandising Widgets lets your shoppers flip between curated product sets (up to ten) without scrolling past a wall of carousels.

Each tab pulls its own products, so every click shows something fresh.

Less clutter. More browsing. Happy customers.

[Rebuy Engine @RebuyEngine]

And an especially big thank you to our Momentum London sponsors, @Yotpo, @AttentiveHQ, Reveni, @Gorgias, @GetPurpleDot, and @Tapcart, for helping us bring it all together 💜

Cheerio until next time, London! 🇬🇧

[Rebuy Engine @RebuyEngine]

That’s a wrap on Momentum London!

Yesterday, we packed the room with an incredible group of ecommerce leaders, brands, and partners for an afternoon of conversations about what’s next for commerce.

[Rebuy Engine @RebuyEngine]

From preparing for BFCM to AI, personalization, and turning customer signals into action, our speakers brought their amazing insights and advice and kept the conversation flowing all afternoon.

A huge thank you to everyone who joined us, shared their perspective, and made the afternoon such a good one. Big thanks to @GetPurpleDot for hosting our wrap party at the Telegraph!

[Rebuy Engine @RebuyEngine]

Here's how it works: submit your site → @barrelny's team reviews submissions → 5 finalists get shortlisted → 1 gets their site audited live.

All five finalists walk away with a discount toward a full @barrelny UX Audit + BFCM Roadmap and a Nintendo Switch 2.

Think your site could use a second look before BFCM? Submit it here:

https://t.co/EL4m5WG9Fg

[Rebuy Engine @RebuyEngine]

Last call to submit your brand's site for a chance to win a Nintendo Switch 2 🎮

We've teamed up with @barrelny for something a little different ahead of this BFCM: Barrel's Live Site Audit, a live, unscripted audit of a brand's website led by Barrel's Director of Strategy Val Geisler and Design Director Christine Carforo.

https://t.co/EL4m5WG9Fg

[Rebuy Engine @RebuyEngine]

The Lexus Trestles Pro is underway at Lower Trestles, and Rebuy is proud to be the Official Ecommerce Success Partner.

Good luck to all the surfers!

[Rebuy Engine @RebuyEngine]

Around the Sound is back for its 6th year! Come join us alongside our friends at SeaMonster Studios for an afternoon of learning and networking with other ecommerce experts from Seattle and around the world.

No fluff, no sales pitches, just ecommerce professionals sharing what's actually working.

You’ll hear what’s working for brands like Buddha Jewelry, Flutterhabit, Deschutes Brewery, Millie’s Sipping Broth and others.

🗓️ Thursday, September 24th
📍 Daniel’s Broiler, Lake Union, Seattle
⏰ Event Time: 4:00 PM – 8:00 PM

https://t.co/jj7odnCbRb

[Rebuy Engine @RebuyEngine]

On 17 September, Festsaal Kreuzberg in Berlin will open its doors for Merchant Inspiration Talks.

500 decision-makers, founders, and teams will be coming together to talk about real scaling challenges — without marketing fluff and without sales pressure.

Teams from brands like On Running, HOLY, Braun Büffel, ESN, and BLACKROLL will be sharing deep-dive masterclasses plus there will be numerous interactive networking formats throughout the day.

Grab your tickets here: https://t.co/euK23Q8FTX

[Rebuy Engine @RebuyEngine]

Before BFCM traffic hits, find out what's costing you conversions (and potentially walk away with a Nintendo Switch 2 🎮)

We teamed up with @barrelny ahead of BFCM for the Live Site Audit on Wednesday, September 23 at 12PM EDT 🗓️

How it works:

📩 Submit your site
👀 Barrel reviews every entry
5️⃣ Five finalists shortlisted
🎉 One gets audited live

All five finalists get a discount on a full Barrel UX Audit + BFCM Roadmap, plus a Nintendo Switch 2.

https://t.co/EL4m5WG9Fg

[Rebuy Engine @RebuyEngine]

@tapcart_app Grab the report right here: https://t.co/kxucMj1xNl

[Rebuy Engine @RebuyEngine]

Another BFCM report? Trust us, this one is worth your time.

We teamed up with @Tapcart_app on their 2026 BFCM report along with our top tech and agency partners across ecommerce.

[Rebuy Engine @RebuyEngine]

@tapcart_app It's built on a survey of 1,200+ real shoppers, then paired with do-this guidance instead of vague trend talk.

Skimmable, actionable, and made to get used before, during, and after peak season.