👋 Hello CRM cowboys and DTC desperados

While you were busy debating whether to trust ChatGPT with your subject lines, Castore was busy getting actual results.

The performance sportswear brand didn’t just slap a discount code on a pop-up and hope for the best—they handed the wheel to Klaviyo’s AI and let the machines get to work. The result? A tidy 14% uplift in sign-ups.

No manual testing. No interns traumatised. Just data, timing, and a well-dressed algorithm.

Let’s dig in before another SaaS vendor tries to sell you a “revenue-driving widget” in Comic Sans.

🔍 Context: “We love data, but can it love us back?”

Castore already had Klaviyo running the show behind the scenes—personalisation, segmentation, the usual CRM Greatest Hits. But they wanted more first-party data and weren’t keen on bribing customers with 10% off just to ignore follow-up emails.

Enter: Klaviyo’s AI, with a well-timed nudge that basically said, “Psst, your pop-up sucks.”

🧠 Implementation: Pop-ups, but smarter

  • Intent-Based Triggers – Using AI to detect micro-signals like scroll depth, hover behaviour, and exit intent. Basically, it reads your digital body language better than your therapist.

  • AI Testing Overdrive – No tedious A/B tests that drag on for weeks. The AI continuously adjusted timing, placement, and copy until sign-ups started pinging like crazy.

  • Unified Data Stack – Castore’s moving towards a single customer view, blending their DTC and B2B data via the Klaviyo Data Platform. So yes, one day your rugby coach might get the same email as your mum.

📈 Results: Even the CRM team looked surprised

  • +14% Sign-Up Uplift – Over just six weeks. That’s not a “nice to have,” that’s a boardroom stat with bonus implications.

  • Double CRM Productivity – According to Castore’s Senior CRM Manager, the AI effectively turned one person into two. (No cloning involved. Yet.)

🔮 Strategic Lessons for the Rest of Us

1. AI isn’t just for chatbots and Black Mirror plotlines

The real power is in proactive optimisation. The AI didn’t wait to be told what to test—it told them what needed fixing. Big difference.

2. Pop-ups don’t need to suck

Timing is everything. A pop-up delivered at the wrong moment is spam. At the right moment? It’s a personal invitation. One earns you an email address. The other earns you a bounce.

3. Data unification isn’t just a buzzword

Having one customer view across DTC and B2B means better segmentation, more relevant messaging, and fewer “Oops, wrong audience” moments.

4. Scale ≠ burnout

Castore scaled sign-up optimisation without hiring more staff or drowning in manual tests. AI did the legwork. Humans did the thinking.

🧵 Bigger Picture: This Isn’t a One-Off

Other brands jumping on Klaviyo’s AI bandwagon are reporting similar lifts. From automated content generation to predictive analytics and dynamic segmentation—this isn’t a gimmick, it’s a strategy.

And unlike your last Martech platform that promised the world then ghosted you, this one’s actually delivering.

🛍️ For Media Agencies and Ecom Growth Gurus

You’re leaving money (and emails) on the table if you’re still running static forms and guesswork pop-ups. AI-led personalisation isn’t just the future—it’s the present, and it’s handing out leads like Glastonbury wristbands.

Plug in. Or get left behind.

Takeaway for the next pitch deck:

“We use AI to optimise for intent signals like exit hover and scroll behaviour, similar to Castore’s approach that increased sign-ups by 14% in six weeks.”

Now try saying that without your client’s jaw hitting the floor.

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Until next time!