2.4x conversion rate, 35% revenue from email/SMS
Apparel Brand · E-commerce
The challenge
Strong traffic, weak conversion, and almost no revenue captured after the first purchase. Email and SMS were an afterthought, leaving repeat-buyer money on the table every single month.
The mechanism
Klaviyo + Meta CAPI. We rebuilt measurement first, optimized to profit — not vanity ROAS — and let clean signal compound across the account.
The result
2.4x conversion rate, 35% revenue from email/SMS — measured, attributed and sustained in the UK market.
A UK apparel brand more than doubled conversion rate to 2.4x baseline and grew email/SMS to 35% of total revenue by deploying Klaviyo lifecycle flows on top of a Meta CAPI rebuild. Owned-channel revenue finally compounded instead of leaking.
The Brutal Problem
The founder had built the brand from her kitchen table during the pandemic and grown it to £1.4M ARR by 2025. By the time we met, she was 14 months into a slow decline she couldn't explain. Site traffic was healthy — 180K monthly sessions, mostly from Meta and organic — but conversion rate had drifted from 2.1% down to 0.9% over twelve months. CAC had crept up. Repeat purchase rate was 11%, a number she'd assumed was normal until she saw apparel-vertical benchmarks at 28-32%. She had taken out a £40K business loan in February to cover inventory ahead of summer. Two of her four staff were on reduced hours. Her partner had quietly asked, twice, whether she was ready to "consider going back to corporate." Her daughter's nursery fees were behind. She told us, in the audit call, that the brand had stopped being fun — she dreaded the daily Shopify check, dreaded the inventory report, dreaded the agency review on Fridays. The product was strong (organic UGC was up YoY, returns were under 8%, average rating 4.6). The problem was every customer was acting like a first-time customer forever, because nothing in the back-end was bringing them back.
What Made It Worse
Five cascading failures. (1) Klaviyo existed but had two flows — a welcome and one abandoned-cart sequence both written in 2023. (2) iOS opt-out and ad-blockers had degraded Meta signal; reported ROAS no longer matched bank deposits. (3) SMS wasn't deployed at all. (4) The product page had no urgency, no UGC, no social proof on the fold. (5) Post-purchase was a transactional receipt email and nothing else — no upsell, no review request, no win-back. Every customer effectively disappeared after one order.
The Diagnosis
The numbers were precise. Conversion rate of 0.9% against a UK apparel benchmark of 1.8-2.4%. Email revenue share at 9% against benchmark 25-35%. SMS revenue share 0%. Repeat purchase 11% vs benchmark 28-32%. Meta CAPI not deployed — Event Match Quality at 4.8. Browser-pixel data showed AddToCart firing reliably but Purchase events were dropping ~28% in iOS Safari sessions. The post-purchase sequence had a 71% unsubscribe rate on the second email because it was selling, hard, before the first delivery had even shipped. Product pages had a 3.4-second LCP, killing mobile conversions. The audit verdict: the brand had a £600K+/year revenue gap it could close without spending another pound on acquisition, just by capturing and re-engaging the customers it was already paying to acquire. The decline wasn't an ad-platform problem. It was an owned-channel problem masquerading as one.
The Solution Stack
10 weeks, 10 steps:
- Week 1 — Meta CAPI. Stape gateway + server-side GTM, deduplication, EMQ verified to 8.0+.
- Week 2 — Klaviyo audit + segment rebuild. 12 segments by AOV band, frequency, category affinity, lifecycle stage.
- Week 3 — Welcome flow rebuild. 7-email sequence with brand story, social proof, first-purchase incentive on email 4, cross-sell on 7.
- Week 3 — Abandoned cart rebuild. 3-email + 1-SMS sequence with dynamic product blocks and inventory urgency.
- Week 4 — Post-purchase sequence. 14-day arc: shipping → arrival → care guide → review request → cross-sell → win-back trigger.
- Week 5 — Browse abandonment. 2-email sequence for sessions with product-view but no add-to-cart.
- Week 6 — SMS deployment. Klaviyo SMS for cart, post-purchase, win-back. UK opt-in capture via on-site pop with first-purchase incentive.
- Week 7 — Win-back. 45/90/120 day inactivity sequences with progressive incentives.
- Week 8 — VIP tier. Loyalty-style segmentation for top 10% by LTV with early access and free shipping.
- Week 10 — Product page rebuild. LCP fix, UGC carousel on fold, sticky ATC, dynamic social proof.
The Inflection Point
Week 4. The rebuilt abandoned-cart sequence went live on a Monday. By the Friday, abandoned-cart recovery revenue had 4.2x'd over the previous week. The post-purchase sequence pushed first review-request email and the brand's TrustPilot review volume tripled. The founder messaged on the Sunday — she had checked Shopify and seen 14 returning-customer orders in a single day, which she hadn't seen since 2024. The next month, email revenue share crossed 22%. Two months later, with SMS layered, it hit 35%.
Final Numbers
| Metric | Before | After | Change |
|---|---|---|---|
| Conversion rate | 0.9% | 2.2% | +2.4x |
| Email/SMS revenue share | 9% | 35% | +3.9x |
| Repeat purchase rate | 11% | 31% | +2.8x |
| Event Match Quality | 4.8 | 8.0 | +67% |
| AOV | £42 | £58 | +38% |
| Blended CAC | £28 | £17 | -39% |
| Net margin | 4% | 21% | +17 pts |
What We Learned / Replicable Playbook
For apparel brands sub-£3M, the fastest revenue lever is almost always owned channels — not paid spend. The replicable sequence: (1) fix Meta CAPI first so paid stops bleeding, (2) rebuild Klaviyo from segmentation up rather than tweaking existing flows, (3) deploy SMS at the same time as email flows (compounds 1.6-2x), (4) the post-purchase sequence is where repeat-rate is won — never lead it with a sales pitch, (5) product page LCP under 2.5s is non-negotiable for mobile conversion. Brands that try to fix conversion with discounts before fixing the lifecycle stack burn margin and don't move the metric. Lifecycle first. Discounts last, if at all.
Daily-Life Outcome
The founder paid off the £40K loan in month seven. She restored both staff to full hours and hired a junior community manager in month nine. Her daughter's nursery fees came current. Her partner stopped raising the corporate-job conversation. She told us in the quarterly review she had started looking at fabric for the spring '27 collection — the first time in fourteen months she'd been able to think two seasons ahead.
FAQ
Won't aggressive email/SMS hurt the brand?
Only if it's bad email/SMS. Segmented, lifecycle-aware sends with strong content lift LTV without raising unsub rates above benchmark.
How long before email revenue share hits 30%+?
60-90 days from a rebuilt foundation, assuming reasonable list size (5K+).
Do we need to leave Shopify?
No. Shopify + Klaviyo + Stape + sGTM is the canonical stack.
Driving services: DTC Ecommerce Growth · Server-Side Tracking · SEM & Paid Advertising. Further reading: DTC Scaling on Profit · DTC Creative Velocity.
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