From Click to Loyalty: How Unified Meta and Klaviyo Systems Drove 8.5× ROAS and £540K Revenue

 

Case Study · Fashion · Ahead of Andromeda

A Year Before Andromeda: The 9-Month Meta × Klaviyo Experiment That Predicted the Algorithm

Client: Niche Fashion Brand · Period: Aug 2023 – Apr 2024
A single, self-built conversion campaign fused with Klaviyo retention — modelling Meta’s later Andromeda logic a year early.

Executive Summary

Before Meta announced Andromeda, this program was already running on the same principles: creative diversity, simplified structure, and a tight feedback loop between paid and retention. Every element — campaign design, audiences, creative cadence, Klaviyo flows, and measurement — was built and executed personally by Nicola Lewis. No agency. No outside support.

Context: Inventory Reality × Lockdown Legacy

Lockdown froze wholesale. Full inventory sat ready — archive pieces to clear, plus limited new runs. That allowed aggressive spend without stock-out risk and demanded disciplined creative rotation (swap, don’t pause).

A new audience also emerged: older women (40s–50s) drawn to the brand’s niche, rock-and-roll aesthetic. Early reach work produced first-party signal that seeded 1% lookalikes in 2023–24. CPMs were low, attention high, and ROAS consistently above typical apparel benchmarks.

Note: The wholesale business operated separately with its own marketing team. Results here reflect the direct-to-consumer campaigns and Klaviyo retention managed end-to-end by Nicola Lewis.

This campaign ran inside an ad account with around 12–15 other active campaigns but was the only one designed as a long form test — a nine-month lab to observe how Meta’s system learned when left to run without interruption.

The Human Signal Layer

Customer-service reviews showed buyers used exact product names (“Is the Alexandra back in stock?”). That language signalled memory and intent. We kept attention warm by replacing sold-out creatives rather than pausing, and mirrored customer phrasing in ad copy and flows.

“Most marketers never touch customer service. I did. Every complaint, every compliment, every ‘where’s my order?’ taught me who was really buying.”

Campaign Structure

  • Objective: Conversions / Sales.
  • Ad sets: 2 micro-niches (around 450k each), overlap manually removed.
  • Creative volume: 35+ assets across video, carousel, UGC, lifestyle, and product-only; seasonal rotation.
  • Budget split: 70% prospecting / 30% remarketing with capped bids.
  • Placements: 27+ across Facebook, Instagram, Messenger (WhatsApp noted for future use; not active).
  • Attribution hygiene: Offline Events mapped to sales for an extra validation layer.
  • Integration: Direct Meta → Klaviyo handover so retention flows could convert and compound.

Results Snapshot

Spend
£23,157.73

over 337 days

Revenue
£197,357.54

3,488 sales · 8.53× ROAS

CPA
£6.64

cost per purchase

Reach
99,022

unique users

Retention & Klaviyo Performance

Meta discovery fed high-intent sign-ups into Klaviyo; 229 campaigns and always-on flows converted and compounded lifetime value.

Klaviyo Campaign Revenue
£346,207.36

229 campaigns · seasonal + product-focused

Klaviyo Flow Revenue
£249,450.15

Welcome · Abandoned Cart · Post-Purchase · Win-Back

Total Klaviyo Revenue
£595,657.51

retention ROI driven from Meta traffic

  • Meta → Klaviyo loop: newsletter sign-ups from ads converted through automated sequences.
  • Attribution aligned: 7-day click windows kept measurement consistent across paid and email.
  • Content echo, not copy: flows used new angles (fit, care, returns intel) instead of recycling ad creatives.

Data Sources & Signal Map

Where the truth came from — and how it shaped decisions.

SourceWhat it told usHow we used it
Customer Service Threads (email & chat) Product-name recall, sizing pain points, reasons for returns, restock interest, delivery friction. Creative angles and copy in the buyer’s language; stock alerts; FAQs in flows to reduce refunds.
Klaviyo Events (opens, clicks, viewed product, orders) Resonant content by segment; cadence sensitivity. Flow sequencing and offers; campaign topics by season.
Meta Pixel + Offline Events Purchase confirmation; attribution sanity check. Kept CPA/ROAS honest; guided budget scaling.
Site Analytics (landing → PDP → cart) Which creatives drove depth, not just clicks. Kept “traffic-primer” ads live; retired dead-ends.
Inventory / Restock Feeds Sell-through pace; sizes out of stock; returns by SKU. Rotation rules: swap creative when stock shifts; restock pings via email.
Returns & Refund Reasons Fit/quality objections concentrated in a few SKUs. Pre-purchase education in ads & flows to lower preventable returns.

Internal Validation

On 14 May 2024, Nicola emailed management summarising the live results nine months in. The message documented the same structure later formalised in Andromeda: persistent lifetime budget, micro-niche ad sets, 35 creatives on rotation, and a direct Meta → Klaviyo loop.

“I started one campaign to test my strategy back in Aug last year (still active)… two ad sets around 450k and 35 creatives constantly updated with new copy and media. Hence the importance of creative that works on socials.”

Peer Group Benchmarks (Fashion / Apparel)

MetricYour ResultIndustry AverageDifference
Meta ROAS8.53×~2.9×≈ 3× higher
CPA (Cost per Purchase)£6.64~£20–45+~3–7× lower
Email Revenue Share£595,657.51 (campaigns+flows)~27% of store revenue~3× above norm
“These results weren’t a team effort. They were mine alone — strategy, execution, testing, and analysis from start to finish.” — Nicola Lewis

Why It Matters

When Meta launched Andromeda in late 2024, it validated this method: creative as targeting, persistent budgets, and full-funnel feedback between acquisition and retention.

  • Creative is targeting: variety trains the system faster than audience splits.
  • Know before you scale: niche brands earn data through depth, not volume.
  • ROAS is a vanity mirror: profit begins where attribution ends.
  • Gut still wins: algorithms follow data; intuition spots change first.

Closing Note

Andromeda made the philosophy official. This campaign proved it first — built from scratch, by hand, with receipts.

 

 

Skincare Brand’s Email Marketing Success with Klaviyo

 

Skincare · Klaviyo Turnaround Case Study
Case Study · Skincare · Klaviyo Turnaround

Skincare Brand’s Email Marketing Success with Klaviyo

A four-month recovery of a previously mismanaged Klaviyo account — rebuilt from the ground up to restore deliverability, segmentation, and flow logic. The result: top-tier engagement and a 101× ROI.

Executive Summary

This project involved taking over a mismanaged Klaviyo account for a skincare brand. After correcting poor deliverability, broken segmentation, and redundant automations, the account was rebuilt using a data-first framework guided by Shopify Analytics and real customer behaviour.

Within four months, email generated A$141,690.80 and represented 13.09% of total store revenue — while overall store sales dropped 44%. Email revenue, however, grew 95%, proving the power of owned media when properly engineered.

Financial Performance

Total Investment
A$1,400
Klaviyo software · 4 months
Attributed Revenue
A$141,690.80
Email contribution
ROI
10,120% (101×)
Platform-only basis
Gross Profit
A$140,290.80
Revenue − software cost

Detailed Analysis

Investment Breakdown
ItemAmountShare
Klaviyo SubscriptionA$1,400100%

Management time excluded to isolate software ROI.

Revenue Impact
MetricResult
Email Contribution to Total Store Revenue13.09%
Campaign PerformanceA$114,816.56 (81.03%)
Automated FlowsA$26,874.24 (18.97%)
Store Growth vs. Previous Period−44% (store) · +95% (email)

Peer Group Benchmarks (DTC Skincare · 2025)

MetricPeer AverageThis ResultStandingInterpretation
ROI6–12×101×🔥 Top 1%Exceptional performance for recovered accounts.
Email % of Revenue8–12%13.09%🏆 Above AverageStrong lifecycle contribution.
Open Rate40–45%58–62%🟢 OutstandingDeliverability fully restored.
Click Rate1.5–2.0%1.6–2.9%🟢 StrongContent engagement above peer norms.
Flow Share of Email Rev30–40%19%⚪ Growth OpportunityFuture expansion potential.

Key Insights

Exceptional Performance

Email revenue expanded while paid channels contracted. A 101× ROI places this account within the top percentile for skincare brands using Klaviyo.

Strategic Value

Applying first-principles engineering — deliverability repair → segmentation rebuild → automation logic — turned email into a stable profit engine contributing 13.09% of total revenue.

Recommendation

  • Activate SMS automations for high-intent reminders and offers.
  • Implement loyalty / rewards to increase repeat sales by 15–25%.
  • Expand flows (replenishment, cross-sell, win-back) to raise flow share to 30–35%.
  • Deepen personalisation by skin concern and routine to increase AOV and frequency.

Previous revenue prior to takeover was not under this management and is excluded from results.

Why ROAS Lies: How Ignoring Segmentation Burned a Once-Healthy Meta Account

 

Case Study · Meta Ads · Prospecting Turnaround

Why ROAS Lies: How Ignoring Segmentation Burned a Once-Healthy Meta Account

Originally built correctly with clean events and a strong acquisition framework. I helped a friend as a favour, then stepped away in May 2024 when guidance wasn’t followed. The account drifted on outdated settings (broad age targeting, lifetime budgets, stale creative) until acquisition collapsed and reporting became unreliable.

Executive Summary

New customer acquisition has declined sharply while returning customers mask the drop in top-funnel performance. Audience overlap exceeds 50%, targeting remains all genders 18–65+, and attribution is inflated as Meta and Klaviyo both claim the same conversions. Once adjusted for new-customer only impact, Meta’s effective ROAS halves and true End CAC nearly doubles.

Meta charges on impressions. Broad targeting + high overlap = paying for non-prospects and duplicate reach.

Performance Snapshot (90 Days)

New vs Returning Revenue
30% : 70%

£42,367 new · £97,141 returning

New Customers
843

≈ 9–10 per day

Audience Overlap
> 50%

Self-competition inflates CPM/CPC

Best CPP (45–54)
£4.71

Within “A+ Campaign”

Detailed Analysis

Acquisition Trend (New Customers)
PeriodNew CustomersPriorChange
Q2 2025 (Apr–Jun)7821,323 (Q2 2024)–41%
Q1 2025 (Jan–Mar)812930 (Q1 2024)–13%
Q4 2024 vs 2023968980–1%
Measurement: ROAS vs End CAC
Channel (90d)OrdersNew CustomersEnd CAC (all-in)
Meta Ads493214≈ £39
Klaviyo Email30760≈ £25

Klaviyo looks efficient because it monetises existing customers; Meta is the acquisition engine.

Audience & Spend

  • Major spend on 18–24 (£174) and 25–34 (£1,532) with weak purchase yield.
  • 45–54 performs best (CPP £4.71) with strong volume.
  • Reallocate toward 45–54 for ≈ +326 purchases without increasing total budget.

Attribution Inflation (Meta × Klaviyo)

MetricReportedAdjusted (new-customer only)
ROAS3.1×1.4×
End CAC£39£74–£82
  • 40–50% of Meta-reported conversions overlap with Klaviyo. Shorten Meta attribution (1-day click/1-day view) and separate new vs returning in reporting.
  • Estimated waste over the last 90 days: 30–40% of Meta spend.

The Takeaway

ROAS flatters. End CAC tells the truth. Without segmentation, fresh creative, or proper attribution, Meta becomes an expensive echo chamber for customers you already own.

 

The Power of Precision: How Klaviyo Drove a 1,742% ROI for a New Fast Fashion Account

Fast Fashion · New Klaviyo Build Case Study
Case Study · Fast Fashion · New Klaviyo Build

Fast Fashion Brand’s Email Marketing Success with Klaviyo

A new Klaviyo build started from scratch — informed by Shopify Analytics and engineered for performance, not aesthetics — delivering top-tier engagement and a 61× ROI in four months.

Executive Summary

This engagement was a fresh Klaviyo build for a fast-fashion brand. The system was designed from zero using Shopify Analytics to guide segmentation, cadence, and automation — prioritising measurable results over design polish.

Within four months, email generated £86,636.39 and accounted for 26.43% of total store revenue, returning a 6,056% ROI (61.6×). Owned media became the highest-margin growth channel.

Financial Performance

Total Investment
£1,407
Klaviyo software · 4 months
Attributed Revenue
£86,636.39
Email contribution
ROI
6,056% (61.6×)
Platform-only basis
Gross Profit
£85,229.39
Revenue − software cost

Detailed Analysis

Investment Breakdown
ItemAmountShare
Klaviyo Subscription£1,407100%

Management time excluded to isolate software ROI.

Revenue Impact
MetricResult
Email Contribution to Total Store Revenue26.43%
Campaign Performance£59,830.24 (69.06%)
Automated Flows£26,806.15 (30.94%)
Store Growth vs. Previous Period+32%

Peer Group Comparison (Fast-Fashion · 2025)

Metric2025 AvgYour ResultStandingInterpretation
ROI (Platform-only)8×–14×61.6×🔥 Top 1%Far exceeds typical ROI for high-volume fashion brands on Klaviyo.
Email % of Revenue20–25%26.43%🏆 Top TierOutperforming even top post-purchase setups.
Open Rate (Campaigns)42–48%60–63%🟢 OutstandingExceptional deliverability for a high-frequency segment.
Click Rate (CTR)1.4–2.1%2.0–3.0%🟢 Above AvgHigh content relevance and clean list hygiene.
Placed Order Rate0.12–0.25%0.25–0.5%✅ Top 10%Conversion depth matches best-in-class automation.
Flow Share of Email Revenue25–33%31%✅ HealthyBalanced for fast-fashion where campaigns dominate.
Unsubscribe Rate0.35–0.55%≈0.3%✅ ExcellentLow churn — cadence well controlled.
Bounce Rate0.6–1.0%≤0.5%✅ ExcellentSender reputation protected via list hygiene.

Key Insights

Exceptional Performance

At 61.6× ROI, the new Klaviyo system outperformed paid channels and became the brand’s highest-margin growth driver.

Strategic Value

Data-first build — Shopify Analytics → segmentation → automation — turned email into a predictable profit engine contributing 26.43% of revenue.

Recommendation

  • Introduce loyalty / VIP flows to lift repeat purchase rate by 15–25%.
  • Expand automations (replenishment, cross-sell, win-back) to push flow share toward 35–40%.
  • Grow new-customer acquisition to balance the retention-heavy mix.
  • Monitor deliverability — keep opens ≥60%; re-warm segments if engagement dips.

Any revenue prior to this build was not under this management and is excluded from results.