ROAS multiplied by 2.5× in 4 months
Premium ready-to-wear boutique with a strong WooCommerce site but loss-making Google Ads campaigns (1.8x ROAS). 3,200 visitors/month, 0.9% conversion rate, 89€ AOV. The account mixed Search, Shopping, and Display with no segmentation by product margin.
Full restructure into Performance Max + Shopping segmented by margin, with CRO audit of the purchase funnel and A/B testing on the product page.
The exact stack used to deliver these results — no secrets, everything documented.
| Metric | Before | After | Change |
|---|---|---|---|
| ROAS | 1.8x | 4.6x | +155% |
| Cost per Purchase | 42€ | 21€ | -50% |
| Conversion Rate | 0.9% | 2.7% | +200% |
| Monthly Revenue | 18K€ | 61K€ | +239% |
4 transferable lessons, applicable to your business regardless of sector.
On Performance Max, segmenting the product feed by gross margin unlocks 2–3× ROAS without changing budget.
A CRO audit usually reveals 4–6 frictions invisible to the internal team — outside eyes always pay off.
Colour + position of a single CTA button can mean +18% conversions — test everything, assume nothing.
GA4 Enhanced Conversions + Ads import is non-negotiable for any Performance Max e-commerce campaign.
Every case combines multiple systems. Here are the ones that made the difference here:
Three more case studies from the same sector or with similar challenges.