Case studies
Customer evidence showing how stronger first-party signals changed Meta measurement and ad-account outcomes.
10 customer case studies · 21 preserved account screenshots
Proof, with context
Before-and-after records, preserved screenshots, and explicit measurement notes for every customer story.

Atari
First-party tracking
How Atari established first-party tracking for its commerce storefront
Atari coordinated a first-party tracking implementation with Bily in early 2025. The setup was confirmed working on 2 April 2025, and current Bily product records show activity in July 2026.
Apr 2025
Setup confirmed working
Jul 2026
Current activity verified
15+ months
Between verified operating points
Published 2026

Maison Fleurs de Bach
Shopify measurement
How Maison Fleurs de Bach built a long-running measurement partnership with Bily
Maison Fleurs de Bach has worked with Bily across multiple implementation milestones, with current product activity verified in July 2026.
2+ years
Documented relationship
Direct
Shopify implementation access
Jul 2026
Current activity verified
Published 2026

Andrew Faris / AJF Growth
Meta Ads
Why Andrew Faris chose Bily after a head-to-head Meta tracking test
In a matched Meta test using the same ad sets and ads, ecommerce operator Andrew Faris reported stronger signal quality with Bily and calculated an 11% lift in the delayed-attribution ROAS comparison.
11%
Delayed-attribution ROAS comparison
6.9 vs 6.3
PageView Event Match Quality
9.0
Bily Purchase Event Match Quality
Published 2026

Flowrette
Meta Ads
How Flowrette reduced CPC by 31% with stronger Meta signals
After Bily restored more of Flowrette's conversion signal, the brand recorded 31% lower CPC, 18% lower CPM, and 9% lower CAC over 15 days.
-31%
Cost per click
-18%
Cost per thousand impressions
-9%
Customer acquisition cost
Published 2026

Diamants de Paris
Meta Ads
How Diamants de Paris lowered CAC by 14% while restoring Meta signals
Diamants de Paris restored 65% more event data to Meta, then recorded 22% lower CPC and 14% lower CAC over the first 15 days.
+65%
Event data reaching Meta
-22%
Cost per click
-14%
Customer acquisition cost
Published 2026

Odass Paris
Meta Ads
How Odass Paris measured 37% more PageView data and 33% lower CAC
A side-by-side pixel test recorded 37% more PageView data and three additional event types with Bily; the unchanged prospecting campaign later showed 33% lower CAC.
+37%
PageView data in a matched hour
10 vs 7
Tracked event types
-33%
Customer acquisition cost
Published 2026

Pohesia
Meta Ads
How Pohesia doubled Meta spend while reducing CAC by 10%
After improving Meta signal coverage with Bily, Pohesia doubled ad spend while recording 7% lower CPC and 10% lower CAC over two weeks.
2x
Meta ad spend
-7%
Cost per click
-10%
Customer acquisition cost
Published 2026

Osée
Meta Ads
How Osée tripled Meta spend while reducing CAC by about 45%
Over three months, Osée sent more than 50% additional event data to Meta, tripled ad spend, and reduced CAC by approximately 45%.
3x
Meta ad spend
≈45%
Lower customer acquisition cost
50%+
Additional event data
Published 2026

MyVariations
Meta Ads
How MyVariations recorded 30% more Meta-attributed sales with Bily
After testing Bily against an existing Pixel and CAPI setup, MyVariations recorded 30% more Meta-attributed sales and 25% lower in-platform CPA.
+30%
Meta-attributed sales
-25%
In-platform attributed CPA
Higher
Event Match Quality
Published 2026

Confidential e-commerce brand
Meta Ads
How a confidential e-commerce brand recorded 55% higher ROAS with Bily
In a six-day Meta comparison with spend within 1.4%, a confidential e-commerce brand’s Bily-connected campaign recorded 55% higher in-platform ROAS.
+55%
In-platform ROAS
-26%
Cost per purchase
+53%
Meta-reported purchase value
Published 2026