01 / 04Online store for haberdashery with its own laser production
Same ad spend, 33% more revenue from ads.
+33%
ad revenue at the same spend
Starting point (took over on Apr 28, 2026)
- For January to March 2026 the account reported a return of 3.32. The real figure was 1.66: every purchase had been counted twice from November 2025 to April 2026.
- Over those six months that added up to 500,856 CZK in revenue that never existed.
- A campaign on competitor names cost 5,944 CZK a month and brought not a single sale.
What I fixed
- Apr 29switched off the competitor campaign.
- May 21purchase tracking fixed, one purchase = one conversion.
- Jun 5new campaign structure built around margin, own production kept separate.
- Aug 13brought back 6,520 own-production products that had silently dropped out of ads after a category was renamed. Advertised products went from 1,532 to 7,645.
Result
- Ad spend+0.64%
- Jan–Mar 2026: 133,958 CZK, Jun–Aug 2026: 134,812 CZK
- Revenue from ads+33.22%
- Jan–Mar 2026: 222,349 CZK, Jun–Aug 2026: 296,205 CZK
- Return on ad spend (ROAS)
- Jan–Mar 2026: 1.66, Jun–Aug 2026: 2.20
- Cost of sale (ad spend ÷ revenue)
- Jan–Mar 2026: 60.25%, Jun–Aug 2026: 45.51%
From June to September, 23,775 CZK was not spent on the competitor campaign.
Compared periods: Jan–Mar 2026 vs Jun–Aug 2026
A note on the numbers: January to March revenue is corrected for the double-counted purchases. Winter months are seasonally stronger for this store, so the improvement is not explained by season.