Figures are as reported in the Google Ads account for the comparison windows named in this study. Conversion attribution follows the settings configured on that account; we do not apply a separate model here.

SEO title: eBay European Shopping — WeAdU

Client

eBay operates a global, multi-category online marketplace connecting buyers and sellers. This case study covers its European Google Shopping campaigns.

Challenge

The goal was to scale new-customer acquisition across more than 10 European countries without losing efficiency on an already high-volume, highly automated account.

Approach

WeAdU built a proprietary campaign-automation system to manage bidding and structure at very high scale across eBay's European Google Shopping campaigns, extending coverage to more than 10 European countries.

Results

Comparing H1 2007 (Jan–Jun) to H2 2007 (Jul–Dec), WeAdU delivered:

+332.00% new-customer conversions — 12,500.00 → 54,000.00.
+20.01% ROAS — 5.01× → 6.01×.
−11.12% CPA.
+6.71% value per conversion.

By scaling its proprietary automation across more than 10 European countries, eBay more than quadrupled new-customer conversions while improving both ROAS and acquisition cost.