Georgia Carapetis is Head of Marketing at MerchantFlow, helping ecommerce brands stop obsessing over ROAS and start focusing on profit. She writes about Google Shopping, contribution margins, and scaling without shrinking your margins.
If you're deciding between Google Shopping and Performance Max in 2026, the real question is not which campaign drives more revenue. It's which of the two protects your profit. In this guide, we'll break down how Standard Shopping and Performance Max impact contribution margin,
You're spending $40,000 per month on Google Shopping. ROAS is 3.2x. Revenue looks strong. Your ads manager says things are scaling. But your accountant tells you margins are down 6% this quarter. What happened? This is the most common Google Shopping profitability problem in ecommerce right