A broken Google Shopping feed was silently capping this ecommerce brand's ROAS at 2.5x despite months of bidding adjustments. A feed audit revealed missing attributes, misaligned titles, and pricing errors that were limiting auction eligibility on their highest-margin products. After a complete feed rebuild including title rewrites, supplemental feed setup, custom labels, and PMax restructuring, Shopping ROAS doubled to above 5x within 60 days and impression share on top products climbed from below 20% to above 55%. This case study walks through the diagnosis, the specific fixes, and the structural lessons for any brand running Google Shopping or Performance Max at scale.
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