Google Merchant Center Feed Tightens — Mandatory Material, Dimensions, And Weight for Furniture; Missing Parameters Reduce AI Overview Visibility Google has quietly but significantly tightened its Merchant Center Feed quality policies, with particular impact on furniture and home furnishings categories. Effective as of the 2026 policy updates, complete material breakdown, precise dimensions, and accurate weight parameters are no longer optional recommendations — they have become mandatory compliance requirements for furniture listings. Products missing these core attributes face a substantial reduction in exposure across AI Overviews, AI Mode, and Gemini Shopping surfaces.