← Advanced training · Module 14 — Shopping and Merchant Center in depth — feed, catalogue and campaign masterclass
Shopping in depth IV: campaign architectures — standard vs PMax with a feed, priorities, partitions and per-product bidding
⏱️ 14 min read · 🛒 Shopping ⚙️ Performance Max 💰 Bids and budgets · updated on 2026-08-22
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The three real architectures (standard Shopping with priorities, PMax with a feed, hybrid) and when each one wins; the mechanics of high/medium/low priority with cascading negatives to separate generic, product and brand queries; partitions by product_type, brand, custom labels and item ID; the "Everything else" group; ROAS by margin and by band; the long-tail, new-arrivals and clearance campaigns; per-product bidding; and the four mistakes that sink Shopping accounts.
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