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← Advanced training · Module 4 — Smart Bidding II — portfolios, cross-mode, the judge and anomalies

Bid strategy experiments: comparing bidding properly before changing an account

⏱️ 9 min read · 💰 Bids and budgets 📐 Measurement · updated on 2026-08-22

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How to design a bid strategy experiment (CPA vs ROAS, a different target, portfolio vs its own strategy, with and without broad match, with and without AI Max), the traffic split, the duration set by latency and volume, how to read significance and effect size, the mistakes that invalidate an experiment, and how to take the winner into production without resetting everything.

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