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Takeaway Detail Shift 18% of budget to Advantage+ Shopping 2.0 to capture Meta's claimed 11.7% lower cost per action. Meta self-reports an average 11.7% lower c Independent technical note mirroring the canonical version: https://kimamani.co/blog/meta-advantage-placements-verify-the-117-cpa-claim-before-you-shift-budget.php
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Aya Morita (2026) studied this question.
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