B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Dated
12%
12% -- conversion value increase for advertisers who upgraded Smart Shopping campaigns to Performance Max (2022)
Advertisers upgrading Smart Shopping campaigns to Performance Max during beta testing experienced an average 12% increase in conversion value.
- Observed during Beta testing
- Accompanied by matching or bettering Google Ads ROAS
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
12%
Unit
Percentage
Data Vintage
2022
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Score breakdown
Extraction
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
30
Freshness
95
Sources (5)
StoreYa
Primary
Tier B
https://blog.storeya.com/2022/02/performance-max/ ↗
Source Article
Automate Ads and Boost ROAS With Performance Max Campaigns
Performance Max or Google PMax is set to replace Smart Shopping and Local campaigns in 2022. Are you ready?
Leading eCommerce platforms such as Shopify, WooCommerce, and BigCommerce are already hard at work to support Google PMax’s new inventory insights and formats.
While building on Smart Shopping…
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https://www.searchenginejournal.com/
2026-08-18
amraandelma.com
https://www.amraandelma.com/
2026-08-18
Original Research
StoreYa
· Original study ↗
Segmentation
Industrymarketing
Cite this stat
Plain Text
advertisers who upgraded Smart Shopping campaigns to Performance Max: 12% conversion value increase. Source: StoreYa (2022). Via Lighthouse Intelligence -- https://lighthousedata.io/data/google-pmax-conversion-value-increase
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<blockquote cite="https://lighthousedata.io/data/google-pmax-conversion-value-increase" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>12%</strong> -- conversion value increase for advertisers who upgraded Smart Shopping campaigns to Performance Max<br><small>Source: StoreYa (2022) · <a href="https://lighthousedata.io/data/google-pmax-conversion-value-increase" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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