Google Ads has quietly rolled out an important update to Performance Max: Data Exclusions are now available at the campaign level.
With this feature, advertisers can exclude their own first-party data from Performance Max campaigns. This includes:
- Website Visitor Lists (remarketing audiences)
- Customer Match Lists (CRM, email lists, etc.)
When applied, these exclusions fully prevent Performance Max from targeting users in those lists. This is a significant change, because the excluded audiences are not used as audience signals — they are completely removed from eligibility. In other words: this is true exclusion, not just guidance for the algorithm.
Why this matters
Until now, Performance Max had very limited control options when it came to audience overlap. Advertisers often struggled with:
- PMAX cannibalizing branded search or remarketing traffic
- Limited separation between prospecting and retention strategies
- Reduced transparency around who PMAX was actually serving ads to
With Data Exclusions, advertisers can now:
- Run PMAX strictly for acquisition by excluding all remarketing and customer lists
- Prevent overlap with Search, Display, or YouTube remarketing campaigns
- Improve budget control and measurement by keeping audience strategies clearly separated
Important notes
- Exclusions apply at the campaign level
- This impacts all inventory types within Performance Max
- Excluded lists are not used in learning, targeting, or optimization
This update brings Performance Max a step closer to being a more controllable and strategic campaign type, especially for advertisers working with complex account structures or full-funnel strategies.
Spotted by Callie Kessler