August 23, 2026 · 8 min read
Performance Max Brand Exclusions
Keep Performance Max away from selected brand queries, understand the inventory affected, and preserve a clean split between brand and prospecting.

Performance Max brand exclusions stop a campaign from serving on searches associated with selected brands across covered inventory. They are useful when brand traffic belongs in a separate campaign or a competitor brand must be avoided. They are broader than listing spellings as negatives, but they can also reduce reach and require verification.
What does a Performance Max brand exclusion cover?
Google's current brand settings guide says Performance Max brand exclusions prevent serving for queries associated with selected brands and apply to Search and Shopping inventory. Check the live campaign settings because available controls and inventory details can change.
A brand list represents the entity, not merely one exact keyword. It can cover variants users associate with that brand. That makes it more suitable for brand control than attempting to enumerate every misspelling, but also means the proposed brand deserves careful review.
When should you exclude your own brand?
Exclude your brand when a dedicated Search campaign is intentionally responsible for branded demand and you need a clearer view of Performance Max prospecting. First confirm that the brand campaign has appropriate coverage and budget. Otherwise the exclusion can remove valuable traffic without a reliable campaign ready to catch it.
Keep the financial comparison honest with a brand versus non-brand budget split. Do not present an apparent Performance Max efficiency drop after exclusion as a failure without separating the traffic mix.
What is the difference from negative keywords?
Negative keywords exclude text according to negative match rules. Brand exclusions use Google's brand library and associated variants. Account-level negatives also have a much broader account scope. Use account-level negatives only when the query is unwanted everywhere, not just inside Performance Max.
Google provides current steps to apply brand exclusions. Preview the affected campaigns and Shopping setting before applying the change.
How do you validate the change?
- Record the brand list, campaign, date, and inventory setting approved.
- Check that the intended brand and relevant variants are represented in the library.
- Review search-category and query insights after the change without assuming perfect visibility.
- Monitor brand Search coverage, Performance Max mix, conversions, and total account outcomes.
- Keep a rollback plan if reach falls outside the intended brand traffic.
What should an AI manager recommend?
It can identify branded traffic, compare campaign roles, and stage a brand exclusion with a before-and-after measurement plan. Applying or removing the exclusion is a campaign write. The approval should name the brand list, campaign, Shopping behavior, expected routing, and rollback. It should not merely say 'optimize PMax.'
Review the broader Performance Max optimization guide and keep search themes separate from exclusions.