Guardrails and Insights
Steer the automation.
Why Guardrails Matter
PMax automation will optimize toward whatever you tell it to value, including the wrong things. Guardrails keep automation from wasting budget on low-quality conversions, brand traffic, or irrelevant placements.
The advanced job is not pulling manual levers; it is shaping the boundaries the machine operates within.
Brand Exclusions
By default PMax can claim brand searches you would have won organically or via cheap brand Search campaigns, inflating its reported ROAS.
Apply account-level brand exclusion lists so PMax focuses on incremental, non-brand demand. This makes its true performance visible.
Brand exclusion setup:
Tools > Shared library > Brand lists
add your brand + common misspellings
apply to PMax campaign
effect: PMax stops bidding on brand termsAll lessons in this course
- What Is Performance Max
- Asset Groups and Signals
- Smart Bidding Strategies
- Guardrails and Insights