Paid Search
Performance Max negative keywords: more control, better guardrails
Campaign-level exclusions offer useful control. Build them from business rules and evidence, not a fear of automation.
Growth Gearshift3 min read
On January 23, 2025, Google announced that campaign-level negative keywords for Performance Max were rolling out to all advertisers over the following weeks. That is a meaningful control for businesses that want to exclude unsuitable or irrelevant searches. It was a rollout announcement, not a statement that every account had instant access that day.
Negative keywords are not a replacement for sound conversion goals, campaign structure, or reviewing the wider inventory a Performance Max campaign uses. Google’s documentation specifies that these exclusions apply to Search and Shopping inventory, not every placement across the campaign.
Begin with a business rule
Start by defining traffic the business deliberately does not want. Examples include searches for a service you do not provide or an offer you cannot honor. Then review the available search-term evidence in context. A term that looks unfamiliar is not necessarily irrelevant.
Document the reason for each exclusion. This makes it easier to distinguish a real relevance or suitability issue from an instinctive attempt to make an automated campaign behave like a manually selected keyword list.
Consider what an exclusion could block
A broad exclusion may remove useful searches that contain a word but express a relevant need. Review the full query, choose an appropriate match type, and start with a narrow set of justified changes. Check the controls actually available in your account rather than assuming all rollout details are identical.
Any impact estimate is a planning aid, not proof of what will happen. Avoid stacking a large new exclusion list on top of simultaneous budget and conversion-goal changes; it becomes difficult to identify which change affected performance.
Maintain a short change log
Give one person responsibility for reviewing and maintaining exclusions. A list with no owner tends to grow while the reasons behind it disappear.
- Record the term, match type, business reason, and date added.
- Note the inventory and campaign the change is intended to affect.
- Review relevant performance and search-term evidence after the change.
- Remove or revise outdated rules when products, locations, or offers change.
Separate local needs from wider policies
A product line with distinct positioning may need campaign-specific exclusions. A restriction that applies throughout the business may belong in broader account governance. Avoid copying lists across every campaign without a clear reason; duplication makes later review harder.
Negative keywords should protect the business from traffic it has chosen not to pursue. They should not become a way to reject all exploratory demand or compensate for poor lead qualification. Pair exclusions with reliable conversion data and clear customer goals.
As of this article’s February 2025 date, the useful response is measured: check your account for access, implement narrowly, and judge the changes against customer and commercial outcomes. More control helps when there is a clear job for it to do.
The takeaway
Use negative keywords as deliberate business guardrails. Every exclusion should have an owner, a reason, and a review date.
Sources & further reading
- Google — New Performance Max features, January 23, 2025
- Google Ads Help — Performance Max negative keywords (living documentation)
This article uses an editorial archive date. Platform announcements are discussed in their historical context; linked help pages may change over time.