Negative keywords prevent ads from serving for searches that do not match the business. Review the search terms report for irrelevant products, jobs, education, support requests, locations, price expectations, and other intent the company cannot serve. Understand why a term is irrelevant before blocking it; a word that looks unusual can still belong to a valuable customer journey.
Choose Match Types Deliberately
Negative broad, phrase, and exact match do not behave exactly like their positive-keyword counterparts. Use the narrowest rule that reliably blocks the unwanted pattern without removing valuable variations. Check singulars, plurals, close variants, and multiword meanings. When a word can signal both useful and irrelevant intent, use phrase or exact exclusions and inspect the resulting traffic before expanding the block.
Organize and Govern Lists
Apply negatives at the campaign, ad-group, or shared-list level according to scope. Keep universal exclusions separate from product, geography, and funnel-specific lists. Name lists clearly, record important changes, and review conflicts with active keywords. Coordinate across search, shopping, and automated campaign types because visibility and control can differ by format.
Protect Quality While Preserving Learning
Evaluate negatives using spend, clicks, conversions, lead quality, sales outcomes, and strategic relevance. Do not block a theme solely because it has not converted in a small sample. Revisit lists when products, pricing, service areas, or customer definitions change. A good negative-keyword process reduces obvious waste while preserving enough query coverage for the account to discover valuable demand.
Put the Guidance into Practice
Turn the recommendations into a documented operating plan with a named owner, review date, and decision criteria. Capture the starting conditions before making major changes, then compare results against qualified business outcomes rather than surface-level activity alone. Share the plan with the people responsible for creative, campaigns, analytics, sales follow-up, or content so execution stays consistent. Keep what produces useful evidence, revise what creates friction, and document the learning for the next cycle.