Keyword Planner can help you build a new Search Network campaign by:

Multiplying keyword lists together is a core feature in Keyword Planner that helps you build a new Search Network campaign by automating the generation of extensive keyword combinations. This function allows advertisers to take separate lists—such as product types and geographic modifiers—and combine them into every possible permutation. Mechanically, this works by performing a cross-multiplication of terms, instantly creating long-tail keywords that might be tedious to brainstorm manually. It fits the scenario of building a new campaign because it provides a foundational list of search terms complete with historical volume and forecast data. By using this tool, you can quickly identify which combinations are likely to drive the most traffic, helping you structure your ad groups effectively from the start. This process ensures comprehensive coverage of the Search Network, allowing your new campaign to capture diverse user intents through systematically generated keyword variations.