Campaign Types Decoded — The Practitioner’s Decision Framework

The Problem

Google now offers Search, PMax, Display, Video, Demand Gen, App, Shopping, and Smart campaigns. Each has different objectives, controls, and automation levels. New advertisers are overwhelmed. Experienced advertisers are confused about which campaigns overlap and how they interact. Google’s own documentation lists objectives like Sales, Leads, and Traffic across multiple campaign types with near-identical descriptions.

The Framework I Use After $48M

Start with your answer to one question: Do you know what your customer searches before they buy? If yes, start with Search campaigns targeting those queries. Search captures existing demand—people actively looking for what you sell. This is the highest-intent, most controllable channel.

Layer Performance Max on top of Search only when Search is performing well and you want incremental volume. PMax accesses all of Google’s inventory from one campaign, but you trade control for reach. Never launch PMax without conversion tracking and at least 30 days of Search data to train the algorithm.

Use Demand Gen when you have strong visual creative and want to generate new interest—YouTube, Discover, Gmail placements. It is awareness and consideration, not direct response. If your only metric is CPA, Demand Gen will disappoint.

Display campaigns are for remarketing and broad awareness at low CPMs. They are not for direct response prospecting unless you have massive volume goals and very flexible CPA targets.

Video is brand building. Unless you are running Video Action Campaigns with strong conversion data, treat YouTube as a top-of-funnel investment measured by view completion and brand lift, not last-click conversions.