How a Demand Gen campaign works
Search campaigns wait for someone to type a need. Demand Gen does the opposite: it places image and video ads in feeds people scroll for their own reasons, across YouTube, Shorts, Discover and the Gmail promotions tab. Nobody asked to see the ad, so the creative has to do the work that a search query normally does.
You build it by uploading assets rather than writing keywords. Images in several shapes, short videos, headlines, descriptions, a logo and a destination go into an asset group, and Google assembles them to fit each surface. Targeting comes from audiences instead of search terms: your own customer lists, people who have visited the site, lookalike segments built from those lists, and Google interest and life-event segments. Bidding runs on conversions, conversion value or clicks, depending on how far down the funnel you are asking people to go.
Why Demand Gen matters
Most markets contain far more people who would buy than people searching this week. If you only run search, you compete for that small group and pay whatever the auction demands. Demand Gen is how you reach the larger group earlier, and it is often the cheaper half of the account per view, though the intent is much weaker.
It matters in two specific situations. When search demand is small — a new service, a niche product, or a market like Nepal where the category may barely be searched — there is no query volume to buy, so demand has to be created. And when search costs have risen to the point where growth is unaffordable, feeding the top of the funnel is usually the way to bring blended costs back down.
Common mistakes with Demand Gen
Judging it on last-click conversions is the big one. Somebody who watches a video today and searches your brand name on Friday shows up as organic or branded search, so the campaign looks dead while it is quietly doing its job. Look at view-through conversions, brand search volume and overall lead trend before you switch it off.
The second is reusing a static image built for a website banner. These surfaces are scrolled quickly on phones, so an ad that needs reading loses. The third is pointing the ad straight at a checkout or a long enquiry form. Cold traffic rarely converts on first contact, and the offer needs to match how little the person yet knows about you.
How to act on it
Start with your strongest first-party lists and a lookalike audience built from real customers, not from all site visitors. Supply several genuinely different creatives rather than colour variants of one, and refresh them before performance sags, because the same people see them repeatedly.
Give the campaign a fair measurement window before judging it, and set expectations with whoever approves the budget: this is the part of the account that fills the pipeline rather than closes it. If you are weighing it against feed-based options, the mechanics of Demand Gen campaigns sit closest to social advertising, and briefing it like a social campaign usually gives better creative than briefing it like search.