Demand Gen Campaigns: What They Are and When to Use Them

Demand Gen is a discovery-surface campaign type built for people who are not searching for anything yet, and running it like a cheaper Performance Max or a modern Display campaign wastes the creative and audience inputs it actually needs. This settles what the format does, what it costs in setup effort, and when a small account is better off leaving it alone.

What is a Demand Gen campaign, actually?

Demand Gen runs across YouTube in-feed, YouTube Shorts, Discover, and Gmail, the surfaces where people scroll instead of typing a query. It replaced Discovery campaigns and adds richer visual formats, swipeable carousels, and vertical video built for feed browsing. The campaign optimizes toward the engagement or conversion goal you choose, not toward reach or raw impressions.

Structurally it groups creative into asset groups the way Performance Max groups assets, one set of images, video, and text per audience or offer, rather than the ad-group-plus-keyword structure a Search account uses. That difference matters when you plan account naming and reporting, since a Demand Gen asset group is not the same unit as a Search ad group and should not be forced into the same reporting rollup.

Google's overview of the format is in the Demand Gen campaigns help center, which lists the eligible surfaces and the asset requirements for each one.

How is Demand Gen different from Performance Max?

Performance Max spans nearly all Google inventory, Search, Shopping, Display, YouTube, Discover, and Gmail, and the algorithm decides where the budget lands based on the goal you set. Demand Gen is scoped only to the visual, discovery-style surfaces, so you know exactly where impressions can serve before the campaign even starts learning. See Performance Max versus Search campaigns for the inventory boundary in more detail.

Because Performance Max already reaches YouTube and Discover on its own, running Demand Gen alongside it without separating the audience or the offer usually duplicates spend on the same impressions instead of adding new reach.

How is Demand Gen different from Display?

The Display Network places banner and responsive ads across millions of third-party sites and apps, mostly bought for reach and frequency. Demand Gen is confined to Google-owned feeds, uses richer native formats such as vertical video and swipeable carousels, and is built to be judged on a conversion action rather than viewability. The two are not interchangeable line items in a media plan, and the leakage patterns differ too, see where Display and YouTube budget actually goes.

What creative and audience inputs does it need?

Demand Gen needs enough creative variety to fill every surface it serves on, plus an audience signal to point the algorithm's lookalike expansion in a useful direction rather than a random one.

• At least five image assets across 1:1, 4:5, and 9:16 aspect ratios, since Shorts and Discover crop differently than in-feed YouTube.
• Video assets in both landscape and vertical orientation, or clean source images the system can animate if no video exists yet.
• Multiple headlines and descriptions, written for a scroll instead of a search result.
• An audience signal built from customer lists or site visitors, see Customer Match setup, which seeds the algorithm without hard-limiting delivery to that list.

Why shouldn't Demand Gen be measured on last-click?

Demand Gen sits upper or mid funnel. Someone sees a carousel ad in Discover, does not click, and converts later through a branded search or a direct visit. A last-click model credits the search term or the direct channel and reports Demand Gen as doing nothing, even when it started the path.

Judge it on assisted paths and data-driven attribution, not the conversions column alone. Cross-check against GA4 key events versus Google Ads conversions so the two systems are not simply disagreeing about counting the same thing, and read how modeled conversions fill the gap left by consent choices on these upper-funnel touches. Google explains the model in the attribution models help page.

When should a small advertiser skip Demand Gen?

Skip it if the account cannot produce five or more distinct image variants and at least one video, since a thin asset set caps how many surfaces the campaign can actually serve on. Skip it if there is no remarketing or customer list worth feeding in as an audience signal, since the algorithm then starts cold on a format built to reward a warm one. And skip it if the budget cannot survive a multi-week learning period without pulling money that Search or Performance Max is already converting reliably, see how much to spend on Google Ads for the floor a new campaign type needs before it is worth testing.

This is common in niche B2B accounts with no product photography, no explainer video, and a buying cycle too long for a scroll-based ad to influence in one sitting. An account in that position is better served putting the same hours into a Search or remarketing build-out that already has a measurable path to a conversion, and revisiting Demand Gen once there is creative and list volume to feed it.

Demand Gen earns its budget only once you can feed it real creative variety and an audience signal worth expanding on, and its results have to be read as assisted paths, not last-click conversions.