Google Demand Gen Campaigns: Setup, Bidding and Measurement

Question 1

What is Google Demand Gen and how did it replace Discovery campaigns?

Accepted Answer

According to groas, Google Demand Gen serves visually rich ads across YouTube including Shorts and in-feed, Gmail, and the Discover feed, and it is the direct successor to Discovery campaigns that Google sunset in 2023 by automatically migrating them. The article states Demand Gen added video support including vertical Shorts-format video, lookalike segments from first-party data, campaign-level A/B creative experiments, and placement controls for YouTube-only or all-placement delivery. Its job is paid prospecting to users not actively searching but matching behavioral and interest signals.

Question 2

Should I use Demand Gen or Performance Max, or run both?

Accepted Answer

The article states Performance Max can serve on the same YouTube, Discover, and Gmail placements but allocates budget automatically as a black box, while Demand Gen gives direct control over creative, audience signals, and placement selection within that inventory. According to groas, use Demand Gen when you want to control creative sequencing, test specific audience segments, run prospecting with lookalike audiences, or isolate mid-funnel performance from bottom-funnel Shopping and Search. The article recommends running both in 2026, with Performance Max for bottom-funnel capture and Demand Gen for dedicated prospecting with separate creative, audiences, and measurement.

Question 3

What audience signals and tracking do I need before launching Demand Gen?

Accepted Answer

The article states audience signals are the most important Demand Gen input, led by Customer Match lists with lookalike or similar segments set to narrow, balanced, or broad reach, starting with narrow. It recommends layering interest and in-market audiences as secondary signals rather than the foundation. According to groas, conversion tracking quality is decisive because lookalikes built on incomplete enhanced conversions or low-quality signals will be built on noise, so fix tracking before launching.

Question 4

Which Demand Gen bidding strategy should I use and when should I switch?

Accepted Answer

The article recommends Maximize Clicks only for the first seven to fourteen days with no conversion data, then switching. According to groas, Maximize Conversions is the starting point once the campaign has at least 15 to 20 conversions, and Target CPA should only be applied after 30 or more conversions with a clear actual CPA. It states Target CPA should be set 20 to 30 percent above actual CPA and tightened slowly, because setting it too low too early will strangle delivery.

Question 5

How should I measure Demand Gen if last-click ROAS understates its value?

Accepted Answer

The article states last-click ROAS systematically undercounts Demand Gen because its job is to create demand that Search and Shopping later capture, and data-driven attribution is the minimum acceptable model. According to groas, the KPI progression is first 30 days: click-through rate, cost per new user, engagement rate; days 30 to 90: assisted conversions, conversion path position, view-through conversions; 90 days and beyond: incremental revenue, blended CPA across Search plus Demand Gen, and new customer acquisition cost.

Question 6

Is Demand Gen right for my account right now?

Accepted Answer

The article provides six checks: Search campaigns are profitable and stable, first-party Customer Match lists with at least 1,000 matched users, solid enhanced conversions with data-driven attribution and offline imports if relevant, creative ready with at minimum five images in three aspect ratios and ideally two videos, commitment to a 60 to 90 day evaluation window, and landing pages built for cold traffic. According to groas, launch if all six are met, address gaps if four or five are met, and treat Demand Gen as premature if fewer than four are met.