Google Demand Gen: AI Drives 6% More Conversions

Google’s Demand Gen campaigns are a big deal because they finally use AI to pull all your visual advertising, across YouTube, Gmail, Discover, and Display, into one place. Instead of running fragmented campaigns, you get a much simpler setup that uses machine learning to follow the customer journey. The goal’s simple: get more demand and conversions by putting great visuals in front of people where they’re already spending time. So, how do you actually set up and optimize one of these things?

Setting Up Your First Demand Gen Campaign

You’ll start a Demand Gen campaign right inside the Google Ads interface you already know, but the options are different. The whole process is built around telling the AI exactly what you want, your marketing objective, so it knows what to optimize for.

Step 1: Campaign Creation and Objective Selection

1. Navigate to Google Ads and get logged in.

2. In the menu on the left, click Campaigns.

3. Hit the blue + New campaign button, and pick New campaign.

4. Now you have to pick your campaign objective. For Demand Gen, you’ll be looking at Sales, Leads, Website traffic, or Product and brand consideration. You have to pick the one that actually matches your business goal, because this choice is everything. It tells the AI what success looks like.

5. After picking your objective, select Demand Gen as the campaign type. Google will show you a little confirmation that it runs across YouTube, Gmail, Discover, and Display. Click Continue.

Pro Tip: The AI isn’t a mind reader. It needs a single, clear objective to do its job well, so if you try to chase leads and brand awareness in the same campaign, you’ll just confuse the algorithm and get mediocre results for both. A Statista report from 2024 basically confirms this, showing that campaigns with a single, sharp focus always beat ones with fuzzy goals on ROI.

Step 2: Budget, Bidding, and Location Settings

Okay, now you set the budget and location, which are basically the guardrails you give the AI to work within.

1. Campaign Name: Give it a name you’ll recognize later, like “DemandGen_Q3_ProductLaunch_Leads”. Don’t just call it “Demand Gen 1”.

2. Bidding Strategy: Google Ads suggests a strategy based on your objective. If you picked Sales or Leads, it’ll probably push Maximize conversions or Target CPA. For Website traffic, it’ll be more like Maximize clicks. Just stick with the recommended strategy to start, especially ‘Maximize conversions,’ because it gives the AI the most room to learn what works.

3. Budget: Set your Daily budget. And be realistic about it. Don’t cheap out, because if the budget’s too low, the AI can’t buy enough data to learn, and your campaign will never get out of the starting blocks. If you have a target CPA in mind, a good starting daily budget is 3-5x that number.

4. Locations: Define where you want your ads to show up. You can go as broad as a country or as specific as a postal code, so if you’re a local service in Atlanta, Georgia, you could target “Atlanta, GA, USA” or even drill down into neighborhoods like “Buckhead” or “Midtown.”

5. Languages: Pick the languages your customers speak. This makes sure your ads are shown to people who can actually read them.

Common Mistake: The most common mistake I see is under-budgeting. A campaign with amazing creative will still completely fail if the daily budget is so low that the AI can’t afford to run enough tests to find the right people on the right placements. It just gets stuck in the learning phase forever, burning cash with inconsistent results.

Crafting Your Ad Groups and Creative Assets

This is where Demand Gen is completely different from search ads, because it lives and dies by its visuals. Your images and videos are everything, because they have to work and feel native across YouTube, Gmail, Discover, and the Display network.

Step 3: Audience Targeting

Here’s where you tell the Google AI who to go after. Demand Gen has some really solid targeting options.

1. Audience Segments: You can pick from a few types:

   • Custom segments: You can build your own audiences based on what people search for, apps they use, or sites they visit. For example, a personal injury firm could create a custom segment that targets anyone who searched for “injury lawyer Atlanta.”
   • Your data segments: This is your remarketing lists, where you can upload customer emails or target past website visitors. Honestly, your own data is almost always your best-performing audience segment.
   • Lookalike segments: The AI takes your data segments and builds a new audience of people who look and act just like your existing customers.
   • Interests & detailed demographics: Target people based on their known hobbies and demographic info.
   • In-market segments: Go after people who are actively shopping for products or services like yours right now.

2. Demographics: You can layer on age, gender, parental status, and household income on top of your audience segments to get even more specific.

Pro Tip: My advice? Start with broader audiences and let the AI do the heavy lifting of finding who converts. Once you see performance data rolling in, for example, if you notice your broad ‘lifestyle’ audience is getting all its conversions from 25-34 year olds, then you can break that specific demographic out into its own ad group with more tailored creative and a bigger slice of the budget.

Step 4: Ad Creation (Image, Video, and Carousel Ads)

You need a mix of creative assets for this to work. You’ll build all these within the ad group itself.

1. Ad Type Selection: You’ll see options for Image ads, Video ads, and Carousel ads. I always tell my clients to build all three types in every single ad group because it gives the AI a full toolkit to play with, letting it figure out which format works best for which person on which platform.

2. Image Ads:

   • Upload Images: Give it plenty of high-quality images in different shapes (1.91:1 field, 1:1 square, 4:5 portrait are key). Google wants at least 5 different ones.
   • Logos: Upload your logo in 1:1 square and 4:1 field formats.
   • Headlines: Write up to 5 short headlines (30 chars max).
   • Long Headlines: Write up to 5 long ones (90 chars max), which show up in places like the Discover feed.
   • Descriptions: Write up to 5 descriptions (90 chars max).
   • Business Name: Your brand.
   • Call to Action (CTA): Pick one from the dropdown menu (like “Learn More” or “Shop Now”).
   • Final URL: The landing page where people go after they click.

3. Video Ads:

   • YouTube Video: Link to a YouTube video you already have or upload one. For video, think short and engaging. Aim for 15-30 seconds, which is the sweet spot for YouTube Shorts and in-feed placements where people have zero attention span.
   • Headlines, Descriptions, Business Name, CTA, Final URL: Same stuff as the image ads.

4. Carousel Ads:

   • Cards: You can add between 2 and 10 cards, and each card gets its own image, headline, and optional description. Use Carousel ads to show off a range of products or features, since they work really well in the Gmail and Discover feeds.
   • Headlines, Descriptions, Business Name, CTA, Final URL: Same fields again, some apply to the whole ad, some are per-card.

Editorial Aside: Please, don’t just upload your old, tired display banners from 2018. Demand Gen needs content that feels native to the platform it’s on, which means visually rich assets. I’m telling you, a blurry image or a video with tinny audio will absolutely destroy your campaign’s performance, and it doesn’t matter how great your targeting is. Investing in good creative is the one thing that will give you an edge. I have seen clients literally double their conversion rates just by swapping out stale creative for new professional photos and copy that actually talks about benefits.

Monitoring and Optimization in 2026

Your campaign is live. Now the real work begins: continuous improvement. The AI is smart, but it’s not a ‘set it and forget it’ tool. It needs your strategic input.

Step 5: Performance Monitoring

You have to get in the habit of checking your campaign’s progress inside Google Ads.

1. Overview: The overview tab gives you that quick, high-level snapshot of clicks, impressions, conversions, and cost. You’re looking for trends. Is it getting better or worse?

2. Ad Group Performance: Drill down into your ad groups to see which audiences are actually making you money. This is where you decide who gets more budget and who gets cut.

3. Ad Performance: Look at the individual ad assets. Google literally gives them a “Performance rating” (like “Best,” “Good,” or “Low”), so you know exactly which headlines, images, and videos the AI is favoring and which it’s ignoring.

4. Placements: Even though the placements are mostly automated, you can still see where your ads are showing up. This report can sometimes surface some real surprises, revealing opportunities or places where your brand message is falling flat.

Expected Outcome: You have to be patient for the first 7-14 days while the campaign is in its “learning phase.” Performance will be all over the place as the AI figures things out, so don’t make any big changes. After that, you should see things stabilize. The goal is to beat old Display campaigns, and Google’s own benchmarks from early 2026 show that a well-run Demand Gen campaign can achieve up to a 6% higher conversion rate per dollar, particularly if you’re using good video assets.

Step 6: Optimization Strategies

Based on what you see in your reports, you make smart changes to get more efficient.

1. A/B Test Creative: Continuously. If a headline or image has a “Low” rating and a bad click-through rate, kill it and swap in something new to test. Always be testing.

2. Refine Audiences: If one of your audience segments is killing it, think about giving it its own dedicated ad group with hyper-specific messaging and more budget. Conversely, if an audience is just burning money without results, try to refine its targeting or just pause it.

3. Adjust Bids and Budget: If your campaign is hitting its CPA target and you want more volume, start incrementally increasing your daily budget. If you’re consistently blowing past your target CPA, review your creative and audience targeting first before you start slashing bids so aggressively that you choke out the campaign’s reach.

4. Landing Page Optimization: The best ad in the world can’t fix a bad landing page. Make sure your page is fast, mobile-friendly, and has a clear call to action that matches the ad they just clicked. Use tools like Google Analytics 4 to track what people are actually doing once they get there.

Demand Gen campaigns are a powerful way to consolidate your advertising across Google’s platforms, using AI to do the heavy lifting. By setting clear objectives, feeding the machine high-quality creative, and constantly optimizing based on performance data, you can unlock some serious demand generation potential. It’s a big part of the overall shift towards AI-driven, integrated advertising, and for more on that whole trend, the eMarketer’s 2025 report on AI Marketing is worth a read.