Set Up Demand Gen Campaigns to Auto-Generate. Ideas for better videos and a stronger channel

How to Set Up Demand Gen Campaigns to Auto-Generate YouTube Shorts Ads in Google Ads

At a glance

Google Ads Demand Gen campaigns can create, adapt, and distribute video advertising for YouTube Shorts using Google AI, supplied images, text, brand assets, existing videos, and automated creative settings. Advertisers can also use Demand Gen channel controls to restrict an ad group to YouTube Shorts, making it possible to combine automated creative production with Shorts-specific delivery. The main requirement is understanding that creative generation and placement selection are separate controls. Google AI can create vertical videos, but Shorts-only delivery requires the YouTube Shorts channel to be selected at the ad-group level. What Auto-Generating YouTube Shorts Ads Means in Demand…

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Google Ads Demand Gen campaigns can create, adapt, and distribute video advertising for YouTube Shorts using Google AI, supplied images, text, brand assets, existing videos, and automated creative settings. Advertisers can also use Demand Gen channel controls to restrict an ad group to YouTube Shorts, making it possible to combine automated creative production with Shorts-specific delivery. The main requirement is understanding that creative generation and placement selection are separate controls. Google AI can create vertical videos, but Shorts-only delivery requires the YouTube Shorts channel to be selected at the ad-group level.

What Auto-Generating YouTube Shorts Ads Means in Demand Gen

Demand Gen now provides several different ways to produce video assets automatically. Each method solves a different creative problem, so advertisers should distinguish auto-generated video ads, pre-generated videos, video enhancements, and Google Ads Video Builder.

The first method is auto-generated video ads. Google AI can use assets already supplied to a Demand Gen ad, including text, images, brand colors, and fonts, to create additional video ads in horizontal, square, and vertical orientations. The Videos option inside Asset optimization is enabled by default for eligible new campaigns and can be disabled if an advertiser does not want this automation.

The second method is pre-generated videos. When an advertiser creates an eligible image-based Demand Gen campaign, Google Ads can prepare video suggestions during campaign review. Google currently describes three suggested orientations, horizontal, vertical, and square. Advertisers can preview the results, change supported colors and fonts, deselect unwanted versions, and approve the selected creative before a video ad is created.

The third method is video enhancements. If an advertiser already has a video, Google AI can create additional vertical or square versions and shorter versions. Video enhancements are enabled by default but can be disabled. This route is useful when the source material is strong but was produced for horizontal video rather than the vertical Shorts feed.

Google Ads also provides Video Builder. Video Builder is more controlled than automatic generation because the advertiser selects a template, supplies scene text and images, adjusts creative settings, previews the result, and uploads the completed video. Video Builder can include colors, fonts, music, and voice-over settings.

These methods can work together, but they are not identical. Auto-generated video creates new ads from supplied assets. Video enhancements modify existing videos. Pre-generated video gives the advertiser suggested creative to approve. Video Builder gives the advertiser more direct control over construction.

Demand Gen and YouTube Shorts From Launch to 2026

Demand Gen began as Google's AI-assisted campaign type for creating demand across visual Google surfaces. Google announced Demand Gen in June 2023 as a new campaign solution designed to reach people through visual experiences and support activity from consideration through conversion.

The product expanded significantly after launch.

In 2024, Google introduced generative image capabilities for Demand Gen. Advertisers gained tools for producing image variations from prompts and existing creative assets. Those capabilities later became part of a broader collection of creative tools that includes image generation, image editing, video creation, text suggestions, and asset optimization.

A major change arrived in 2025. Google expanded Demand Gen channel controls globally, allowing advertisers to select individual Google surfaces. That change matters directly to YouTube Shorts advertising because advertisers no longer have to rely on automatic distribution across every Demand Gen surface.

Current Demand Gen channel options can include:

  • YouTube in-stream
  • YouTube in-feed
  • YouTube Shorts
  • Discover
  • Gmail
  • Maps
  • Google Display Network

The channel setting operates at the ad-group level. An advertiser that wants Shorts-only delivery can choose manual channel selection and retain only YouTube Shorts.

Demand Gen expanded again in 2026 as Google began moving standalone Google Display Ads into Demand Gen. The migration tool started rolling out to eligible advertisers in June 2026, bringing Google Display Network inventory into the same campaign environment as YouTube, Discover, Gmail, and Maps.

On September 24, 2026, Google announced additional Demand Gen updates, including one-click landing-page experiences for full-screen 9:16 image ads on YouTube Shorts. That update concerns image advertising rather than automatic video generation, but it shows how Demand Gen is becoming more closely connected with the Shorts experience.

Starting October 15, 2026, Google also began progressively introducing Channel Prioritization. Demand Gen can use prioritization between Google channels and the Google Display Network, although dedicated budget allocation controls are not currently supported for Demand Gen.

Prepare Conversion Tracking Before Building the Campaign

A Demand Gen campaign should begin with a defined business action because the selected conversion goals influence bidding, optimization, reporting, and the type of user Google Ads tries to reach.

For ecommerce, a primary action could be a purchase with conversion value. Lead-generation advertisers could use a qualified form submission, completed registration, booked appointment, or another meaningful action configured as a primary conversion.

Conversion tracking should be tested before significant spend begins. A campaign optimized for a weak event such as a basic page view can train toward people who generate that event rather than people likely to produce the real business outcome.

Google Ads currently offers Demand Gen campaign goals including Sales, Leads, Website Traffic, App promotion, YouTube reach, views and engagements, Local store visits and promotions, and campaign creation without goal guidance. Conversion goals are selected after the broader advertising goal.

The landing page should also match the creative promise. A short vertical advertisement often communicates one proposition quickly. Sending that traffic to a broad homepage can weaken the connection between ad intent and landing-page action.

Step-by-Step Setup for a YouTube Shorts-Only Demand Gen Campaign

A Shorts-focused Demand Gen campaign requires both normal campaign configuration and explicit channel selection. Uploading a 9:16 video alone does not restrict delivery to Shorts.

Start in Google Ads and create a new campaign.

Choose the advertising objective that reflects the result you want Google Ads to optimize. Select Demand Gen as the campaign type where required by the account workflow.

Name the campaign using a structure that makes reporting clear. A useful naming pattern identifies the campaign type, objective, audience, market, and creative concept.

Configure location and language settings carefully. Demand Gen supports these controls at either the campaign level or the ad-group level. Google's current setup documentation states that once campaign-level language and location targeting is published, it cannot be changed back to ad-group-level targeting.

Select the bidding strategy and budget.

Create the ad group and open the Channels setting.

Choose Let me choose rather than All Google channels.

Under YouTube, keep YouTube Shorts selected.

Deselect:

  • YouTube in-stream
  • YouTube in-feed
  • Discover
  • Gmail
  • Maps
  • Google Display Network

Google's current channel-control documentation specifically states that advertisers can configure Demand Gen to serve on YouTube Shorts. This corrects older guidance that described Demand Gen as automatically distributing ads across surfaces without Shorts-only control.

Next, configure the audience. Demand Gen can use custom segments, advertiser data, Google audience segments, demographic selections, and lookalike-related audience signals.

Decide whether optimized targeting should remain enabled. When optimized targeting is active, Google Ads can move beyond selected audience and demographic signals in an effort to find additional people likely to produce the campaign result. Google states that demographic expansion can occur when optimized targeting is enabled.

For a controlled audience test, tighter settings can make analysis easier. For a campaign centered on conversion volume, broader optimization can give the bidding system more opportunities.

Turn On Auto-Generated Video Ads

Auto-generated video ads allow Demand Gen to convert image and text assets into video ads without requiring the advertiser to produce every video externally.

For an eligible Demand Gen campaign, create or edit an ad and choose a single-image ad where the feature is available.

Supply strong source assets:

  • Clear image creative
  • Relevant headline
  • Description
  • Business name
  • Brand colors
  • Brand fonts where available
  • Final landing page

Open the Asset optimization area.

Check the Videos option. Google currently states that this option is enabled by default for new campaigns where the feature is available.

Google AI can then create additional video ads in multiple orientations using the supplied creative and brand information.

Automatic creation does not remove the need for advertiser review. Generated video should be checked for text accuracy, cropping, brand presentation, product details, pacing, audio, legal requirements, and advertising-policy compliance.

For a Shorts-only ad group, the channel control determines where the approved asset can serve. The vertical version is the most natural match for the Shorts feed.

Use Pre-Generated Videos When Starting With Image Ads

Pre-generated videos provide a review-first route for advertisers that have images and text but no finished video.

Google Ads can prepare video suggestions during campaign review when the creative meets the required conditions. Google lists the basic source set as one logo, two images, text assets that satisfy the minimum headline and description requirements, and one business name.

The campaign review screen can show three suggested video formats:

  • Horizontal
  • Vertical
  • Square

Advertisers can preview these videos before creating the video ad.

The workflow allows supported color and font adjustments. Individual suggestions can also be deselected.

After approval, Google Ads uploads the generated asset and creates a video ad.

This workflow is useful for advertisers who want Google AI to assemble existing brand material but still want a clear approval point before the video becomes an ad.

For Shorts campaigns, inspect the vertical version closely. Check whether the primary subject remains visible, text sits inside safe areas, product details remain readable, and the opening seconds communicate the main message without depending on later scenes.

Use Video Enhancements When a Finished Video Already Exists

Video enhancements are the better Demand Gen automation when an advertiser already has usable video footage but needs versions suited to other orientations or shorter viewing patterns.

Google Ads can produce vertical and square versions from horizontal source video. It can also produce shorter versions. Video enhancements are enabled by default and can be disabled from the ad settings.

This workflow can reduce the need to manually rebuild every existing video for 9:16 delivery.

A source video still needs to be designed with adaptive cropping in mind. Important faces, products, demonstrations, subtitles, pricing, and calls to action should not depend on the far left or far right edges of a horizontal frame.

An automatically reframed video should always be previewed before relying on it as the main Shorts creative. Automation can solve aspect-ratio production, but it cannot determine whether every brand-specific detail has the intended meaning.

YouTube Shorts Creative Specifications That Matter

YouTube Shorts ads perform inside a vertical, swipeable viewing environment, so asset dimensions, opening speed, readability, sound, and framing matter more than simply converting a horizontal file to 9:16.

Google recommends vertical 9:16 video for Shorts. For Demand Gen video assets, 1080 × 1920 pixels is the recommended HD resolution for a 9:16 asset.

Demand Gen accepts video assets starting at five seconds. Google notes that videos below ten seconds are not eligible for YouTube in-stream, although a Shorts-only campaign does not require in-stream eligibility.

For Shorts, Google recommends using video ads shorter than 60 seconds to match user viewing behavior. Google's current Shorts guidance also recommends 10 to 30 seconds for action-oriented creative. Some longer videos can be eligible for Shorts, so 60 seconds should be treated as a creative recommendation rather than a universal technical maximum.

Google also recommends using sound, including music, voice-over, or both, and considering text overlays. The creative should feel native to short-form viewing rather than like a horizontal commercial compressed into a vertical frame.

For Demand Gen creative generally, current specifications allow up to five videos per video ad. Google also supports horizontal, square, vertical, and 9:16 orientations.

Text assets should remain concise. Current Demand Gen specifications list headlines up to 40 characters, descriptions up to 90 characters, and a business name up to 25 characters.

The opening frames deserve special attention because Shorts users can move to the next item immediately. The product, person, problem, result, or main proposition should become understandable early.

Audience Targeting for Shorts Demand Gen Campaigns

Demand Gen audience selection provides the signals Google Ads uses to determine who should enter the campaign's eligible auctions. Audience strategy should reflect whether the campaign seeks new customers, remarketing traffic, category demand, or a known customer profile.

Available options include custom segments, advertiser data segments, detailed demographics, Google-defined interests, and lookalike-related audience capabilities.

Lookalike behavior is changing during 2026. Google is moving Demand Gen Lookalike segments toward a suggestion-based model through a phased rollout. The seed audience increasingly acts as a signal that helps Google identify relevant users rather than functioning only through the older similarity-threshold model.

Audience expansion also needs to be considered separately from channel restriction.

A Shorts-only channel setting controls where the ad can appear.

Audience targeting controls who Google initially uses as the desired audience.

Optimized targeting can broaden who becomes eligible when Google predicts additional conversion opportunities.

Keeping these controls conceptually separate makes Demand Gen reporting easier to interpret.

Choose Bidding Based on the Business Result

Demand Gen bidding should match the conversion model rather than the creative format. A 9:16 Shorts campaign does not require a special bidding system.

Current Demand Gen bidding options include Maximize Conversions, Target CPA, Maximize Conversion Value, Target ROAS, and click-focused strategies when applicable.

Maximize Conversions seeks the greatest conversion volume possible within the campaign budget.

Target CPA seeks conversions while working toward an average cost-per-action target.

Maximize Conversion Value is intended for situations where conversion values differ and the advertiser wants the greatest total value within the available budget.

Target ROAS is designed for campaigns that pass conversion values and have a return-on-ad-spend objective.

Value-based bidding also has data requirements. Google currently states that Demand Gen campaigns can qualify through at least 50 conversions with value during the previous 35 days, including at least 10 during the previous seven days, or through at least 100 conversions with value across Demand Gen campaigns during the previous 35 days.

New campaigns without sufficient historical conversion-value data may therefore need to begin with a conversion-based strategy before moving to value-based bidding.

The current Google setup documentation does not prescribe one universal $15 daily budget or a universal 90-day campaign commitment for every Demand Gen advertiser. Google supports daily budgets and total campaign budgets, with account and delivery requirements affecting available minimums.

Google also recommends allowing roughly 50 conversion events for the learning period before making bidding changes when possible. Frequent early changes can make campaign evaluation harder.

Measure Shorts Performance at the Correct Reporting Level

Demand Gen reporting should separate creative performance, YouTube format performance, conversion performance, and cost. Campaign-level totals alone can hide whether Shorts is producing the result.

Google Ads reports Demand Gen metrics including impressions, clicks, interactions, engagements, views, conversions, and cost. Channel-level reporting is available, and YouTube traffic can be segmented into in-stream, in-feed, and Shorts formats.

For Demand Gen video on YouTube Shorts, Google defines an engagement as watching five seconds, clicking to the watch page, or clicking through to the advertiser's website.

Google defines a Shorts video view as watching ten seconds, watching until completion when the video is shorter, or clicking through to the website or watch page.

Useful performance analysis should connect those media metrics to the campaign's actual business objective.

For a conversion campaign, review:

  • Spend
  • Impressions
  • Views
  • Engagements
  • Website clicks
  • Conversions
  • Cost per conversion
  • Conversion value when available
  • Conversion value divided by cost when value tracking is active

A high view count does not automatically mean the campaign is producing qualified business activity. A low click rate also does not automatically mean the creative failed if conversion reporting shows that engaged viewers convert later.

The primary decision metric should follow the chosen campaign objective.

Test Human-Made and Google-Generated Shorts Separately

Creative testing becomes more useful when the variables being compared are clearly defined. Mixing several new audiences, bid changes, landing pages, and creative concepts at the same time makes the result difficult to interpret.

A useful Shorts test can compare:

  • Original 9:16 video versus an AI-created vertical version
  • Creator-style opening versus product-first opening
  • Voice-over versus music-led execution
  • Short version versus longer version
  • Direct offer versus problem-focused message
  • Auto-generated video versus manually produced video

Google Ads also supports Demand Gen experiments, giving advertisers a structured route for controlled campaign testing.

Do not evaluate only whether Google AI successfully created an asset. Evaluate whether that asset produces the desired advertising result.

Automatic creative production saves production work. It does not prove that automatically produced creative is better than brand-produced creative.

Common Demand Gen Shorts Setup Errors

Most Shorts setup problems come from confusing asset orientation, creative automation, channel selection, audience expansion, and bidding.

Uploading a 9:16 video and assuming delivery is Shorts-only is one of the most important errors. Aspect ratio affects creative suitability. Channel controls determine placement.

Leaving All Google channels enabled allows eligible creative to be considered for additional Demand Gen surfaces. Use manual selection when the objective is a clean Shorts-only test.

Confusing video enhancements with auto-generated video ads can also produce unexpected creative. Video enhancements modify uploaded video. Auto-generated video ads build new video from supplied assets.

Publishing generated creative without reviewing it creates unnecessary brand and accuracy risk. Google requires generated advertising assets to comply with advertising policies, and AI-generated assets are not automatically guaranteed approval.

Changing bidding too early can interfere with the learning period. Google recommends allowing around 50 conversion events before making changes when possible.

Optimizing for a weak conversion action can train bidding toward low-value behavior.

Ignoring Shorts-specific framing can produce vertical video that technically fits the placement but hides the product, call to action, or important text.

Using one creative indefinitely limits what the advertiser can learn about hooks, offers, formats, and audience response.

Current Limitations and 2026 Considerations

Demand Gen now gives advertisers considerably more control, but several restrictions remain relevant when building an automated Shorts workflow.

Demand Gen does not provide manual impression-frequency control. Google automatically manages frequency, although unique reach and impression reporting can be used for analysis.

Lead forms are not currently compatible with YouTube Shorts ads. Campaigns seeking leads from Shorts should normally send users to an appropriate external landing experience and measure the resulting conversion.

Not every Demand Gen channel is available with every combination of campaign goal, ad type, audience, and setting. The campaign interface determines eligibility from the selected configuration.

Google's manually prompted generative image tools also have account eligibility requirements. Current Google documentation says access can depend on account age, policy history, interface language, advertising category, and other eligibility checks. Accounts connected with Election Advertising Verification and certain sensitive categories are excluded from manually prompted image generation.

Channel Prioritization is beginning to expand in late 2026, but Demand Gen does not currently provide the same dedicated budget-allocation control described for some other campaign types.

Advertisers should therefore verify the exact controls displayed inside their own account before documenting a permanent workflow.

A Practical Demand Gen Shorts Build

The most dependable workflow for auto-generating YouTube Shorts ads separates strategy, generation, placement, and measurement into distinct decisions.

Begin with a real conversion goal and verified tracking.

Create the Demand Gen campaign.

Set location, language, bidding, and budget.

Build the required audience.

At the ad-group level, choose manual channel selection and keep only YouTube Shorts when Shorts-only delivery is required.

Supply strong brand images, text, business information, and landing-page information.

Enable auto-generated videos when appropriate.

Review any pre-generated vertical video suggestions.

Use video enhancements when converting existing horizontal video into vertical creative.

Prefer 9:16 assets at 1080 × 1920 for Shorts.

Keep the main message visible early and design around vertical safe areas.

Use sound where appropriate.

Preview every automatically created version.

Publish only approved creative.

Allow the bidding system enough conversion data before making repeated structural changes.

Segment reporting by YouTube ad format and confirm that traffic is being attributed to Shorts.

Compare automatically produced creative with intentionally produced 9:16 creative.

Continue using automation where it reduces production work without reducing message accuracy, brand control, or business performance.

The central idea is simple. Demand Gen can automate much of the production process, while channel controls can isolate YouTube Shorts delivery. The strongest setup uses both capabilities deliberately. Creative automation produces or adapts the asset. Channel selection determines where it can serve. Conversion tracking and bidding determine what Google Ads optimizes. Reporting determines whether the system is producing the intended business result.

Demand Gen gives advertisers a practical way to create and run YouTube Shorts ads with less manual production work. Google Ads can generate new video assets from images, text, brand elements, and existing creative, while video enhancements can adapt current videos into vertical formats suited to Shorts.

The most important setup decision is separating creative generation from placement control. A 9:16 asset does not automatically mean Shorts-only delivery. 

Advertisers who want a dedicated YouTube Shorts campaign should use Demand Gen channel controls at the ad-group level and select only YouTube Shorts.

Strong results still depend on more than automation. Accurate conversion tracking, suitable bidding, clear audience signals, strong opening frames, vertical-safe creative, useful landing pages, and careful performance analysis remain central to campaign quality.

Google AI can reduce the time required to produce multiple video variations, but every generated asset should still be reviewed for accuracy, branding, cropping, messaging, and policy compliance. Manually created 9:16 videos should also be tested against automatically generated versions to understand which creative approach produces better business results.

As Demand Gen continues to gain new channel, creative, audience, and reporting controls, advertisers should regularly check current Google Ads settings before applying older campaign instructions. 

A well-built Demand Gen Shorts workflow combines automated creative production with controlled placement, measurable conversion goals, and continuous creative testing.

Demand Gen Campaigns for YouTube Shorts Ads: FAQs

What is a Demand Gen campaign for YouTube Shorts?

A Demand Gen campaign is a Google Ads campaign type that can deliver visual and video ads across Google surfaces, including YouTube Shorts. Advertisers can use Demand Gen to create or adapt video assets, target selected audiences, optimize toward conversions, and control where ads appear. For Shorts-only delivery, YouTube Shorts must be selected through channel controls at the ad-group level.

Can Demand Gen campaigns run only on YouTube Shorts?

Yes. Current Demand Gen channel controls allow advertisers to select YouTube Shorts as the only delivery channel. Advertisers need to choose manual channel selection and deselect other eligible surfaces such as YouTube in-stream, YouTube in-feed, Discover, Gmail, Maps, and the Google Display Network.

Can Google Ads automatically create YouTube Shorts ads?

Yes. Demand Gen can automatically create video ads from supplied assets such as images, headlines, descriptions, business information, brand colors, and fonts. Google AI can produce vertical, square, and horizontal video versions depending on campaign eligibility and available creative tools.

Does uploading a 9:16 video make a Demand Gen campaign Shorts-only?

No. A 9:16 video makes the creative suitable for vertical placements, but it does not control where the campaign serves. Channel controls determine placement. Advertisers who want YouTube Shorts-only delivery must manually select YouTube Shorts at the ad-group level.

What video format should be used for YouTube Shorts ads?

A vertical 9:16 video is the preferred format for YouTube Shorts. A resolution of 1080 × 1920 pixels provides a suitable full-screen vertical format. Important products, faces, text, offers, and calls to action should remain visible within safe areas so interface elements do not cover key information.

How long should a YouTube Shorts ad be?

Shorts creative should communicate the main message quickly. Google recommends shorter vertical videos for action-oriented campaigns, with approximately 10 to 30 seconds often fitting the Shorts viewing experience well. Longer eligible videos can also appear, but advertisers should focus on strong opening frames and concise messaging rather than extending video length unnecessarily.

What is the difference between auto-generated videos and video enhancements?

Auto-generated video ads create new videos from assets such as images, text, brand colors, and business information. Video enhancements work with an existing uploaded video and can create additional versions, such as vertical, square, or shorter edits. The first method creates new video creative, while the second adapts existing footage.

Which bidding strategy should be used for Demand Gen Shorts campaigns?

The bidding strategy should match the campaign goal. Maximize Conversions can be used when conversion volume is the main objective. Target CPA can focus on acquiring conversions around an average cost target. Maximize Conversion Value and Target ROAS are more suitable when accurate conversion values are available and sufficient historical data supports value-based bidding.

How should YouTube Shorts Demand Gen performance be measured?

Advertisers should review impressions, views, engagements, clicks, conversions, cost per conversion, conversion value, and return on ad spend when applicable. Reporting should also be segmented by YouTube format so advertisers can confirm that results are coming specifically from Shorts. Business outcomes should carry more weight than views alone when the campaign objective is sales or leads.

Should automatically generated Shorts ads replace manually created videos?

Not automatically. Google-generated video can reduce production work and create additional creative variations, but manually produced Shorts may provide stronger control over hooks, pacing, branding, storytelling, product demonstrations, and calls to action. Advertisers should test AI-generated and manually created 9:16 videos separately and compare their actual conversion performance.

Written by

ReelnReel Team

The shared editorial byline for ReelnReel’s coverage of video marketing, YouTube, AI video and streaming.

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