Google Display Ads campaigns are being retired as a standalone campaign type. The Google Display Network isn’t going anywhere. The inventory remains, but the campaign structure that runs it is moving into Demand Gen. That means a different workflow, different defaults, and some features that don’t make the transition.
This isn’t optional. Google is phasing it in now and will automatically migrate remaining campaigns later in 2026 if advertisers haven’t acted. The question isn’t whether to migrate. It’s whether to migrate on your terms or theirs.
The Timeline
June 2026 — Now
Migration tool live. Eligible advertisers can begin moving existing Google Display Ads campaigns to GDN on Demand Gen manually via their Google Ads account. Performance history (up to 42 days) carries over. Learning time reduced to approximately one to two days.
Coming later — 2026
New Google Display Ads campaigns can only be created within Demand Gen. Existing campaigns remain accessible and editable until migrated.
Coming later — Date TBC
Automatic migration of all remaining eligible Google Display Ads campaigns to Demand Gen. No advertiser action required or available.
If you’re running Conversion Lift or Brand Lift studies mid-flight, don’t use the migration tool until the study completes. Migrated campaigns won’t be automatically associated with active lift studies.
What’s Actually Changing
The GDN inventory isn’t changing. Your ads will still serve across the same two million-plus sites and apps. What changes is the campaign layer sitting above it. Demand Gen is a broader campaign type that also covers YouTube, Discover, Gmail, and Maps (in beta). Migrated display campaigns default to GDN only, but you gain the option to extend into those other surfaces after migration.
The practical difference for most e-commerce brands isn’t the inventory. It’s the feature set. Some things you had in Display don’t exist in Demand Gen. Some things in Demand Gen didn't exist in Display. Neither list is trivial.
✓ What you gain
- Access to Discover, YouTube, and Maps inventory from a single campaign
- Lookalike segments replacing Similar Audiences with a more capable targeting layer
- Carousel ad format
- Wider video ad formats including YouTube Shorts
- Generative image tools and image-to-video
- Format segmentation reporting: Performance broken out by In-feed, Skippable in-stream, Shorts
- Flighted campaign total budgets
✗ What you lose
- Manual CPC bidding: nearest equivalent is Target CPC
- Pay-for-conversions bidding: auto-switches to pay-for-clicks with Target CPA
- Viewable impressions bidding: nearest equivalent is Max clicks
- Bid adjustments, seasonality adjustments, portfolio bidding
- Ad group bid modifiers
- Brand Lift and Search Lift measurement for GDN placements
- Combined audiences and observation setting for non-demographics
- HTML5 ads (coming late 2026)
- Business data feeds (coming soon, not yet supported)
The Features That Need Your Attention Before You Migrate
The migration tool handles most of the transition automatically, but a handful of configurations will block migration or auto-switch in ways worth knowing about before you trigger it.
- Manual CPC: Not supported in Demand Gen. It automatically switches to Target CPC, so review bid levels before migrating.
- Pay for conversions: Not supported in Demand Gen. It automatically switches to pay for clicks with Target CPA, so confirm the CPA target is set correctly before migration.
- Ad group bid modifiers: Not supported. These must be removed before migration; otherwise the migration tool will be blocked.
- Lead form assets: Not supported. Remove all lead form assets before migrating.
- Shared budgets: Not supported. Assign a dedicated budget to each campaign before migration.
- HTML5 ads: Support is expected in late 2026. Until then, campaigns relying solely on HTML5 ads will need image-based alternatives.
- Product feeds (GMC): Supported. However, business data feeds are not yet supported, so verify which feed type your campaigns use.
- Remarketing lists: Supported. No action required; they carry over automatically.
- Customer Match: Supported. No action required; it carries over automatically.
- Responsive display ads: Supported. A logo is required. The migration tool will add a placeholder logo if one is missing, but it should be reviewed and replaced with the correct logo.
Using the Migration Tool vs Doing It Manually
Google recommends the migration tool for a clear reason: it carries performance history across to the new campaign, reducing the learning phase to approximately one to two days. Creating a new Demand Gen campaign from scratch and manually shifting budgets doesn’t carry that history. The new campaign starts cold, which means a longer and less predictable ramp period.
The budget handling on migration day is worth understanding. Any spend already accrued in the original campaign on the day of migration isn't recognised by the new Demand Gen campaign. If your Display campaign spent £30 of a £100 daily budget before you hit migrate, the new Demand Gen campaign starts with a fresh £100 for the remainder of that day. Budget overdelivery on migration day is possible. Plan accordingly.
Migrate no more than 100 campaigns in a single batch. Google’s own documentation flags this as the limit for stable migration. If you have more than 100 Display campaigns, sequence the migration rather than running it all at once.
What This Means for eCommerce Brands Specifically
For most e-commerce advertisers running standard GDN retargeting and prospecting, the migration is lower friction than it might appear. The core targeting tools — remarketing lists, Customer Match, contextual targeting, product feeds via GMC — carry across. The inventory you were already using remains accessible. The campaign defaults to GDN-only on migration, so you're not automatically opted into YouTube or Discover spend you weren't expecting.
The bigger opportunity and the one worth evaluating deliberately rather than letting it happen by default is what Demand Gen offers beyond GDN. Lookalike segments replacing Similar Audiences is a meaningful upgrade for brands with good first-party data. YouTube inventory from the same campaign type is a genuine reach extension. Format segmentation reporting gives visibility into where performance is actually coming from across surfaces.
None of those benefits are automatic. They require deliberate configuration after migration: new audiences, additional creative assets for video formats, and a measurement framework that accounts for Demand Gen’s broader reach rather than treating it as a GDN-equivalent campaign with a different name.
The Bidding Change Worth Watching
If you’re running any campaigns on Manual CPC or Pay for Conversions, the migration auto-switches those strategies. Manual CPC becomes Target CPC. Pay for Conversions becomes pay for clicks with Target CPA. Neither is a like-for-like switch. Target CPC gives more algorithmic control to Google than Manual CPC, and Pay for Conversions campaigns were fundamentally different in risk profile from pay-for-clicks with a CPA target.
Review your bid strategies before migrating. If Manual CPC was being used to maintain specific bid control on particular placements or audiences, that control doesn't have a direct equivalent in Demand Gen. Understand what you're moving from before the tool does it automatically.
What To Do Now
- Audit your existing Display campaigns: Filter by campaign type in the Campaigns tab to get a full count.
- Identify any campaigns using ad group bid modifiers, lead form assets, shared budgets, or pay-for-conversions bidding: These need resolving before migration.
- Check your product feed type: GMC feeds are supported; business data feeds are not yet.
- Confirm your logo assets are available: Required for Demand Gen; the migration tool will add a placeholder if missing.
- Don't migrate mid-lift-study: Wait for active Brand Lift or Conversion Lift studies to complete.
- Use the migration tool rather than manual budget transitions: The performance history carryover is worth it.
- Plan the migration day spend carefully: Overdelivery on migration day is a known risk.
360 OM View
This is a forced migration with a real deadline. The migration tool is the right approach. The performance history carryover matters, and a cold-start Demand Gen campaign is a worse outcome than a planned transition. Do it on your terms before Google does it on theirs. The Demand Gen feature set is genuinely better than standalone Display in several areas. But the upgrade only delivers if you configure it deliberately, not just accept the defaults and move on.
Need a fresh perspective? Let’s talk.
At 360 OM, we specialise in helping businesses take their marketing efforts to the next level. Our team stays on top of industry trends, uses data-informed decisions to maximise your ROI, and provides full transparency through comprehensive reports.
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