--- title: "Discovery to AI Max: The Google Ads Timeline That Retired Your Old Playbook" description: "From Discovery’s replacement to AI Max’s Search migration, follow the dated changes to Google Ads and see which manual controls are worth retiring." image: "https://cdn.prod.website-files.com/6823bbd57170ea42b357cf81/6abb497801266c464b6a1ada_558fd0ba-6b82-469c-b495-b0662b093bb3.png" --- September 29, 2026 • min read # Discovery to AI Max: The Google Ads Timeline That Retired Your Old Playbook ![Young man with curly hair wearing a black shirt outdoors against green foliage background.](https://cdn.prod.website-files.com/6821efca072e48f6f495a47e/68562d390107b3921a6e3d68_1743932904108.jpg) **Alexander Perleman**, Head Of Product @ groas Ex-Goldman Sachs and Stanford Computer Science alex@groas.ai [LinkedIn](https://groas.com/post/how-google-s-bid-strategies-got-renamed#) ![Cover image for: Discovery to AI Max: The Google Ads Timeline That Retired Your Old Playbook](https://cdn.prod.website-files.com/6823bbd57170ea42b357cf81/6abb497801266c464b6a1ada_558fd0ba-6b82-469c-b495-b0662b093bb3.png) An audit that recommends building a Discovery campaign is an audit of a Google Ads account that no longer exists. I still see advice built around standalone Target CPA settings and rigid exact-match structures, too. Some of the buttons have changed names; some of the work those structures were built to do has moved to Google’s models. Treating both as a cosmetic update gets expensive. **The dates reveal the direction.** Discovery became [Demand Gen](https://groas.com/post/google-demand-gen-campaigns-complete-2026-guide). Performance Max gained inventory and, eventually, better guardrails. Bid strategies changed names twice. AI Max began moving Search matching and URL selection inside an existing campaign. Put those turns in order and the bargain becomes clear: advertisers set goals and boundaries; Google takes more of the decisions between a search and a click. Here is what changed, what it fixed or broke, and what I would stop building by hand. #### April 2021: Target CPA and Target ROAS move inside Maximize bidding Google retired standalone Target CPA and Target ROAS settings and folded them into [Maximize Conversions with an optional Target CPA and Maximize Conversion Value with an optional Target ROAS](https://www.jumpfly.com/blog/target-cpa-target-roas-gone-but-not-forgotten/). Existing campaigns converted without going back into learning. The bidding logic did not disappear; the labels and the route to the target changed. That sounds minor until you try to follow an old setup guide. A screenshot pointing to a standalone strategy sends you looking for a setting you cannot select under that name. More importantly, the new presentation makes it tempting to read “Maximize Conversions” as the whole strategy and overlook the optional target. **The target still changes the instruction you give Smart Bidding.** Without a CPA or ROAS target, you ask it to pursue volume within the campaign’s budget. With one, you put a price or return constraint on that pursuit. I would not copy a target from a competing advertiser, even one selling something similar. Their margin math is not yours. The practical takeaway from this first rename is dull and useful: find the field that expresses your economics before worrying about what Google calls the button. #### 2023–March 2024: Discovery becomes Demand Gen Discovery went away, and Google finished [moving its campaigns into Demand Gen by March 2024](https://cordelialabs.com/blog/what-are-google-discovery-ads). Budgets and history carried over, so an advertiser could miss the handoff and assume a change in results came from the creative alone. But the campaign on the other side was not simply Discovery with a fresh name. Demand Gen kept the Discovery feeds: Discover, Gmail and YouTube home. It also added [YouTube Shorts, in-stream and YouTube Search inventory, alongside video, carousels, lookalikes built from first-party lists and Maximize Clicks bidding](https://cordelialabs.com/blog/what-are-google-discovery-ads). That gave the system more places and ways to find an audience. It also meant that a familiar budget and familiar assets could reach a different mix of impressions. This is where the old playbook starts to fail. If I use one broad audience and static images because that was my Discovery routine, I am asking a wider campaign to work with a narrow set of inputs. More volume does not, by itself, tell me whether the extra reach is useful. I need to look at the quality of the response, not congratulate the account for finding cheaper impressions. **Demand Gen was an early warning about control changing shape.** A migration can preserve history while changing where ads appear and what the campaign can do. The practical takeaway: do not diagnose a migrated Demand Gen campaign as though it still runs on Discovery’s inventory and creative assumptions. #### January–April 2025: Performance Max gets guardrails advertisers asked for Performance Max had been easy to describe as a black box: supply assets, set a goal, then try to work out what happened. The 2025 changes did not make it manual. They gave advertisers more ways to inspect and constrain what the automation was doing. The dated steps matter. [Brand guidelines became required for new campaigns created in the UI on January 20](https://ppc.land/google-wraps-up-performance-max-feature-rollouts-in-2025/). On [March 11, the negative-keyword limit rose to 10,000](https://ppc.land/google-wraps-up-performance-max-feature-rollouts-in-2025/). The [channel-reporting push followed on April 30](https://ppc.land/google-wraps-up-performance-max-feature-rollouts-in-2025/). These are not three versions of the same feature: one governs brand presentation, one gives advertisers more room to exclude unwanted queries, and one makes distribution easier to see. That distinction changes the account-management job. When you cannot see enough of the traffic or block enough of the waste, separating campaigns can feel like the only available fence. As reporting and exclusions improve, you can build more of that fence with controls inside the campaign instead. I used to favour structural fences around PMax. I would now check the available exclusions and reporting before adding another campaign whose main purpose is to compensate for a missing view. **Automate first, add guardrails later:** that is the pattern these dates show. The practical takeaway is not that every PMax problem is solved. It is that an account designed around the controls available in 2022 deserves another look before you keep defending its structure. #### Late May 2025: AI Max starts changing Search from inside Google [announced AI Max as an open beta rolling out in late May 2025](https://searchengineland.com/google-ads-ai-max-search-454980). It is a layer inside an existing Search campaign, not a new campaign type. That is why I would resist treating it as “PMax for Search.” The more useful question is which decisions your Search campaign still makes through keywords, ads and landing-page choices once the layer is on. AI Max gives Google three jobs: [search term matching through broad match and keywordless expansion; text customization using pages and assets; and Final URL Expansion, which selects a predicted landing page on the domain](https://searchengineland.com/google-ads-ai-max-search-454980). Text customization carries forward work associated with Automatically Created Assets. Final URL Expansion is the sharper break with an old Search assumption. A keyword and ad group no longer have to keep a click headed to the landing page you selected. That can fix a familiar problem: relevant searches going to the homepage because nobody built the right ad group and destination. It can also break a deliberate funnel that depends on high-intent traffic reaching one particular page. **Audit eligible URLs before you hand over routing.** A page you forgot about is still a page Google may consider for paid traffic. Google [claimed 14% more conversions at a similar CPA, and up to 27% for accounts heavy on exact and phrase match](https://searchengineland.com/google-ads-ai-max-search-454980), citing L’Oreal and MyConnect as early cases. The mechanism is plausible: a tightly built account leaves more variants and possible destinations outside its existing structure. The claim is not a forecast for your account. Say you spend $20k a month across 200 exact-match keywords. You have a reason to test whether expansion finds useful demand, not a reason to put 27% into next month’s plan. The practical takeaway is to judge the new reach by the conversions you actually value. A bigger query list is not a result if the landing pages and leads are wrong. #### August 2025: Performance Max becomes easier to inspect By [August 7, Google had concluded its 2025 Performance Max feature rollouts](https://ppc.land/google-wraps-up-performance-max-feature-rollouts-in-2025/). The fuller set included campaign-level negative keyword lists, a rise from 25 to 50 search themes per asset group with a usefulness indicator, full search-terms reporting, demographic and device exclusions, and asset-level channel reporting. These additions matter together. Search terms help show what attracted traffic; negatives help stop unwanted queries; channel and asset reporting give you more to inspect before you blame creative or rebuild the account. They do not guarantee that PMax will stop drawing spend away from Search or eliminate junk traffic. They make those problems less blind and give an operator more direct ways to respond. **Use the controls before you invent a workaround.** If a PMax campaign still runs without relevant brand exclusions or with an old 25-theme plan simply because nobody revisited it, the account is operating from an older version of the playbook. #### June 2026: The bid-strategy names turn back Google then [brought back the Target CPA and Target ROAS names](https://searchengineland.com/google-ads-brings-back-target-cpa-and-target-roas-naming-480690). Maximize Conversions with a Target CPA becomes Target CPA again; Maximize Conversion Value with a Target ROAS becomes Target ROAS. Google described no change to bidding behaviour or performance and no required action. Same engine, old names back on the box. That closes the loop from April 2021, and it is a useful check on how we talk about automation. A renamed setting can make a tutorial obsolete without making the underlying tactic obsolete. Conversely, finding a familiar label in the interface does not mean you can ignore the target behind it. **The number matters more than the name.** Set it from your own margin and conversion economics, then examine what the campaign produces against that constraint. If you need the setting-by-setting run-down, the [complete guide to bidding strategies in 2026](https://groas.com/post/google-ads-bidding-strategies-2026-complete-guide-manual-cpc-smart-bidding-tcpa-troas) covers the menu. For this timeline, the takeaway is simpler: do not build an account strategy around memorizing Google’s current labels. #### August–September 2026: AI Max migration gets a schedule AI Max stopped being only a test you might choose to run. On August 3, Google blocked creation of campaign-level broad match and legacy Automatically Created Assets. Its [schedule puts the in-place AI Max upgrades for affected campaigns between September 1 and 30](https://searchengineland.com/google-sets-ai-max-migration-timeline-for-search-campaigns-485006). DSA warnings begin in September, with [forced DSA migration scheduled for February 1–28, 2027](https://searchengineland.com/google-sets-ai-max-migration-timeline-for-search-campaigns-485006). A scheduled migration does not mean every Search campaign changes in the same way today. It does mean that a structure depending on campaign-level broad match as a separate prospecting layer, or on DSA as a catch-all, needs attention before Google changes the machinery under it. I would rather inspect those dependencies myself than discover them through a shift in where clicks land. ![Cartoon timeline showing Discovery, Demand Gen, Performance Max and AI Max road signs](https://cdn.prod.website-files.com/6823bbd57170ea42b357cf81/6abb497801266c464b6a1adf_f18f01c0-4783-458f-a2c6-32b962ffd97d.png) There are still levers. AI Max’s three features turn on together, but [text customization and Final URL Expansion can be opted out at campaign level, while search term matching can be opted out at ad group level](http://searchengineland.com/googles-ai-max-search-ginny-marvin-455582). [Brand controls and negative keywords remain in force, and exact-match priority is preserved](http://searchengineland.com/googles-ai-max-search-ginny-marvin-455582). That is a better description than either “Google controls everything” or “nothing changes.” **Do not wait for a migration with broken URL coverage or missing brand exclusions.** Check the pages and fences first, then decide how much expansion to allow. Keep exact match for the terms whose performance you need to protect; let AI Max test the variants you would not sensibly build one by one. #### September 2026: Stop defending the structure; own the outcome Read the entries in order. Discovery to Demand Gen widened the inventory and creative playbook. PMax took on more placement decisions, then gained better ways to inspect and fence them. The bid-name reversals showed how little the label itself says about the strategy. AI Max now brings matching, text and URL decisions further inside Search automation. The direction is not subtle, even if each step arrives under a different product name. For the wider dated list, including PMax, AI Max and GA4 changes condensed here, see [every Google Ads change that matters in 2026](https://groas.com/post/every-google-ads-change-that-matters-in). My read of where the line points next is **less hand-built structure, not less advertiser responsibility**. I would not start a separate broad-match campaign solely to find terms, a DSA catch-all to cover thin site sections, or a 400-keyword ad group split three ways by match type without a reason stronger than “that is how we have always done it.” Those structures were ways to cover gaps in expansion. When the campaign already expands, extra segments can split learning and leave more brittle objects for a migration to rewrite. Manual headline pinning is not a substitute for checking whether the eventual ad and landing page fit the intent. Say you spend $20k a month. One Search core with the exact terms you rely on, plus AI Max bounded by negatives and brand rules, gives the campaign a less fragmented place to learn than four clever segments fighting over the same 30 conversions. That is an account-design argument, not a promise of a faster learning period or a particular CPA. ![Overhead photo of desk with printed keyword lists in trash bin and laptop showing automated campaign dashboard](https://cdn.prod.website-files.com/6823bbd57170ea42b357cf81/6abb497801266c464b6a1ae9_2f971b13-51d2-4a67-a5af-0ea641e9eef6.png) What I would build instead is boring. **Set the target from margin, fence the automation, feed it proof.** Work out an allowable CPA from what an order leaves after margin and fulfilment costs, or, for lead generation, from close rate and gross profit per closed job. Use brand exclusions in PMax, negatives and the location or device exclusions available to the campaign. Review search themes against the current 50-theme limit, and keep Final URL Expansion away from pages that cannot do the job. Then give the system conversion tracking tied to qualified pipeline and closed revenue rather than raw form fills, alongside fresh creative and landing pages that fit the intent. I would time the immediate work plainly: fix tracking and exclusions, review the affected Search campaigns during the September upgrade window, then judge AI Max on qualified pipeline after 30 days rather than on click mix after seven. If expansion reaches new queries while buying your own brand terms or sending traffic to weak pages, you have not learned much about its useful reach. You have measured the cost of leaving the fence open. Budgets and measurement do not stop being your job because matching gets easier to automate. Only your business knows its margin, and its own conversion data has to show what became revenue. That is where I expect the next turn of this timeline to point: away from defending ever more elaborate manual objects and toward better targets, guardrails and evidence. Keep the dates in view. Every entry moved another decision from a spreadsheet to a model. The operators who make that trade willingly can spend their hours on the decisions Google cannot make for them. ## Related Posts [![Cover image for: Stop Asking When Google Ads Will Finish Learning. Stop Resetting the Conditions.](https://cdn.prod.website-files.com/6823bbd57170ea42b357cf81/6abb4bda3748f4695a8d3309_5fc122e6-dd3d-4a83-87da-ca6f1fd63488.png) ##### Stop Asking When Google Ads Will Finish Learning. Stop Resetting the Conditions. Budget swings, tCPA cuts, and Friday asset dumps can keep Smart Bidding recalibrating. Before you blame the learning phase, check your change history. September 29, 2026 • min read Written by](https://groas.com/post/stop-asking-how-long-the-learning-phase) [![Cover image for: ROAS vs. CPA: The Margin Mistakes Beginners Make in Google Ads](https://cdn.prod.website-files.com/6823bbd57170ea42b357cf81/6abb49c21470bda4cd649a58_cb8a62fb-d905-43b9-a16e-399a855282fa.png) ##### ROAS vs. CPA: The Margin Mistakes Beginners Make in Google Ads ROAS and CPA are different bets about your margins, not interchangeable bidding settings. Here’s how the wrong target can starve volume or buy unprofitable conversions. September 29, 2026 • min read Written by](https://groas.com/post/what-i-got-wrong-about-roas-and-cpa-when) [![Cover image for: Target CPA vs. Target ROAS: Which Goal Protects Profit?](https://cdn.prod.website-files.com/6823bbd57170ea42b357cf81/6abb499dcae7506325addb77_7abaaade-6db5-4e1b-9fd4-069892192d8e.png) ##### Target CPA vs. Target ROAS: Which Goal Protects Profit? Target CPA controls acquisition cost; Target ROAS bids for conversion value. Here is the strongest case for each—and the default I would choose when the data cannot settle it. 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