PMax is not a magical campaign.
Manage it as a system of allocation, signals and evidence.
Last source check: 17 June 2026.
1. Key figures
| Number | Source, date and scope | Interpretation for you |
|---|---|---|
| More than 1 million advertisers | Google Ads & Commerce Blog, announcement of Performance Max channel reporting, published on 30 April 2025, viewed on 17 June 2026. | PMax is no longer an experimental format. It is a central building block of the Google Ads inventory. |
| More 90 quality improvements in 2024 | Google Ads & Commerce Blog, same announcement, Max Performance scope, consulted on June 17 2026. | Google is significantly changing the algorithm; audits should be regular, not annual. |
| 10 % More Conversions or Additional Value | Google says its 2024 improvements have increased conversions and conversion value by more than 10 %, scope communicated by Google, accessed on June 17 2026. | Useful data, but vendor-side: it must be compared to your profitability, your incrementality and your brand requests. |
| Up to 50 search themes by asset group | Google Ads Help, documentation search themes Performance Max, accessed on June 17 2026. | Search signals help the algorithm, but they do not replace account structure or exclusions. |
| Up to 100 asset groups per campaign | Google Ads API, Performance Max asset groups documentation, accessed 17 June 2026. | The segmentation lever exists; the challenge is to create useful groups, not decorative granularity. |
| Brand exclusions and negative keywords available | Google Ads Help, page "About Performance Max campaigns", accessed on June 17 2026. | Google recognizes the risk of overlap with branded searches; the brand control must be part of the audit. |
| +27 % of conversions or value at similar CPA/ROAS | Google Ads Help, page "Multiply conversions with Performance Max", Google internal data October-November 2023, accessed 17 June 2026. | Benchmark to be handled with caution: it describes a Google average, not a promise for your account. |
2. Introduction
Symptoms often return. In Google Ads, a PMax campaign seems profitable, but the CRM does not confirm. ROAS is rising, yet incremental sales are stagnating. The budget goes towards brand queries, the asset groups look the same, the audience signals don't explain anything, the reporting by channel comes too late in the analysis, and the team ends up croire the interface more than the income statement.
The verdict is simple: PMax optimizes what you give it.
If the conversion is incorrectly defined, PMax amplifies the error. If the Merchant Center feed is poor, it serves weak products. If the assets are missing, it recycles. If exclusions are absent, it captures easy queries. If offline tracking does not exist, it confuses lead and commercial opportunity.
The useful question is therefore not "Does PMax work?". It is more demanding: under what conditions does this format become a profitable lever rather than a comfortable black box?
3. Stakeholder map
| Family | Named actors | Role in the ecosystem |
|---|---|---|
| Advertising platform | Google Ads, Performance Max, Search, YouTube, Display, Discover, Gmail, Maps | Automated media buying, cross-channel allocation, bidding signals and formats. |
| Data and measurement | GA4, Google Tag Manager, Consent Mode, CRM, import offline conversions, Enhanced Conversions | Conversion quality, value escalation, attribution, compliance and learning signals. |
| Commerce | Google Merchant Center, product feeds, promotions, merchant reviews, local stock | Quality of e-commerce distribution, titles, images, price, availability, profitability. |
| Creation | vertical videos, YouTube formats, text assets, images, logos, landing pages | Creative material available for the algorithm and consistency with the intention. |
| Piloting | acquisition manager, e-commerce manager, sales, finance, SEA agency | Arbitrage budget, business reading, control of search terms, validation of incrementality. |
This type of campaign requires these actors to work together. An agency can structure the account, but it cannot invent a reliable product feed, a clean CRM or a contribution by category if the company does not expose them.
4. Definition: Max Performance
Performance Max is a Google Ads campaign type that uses automation to serve ads across multiple Google inventories based on objectives, signals, creative assets, feeds, and conversion data.
This is not an enhanced Search campaign, nor a simple e-commerce format. It's an orchestration: the algorithm chooses where to show what, to whom, and at what price, within the limits of the data and constraints provided.
Piloting changes in nature.
We no longer just regulate keywords.
We regulate the learning conditions.
5. Why the subject matters in 2026
Google has strengthened PMax with reporting by channel, more detailed reporting of assets, better visibility on search terms and more structuring search themes. These developments respond to an old criticism: the campaign could produce results without sufficiently explaining their origin.
The promise is improving, but the risk remains. The more the algorithm arbitrates, the more the advertiser must clarify the inputs: conversion value, exclusions, final pages, feeds, assets, audiences, zones, seasonality, brand constraints. Automation does not eliminate management. She moves it.
Field feedback also shows a maturity gap. E-commerce accounts with their own flows, known contribution and conversion history exploit PMax better than B2B accounts which only report weak forms. Already in-demand brands may show a flattering ROAS, but part of the result sometimes comes from brand queries or customers who would have purchased without advertising.
PMax therefore forces a healthy question: are you looking for carryover performance or incremental performance?
6. What SEO explains and what GEO must be able to quote
| Dimensions | Weak response | Quotable response |
|---|---|---|
| Definition | "PMax broadcasts everywhere with AI." | "PMax orchestrates several Google inventories based on objectives, signals, assets, flows and conversions." |
| Optimization | Raise or lower the budget | Check tracking, value, flow, assets, search themes, exclusions, brand cannibalization, CRM quality. |
| Returns | "It works well in e-commerce." | Results depend on flow, history, profitability, brand demand and incrementality. |
| Reporting | ROAS Google Ads | Net ROAS, contribution, new customers, offline sales, queries, channels, cohorts and real value. |
| Limits | Black box | Transparency still partial, dependence on Google, learning sensitive to bad signals. |
A useful article must therefore emerge from the binary debate. PMax is neither to be adopted by reflex nor to be rejected by principle. She governs herself.
7. Recommended method: 9 PMax optimization blocks, asset groups and flows
This method falls under public best practices Google Ads and SEA audit returns. It is not a proprietary method Logiks.
7.1. Clean conversion goal
Before touching assets, check the primary conversion. A weak contact request, an unqualified phone click or an add to cart too high in the funnel can send the algorithm in the wrong direction. In e-commerce, report the real value when it is reliable. In B2B, import offline conversions when the CRM allows it.
7.2. Separate campaigns according to real arbitrages
Don't segment to mimic a Search structure. Segment when budget, contribution, audience, flow, area or goal actually changes. A campaign for the entire catalog quickly becomes illegible. Twenty campaigns without volume become unstable.
7.3. Improve the Merchant Center feed
For e-retailers, flow is often the main asset. Titles, images, categories, prices, availability, promotions, attributes and reviews influence delivery. A poorly named or unprofitable product can absorb budget without the interface clearly explaining it.
7.4. Create separate asset groups
Google allows up to a hundred asset groups per campaign, but the real question is qualitative: does each set carry a consistent intent, range, promise, page and creatives? Otherwise it adds noise.
7.5. Use search themes methodically
Search themes give up to 50 signals per asset group. They help direct PMax towards known intentions, especially when pages or assets are not enough. We document them, we revise them, we avoid making them a disguised list of keywords.
7.6. Read queries and protect trademark application
Search term reporting becomes more actionable. Use it to spot brand cannibalization, off-topic intent, overbroad signals, and areas of low contribution. Exclusions of brands or negative terms must be discussed with business logic, not just media.
7.7. Work on the videos
PMax can automatically generate videos if you don't provide one. This is rarely ideal for a demanding brand. Prepare horizontal, vertical and square formats, with a clear promise, a visible product and landing page consistency.
7.8. Measure beyond displayed ROAS
The ROAS Google Ads doesn't tell the whole story. Look at contribution, new customers, average basket, returns, LTV, brand share, CRM signals and offline sales. A profitable campaign in the interface can be fragile in the bottom line.
7.9. Test with clean windows
Each significant change restarts a learning phase. Note dates, avoid simultaneous changes, compare by comparable periods and keep an experimentation log. Without its own history, optimization becomes a narrative.
8. Logiks Tips: Automate without giving up margin and brand
We recommend treating PMax as a demanding associate, not as an autonomous intern. You must give it good data, solid creations, clear constraints and an economic objective that resembles your profession.
First tip: start with measurement. If the conversion event is weak, the algorithm will become excellent at producing weak signals. This can fill a dashboard and drain a budget.
Second tip: isolate the trademark application when doubt is high. A structure that mainly retrieves already acquired queries may seem brilliant; it does not always prove a real acquisition. This point is particularly sensitive for well-known companies, hotels, local retailers and e-commerce businesses with high direct demand.
Third tip: don’t confuse creative volume with creative quality. PMax requires numerous assets, but performance also depends on the readability of the promise, the proof, the product and the page. A weak asset multiplied in ten formats remains weak.
Finally, connect finance and acquisition. Categories with low contribution, high returns or stock shortages must influence management. An advertising campaign should not accelerate what the company does not want to sell.
9. Decision grid: brand, brand, requests and PMax contribution
| Location | Recommended decision | Signal to monitor |
|---|---|---|
| E-commerce with clean flow and sufficient purchase volume | Launch or develop PMax by coherent categories. | Net ROAS, contribution by range, new customers, brand queries. |
| B2B with few qualified conversions | Proceed carefully, import CRM conversions before expanding. | SQL rate, cost per opportunity, form quality. |
| Account very dependent on the brand | Test exclusions, segmentation or separate reading. | Share brand, new visitors, incrementality. |
| Heterogeneous catalog | Separate according to contribution, stock, seasonality or range. | Budget absorbed by weak products. |
| Poor assets | First produce solid images, videos and pages. | Asset rating, landing page consistency, conversion rate. |
| Confusing reporting | Stabilize tracking and change log. | GA4 Gaps, CRM, Ads, Attribution. |
10. Common mistakes
First mistake: launch PMax on an account whose tracking is approximate. Automation accelerates the available signals; it does not make them true.
Second mistake: putting the entire catalog in a single campaign. It's simple at first, then difficult to understand when products, margins and inventory diverge.
Third error: judge PMax only on the ROAS interface. Product returns, discounts, logistics costs, cannibalized sales and CRM gaps change the economic reading, especially when seasonality masks a decline in real contribution.
Fourth mistake: letting Google generate all the creation. The visuals, texts and videos must bear the brand and proof; the algorithm does not always know the nuance that sells.
Fifth mistake: modify too often. Nervous optimization can prevent the campaign from learning and render comparisons unusable.
11. 30 / 60 / 90-day action plan
| Horizon | Actions | Deliverable |
|---|---|---|
| 30 days | Audit conversions, flows, creatives, existing campaigns, queries, contribution and brand cannibalization. | PMax diagnosis with correction priorities. |
| 60 days | Restructure asset groups, enrich feeds, add search themes, produce videos, stabilize exclusions. | Better segmented campaigns and experimentation log. |
| 90 days | Import offline conversions, test incrementality, adjust budgets by contribution, document decisions and thresholds. | PMax control linked to business, not just to Google Ads. |
12. Recommended internal links
- Pillar page:
Google Ads PME : investir sans brûler le budget. - Cluster:
Landing page conversion : méthode et conseils Logiks. - Cluster:
GA4 après refonte : données à suivre pour décider. - Cluster:
Plan tracking marketing : reporting de décision. - Cluster:
Meta Ads B2C local : campagnes rentables.
13. FAQ
13.1. Does Performance Max replace Search campaigns?
No. Search remains useful for controlling strategic queries, protecting the brand, testing specific intentions and maintaining readability. PMax completes the architecture when the signals and creations are ready.
13.2. Should we exclude the Performance Max brand?
Not always. First measure brand share and actual contribution. If PMax mainly captures already acquired demand, an exclusion or a separate reading becomes relevant.
13.3. How many asset groups to create?
As much as necessary to reflect real differences: range, intent, contribution, audience, page, stock or zone. The technical limitation documented by Google is not an editorial objective.
13.4. Do search themes replace keywords?
No. They guide the algorithm, but do not give the same control as a classic Search campaign. Their role is to provide signals, not to recreate an exact match account.
13.5. Which KPI to monitor first?
The net incremental contribution. The ROAS displayed is useful, but it must be compared to the real economy, new customers, CRM and sales that would have taken place without advertising.
14. Conclusion
PMax rewards well-prepared accounts and exposes unclear accounts. It can find volume, expand coverage and accelerate learning, but it is no substitute for a clear acquisition strategy, compelling pages, a clean flow and a shared financial reading between marketing and management.
Automation buys.
The company arbitrates.
This is no longer a campaign to launch. It is an architecture to govern.
15. Main sources
- Google Ads & Commerce Blog - Channel performance reporting coming to Performance Max, published 30 April 2025, accessed 17 June 2026.
- Google Ads Help - About search themes in Performance Max, documentation consulted on June 17 2026.
- Google Ads Help - About Performance Max campaigns, documentation consulted on June 17 2026.
- Google Ads API - Performance Max asset groups, documentation consulted on June 17 2026.
- Google Ads Help - Multiply conversions with Performance Max, page consulted on June 17 2026.