Performance Max is one of the most powerful—and most easily misunderstood—campaign types in Google Ads.
It can use Google AI to find additional sales and leads across Search, Shopping, YouTube, Display, Discover, Gmail and Maps. It can optimise bids for every auction, select landing pages, combine creative assets, use product-feed data and redistribute spend towards the opportunities it predicts will produce the greatest return.
However, broader reach does not automatically mean incremental growth. Performance Max can also spend heavily on existing brand demand, repeat customers, low-quality leads, weak placements or products that generate revenue but little profit. The campaign will optimise towards the goals and values supplied to it—even when those goals do not represent genuine commercial success.
The difference between a profitable Performance Max campaign and an expensive black box is therefore not automation alone. It is the quality of the system around the automation:
accurate conversion tracking;
meaningful conversion goals and values;
strong product or service data;
commercially useful campaign segmentation;
relevant landing pages;
varied, high-quality creative assets;
first-party audience signals;
exclusions and brand controls;
enough conversion volume for Google to learn; and
reporting that distinguishes genuine growth from captured demand.
This guide explains how Performance Max works, how it has changed, how to use it for ecommerce and lead generation, and how to run it alongside Search, Standard Shopping, Demand Gen and other Google Ads campaigns.
What Is Performance Max?
Performance Max is a goal-based Google Ads campaign type that uses a single campaign to access most of Google’s advertising inventory.
Depending on eligibility, goals, assets and feeds, adverts may appear across:
Google Search;
Google Shopping inventory;
YouTube;
the Google Display Network;
Discover;
Gmail;
Google Maps;
Search partners; and
additional eligible Google surfaces and formats.
Performance Max does not simply create one advert and distribute it everywhere. Google combines the inputs available to produce different adverts for different inventories. A Search advert may use headlines and descriptions. A Shopping advert may use Merchant Center product data. A YouTube advert may use a supplied or generated video. Display, Discover and Gmail formats can combine text, images, logos and product information.
Google AI is used across:
auction-time bidding;
audience expansion;
channel and inventory selection;
budget allocation within the campaign;
advert and asset selection;
product selection;
landing-page selection when Final URL expansion is active;
conversion attribution; and
predictions about conversion probability and value.
This makes Performance Max fundamentally different from a traditional Search campaign. Search begins with keywords or AI Max search-term matching and remains a Search-specific campaign. Performance Max begins with a business goal and can pursue that goal across several channels.
For an overview of where Performance Max fits within the wider account, see our guide to Google Ads campaign types.
Performance Max Is a Campaign Type, Not a Complete Strategy
Performance Max is sometimes presented as a replacement for campaign planning: add a budget, upload a few assets, select a goal and let Google do everything else. That is rarely the best way to use it.
Google can predict which eligible auction is likely to convert. It cannot independently decide whether:
a form submission is a serious prospect or spam;
a telephone call came from the intended service area;
a sale produced an acceptable gross margin;
a discounted order is less valuable than a full-price order;
a new customer is more valuable than an existing customer;
an appointment was attended;
a returned ecommerce order should still count as revenue;
a lead fitted the company’s minimum contract size; or
a branded conversion would have occurred without paid advertising.
Those are business decisions. The advertiser must encode them through conversion goals, values, customer data, product data, structure and exclusions.
Our preferred approach is to treat Performance Max as a controlled expansion campaign. Establish reliable measurement and profitable high-intent activity first. Then use Performance Max to find additional demand across inventory that is harder to manage manually.
The Most Important Recent Performance Max Changes
Performance Max is now materially more transparent and controllable than the campaign type first released by Google. The most important changes for advertisers include:
Channel performance reporting: advertisers can see cost and results across eligible channels, download channel-distribution data and use diagnostics to investigate limited delivery.
Fuller Search terms reporting: query-level reporting now sits alongside grouped Search Terms Insights, making it easier to identify irrelevant intent, build negatives and transfer valuable queries into Search campaigns.
Campaign-level negative keywords: extensive negative-keyword coverage can be applied directly to PMax for eligible Search and Shopping activity.
Search-theme reporting: the source column can distinguish demand associated with supplied search themes from keywordless targeting, while usefulness indicators show whether themes are adding reach.
Richer asset reporting: asset and asset-group reports now include more cost, click, conversion and conversion-value metrics, with segmentation by dimensions such as device, time and network.
Revised Shopping campaign interaction: PMax no longer receives automatic priority simply because Standard Shopping contains the same product. Normal auction dynamics and Ad Rank now determine which eligible campaign serves.
More flexible retailer brand exclusions: product-feed campaigns can separate Search text-brand exclusions from branded Shopping eligibility in supported configurations.
URL rules for retail campaigns: URL-contains rules can guide product-feed PMax campaigns towards relevant website sections.
Customer lifecycle controls: new-customer, high-value new-customer and retention goals allow eligible advertisers to bid according to customer status and predicted value, with customer-acquisition reporting.
Additional demographic and device controls: age exclusions and device controls have expanded, although availability and scope can still vary by account.
Creative controls and diagnostics: advertisers have more visibility into generated assets, image use, video and channel-specific asset limitations.
Time-bound total budgets: eligible campaigns can use a total budget across a defined promotional period, allowing Google to pace spend according to predicted demand rather than enforcing the same daily amount throughout.
Additional local inventory: store-goal campaigns can access newer local surfaces, including eligible Waze advertising inventory in supported markets.
These changes address many early objections to PMax, but they do not turn it into a fully manual campaign. The advertiser can now see and steer more; Google still controls many auction, channel and creative decisions.
The Main Benefits of Performance Max
Performance Max can be highly effective when its inputs and objectives are sound.
Access to Google’s Inventory from One Campaign
The most obvious benefit is reach. One campaign can find potential customers while they search, shop, browse websites, watch YouTube, check Gmail, use Discover or look for a nearby business on Maps.
This is useful because customer journeys rarely remain within one channel. Someone may discover a product through video, research it through Search, compare it in Shopping and return later through a branded query.
Auction-Time Optimisation
Performance Max uses Smart Bidding to assess signals available at the time of each auction. These may include search intent, device, location, time, audience membership, previous behaviour and the predicted value of the action.
It can therefore vary bids more precisely than a fixed manual bid or a simple device modifier. Read our Google Ads bidding-strategies guide for the wider bidding context.
Automated Cross-Channel Budget Allocation
Within the campaign, Google can move investment between eligible channels and formats according to predicted marginal return. This reduces the need to set a separate budget for every inventory type.
The trade-off is reduced control. The advertiser cannot normally assign a fixed percentage of the Performance Max budget to Search, YouTube or Display. The campaign should therefore be judged as a combined system, while the newer channel report is used to understand how that system is distributing spend.
Product-Feed and Creative Combination
For ecommerce, Performance Max can combine Merchant Center product information with image, text and video assets. This provides Shopping coverage while also allowing products to appear in dynamic remarketing, YouTube and other formats.
First-Party Data Activation
Customer Match lists, website visitors and other audience signals can help the campaign understand which users and characteristics are valuable. These signals can accelerate learning, although they are not normally hard targeting restrictions.
New Customer and Lifecycle Goals
Eligible advertisers can use customer-acquisition settings to bid differently for new customers. High-value new-customer mode can use Customer Match data and customer value information to help Google predict which new customers may be particularly valuable.
Retention goals can also support campaigns that bid for lapsed customers. These features are useful only when customer-status data is accurate. If the new-customer list is incomplete, existing buyers may be reported as new.
Increasingly Useful Transparency and Control
Performance Max originally exposed limited information. It now offers much more useful reporting, including:
channel performance;
fuller search-term reporting;
Search Terms Insights;
search-theme source and usefulness information;
asset-group performance;
asset-level conversion and cost metrics;
placement reports;
product and listing-group reports;
landing-page information; and
campaign-level negative keywords.
These additions do not make Performance Max as controllable as a manually structured Search campaign, but they make it considerably easier to diagnose and govern.
The Main Risks and Limitations
Performance Max is not automatically suitable for every account.
It Optimises the Goal You Give It
If every form submission is a primary conversion, Performance Max will try to produce form submissions. It does not know that job applications, students, suppliers, overseas enquiries or unqualified consumers are worthless unless your measurement and exclusions communicate that information.
For ecommerce, the same problem appears when reported revenue ignores refunds, tax, shipping costs, discounts, fulfilment cost or product margin. A campaign can achieve a superficially attractive ROAS while promoting low-margin products.
Cross-Channel Averages Can Hide Poor Inventory
An acceptable campaign-level CPA may combine highly profitable Search or Shopping activity with weak Display or YouTube activity. Conversely, a channel that rarely receives the final conversion may still assist other interactions.
The new channel reporting helps, but it should be interpreted with attribution and customer-journey context. Do not assume that the channel with the lowest reported last-stage ROAS is necessarily worthless—or that every channel allocation chosen by Google is correct.
Brand Demand Can Inflate Results
Performance Max may serve on searches for your own brand. These conversions are usually cheaper because the user already knows the business.
Brand traffic is not inherently bad. The problem is measurement. A campaign that appears to generate a £12 CPA may look very different after separating brand, returning customers and genuinely incremental non-brand demand.
Use brand exclusions, campaign-level negative keywords and a dedicated brand bidding strategy where appropriate. Evaluate new-customer acquisition separately from total sales.
Audience Signals Are Not Traditional Targeting
Audience signals tell Google where to begin learning. They do not generally confine the campaign to only those people. Performance Max can expand beyond them when it predicts another user is likely to convert.
This is why a carefully named audience signal must not be mistaken for a reportable audience segment or a hard targeting boundary.
Creative and Landing Pages Can Be Automated
Text customisation can create additional copy from website content and existing assets. Final URL expansion can send users to another relevant page on the same domain. Google can also create video assets when suitable videos are not supplied.
These features can increase coverage, but they can also introduce outdated wording, unsuitable pages or weak brand presentation. Review generated assets and URL settings rather than assuming automation will preserve every message exactly.
Lead Generation Can Attract Spam and Low-Intent Enquiries
Performance Max reaches beyond high-intent keyword searches. Poor placement quality, weak form validation, consumer incentives and optimisation towards easy form submissions can lead to spam or low-quality enquiries.
The solution is not simply to pause Display or YouTube, because channel controls remain limited. The solution is a stronger lead-quality system: form protection, accurate location settings, negative terms, qualifying questions, call tracking, CRM stages and imported downstream outcomes.
How Performance Max Works with Search Campaigns
One of the most persistent myths is that Performance Max always overrides Search. The current rules are more nuanced.
When an eligible exact-match keyword in a Search campaign is identical to the user’s search term, the Search campaign is prioritised over Performance Max. Phrase match, broad match, AI Max and Performance Max search themes then operate within the wider prioritisation framework. Where candidates have equal priority, relevance and ultimately Ad Rank can determine which eligible advert enters the auction. Google documents this in its current keyword matching and Performance Max guidance.
Performance Max can still serve when the expected Search campaign is not eligible—for example, when it is limited by budget, its keyword has low search volume, adverts or landing pages are disapproved, or targeting requirements are not met.
The practical implications are:
retain exact-match Search keywords for strategically important, high-intent queries;
ensure the Search campaign has enough budget to participate;
do not rely on campaign names or intentions to control overlap;
treat broad, phrase, AI Max and PMax expansion as overlapping systems that require monitoring;
use Search Terms reports to identify which campaign is acquiring important demand;
exclude your brand from PMax when you need clean non-brand measurement; and
compare results at account level, not only by moving conversions between campaigns.
Performance Max is therefore complementary to Search, not a universal replacement for it. Search remains valuable for precise query strategy, messaging, landing-page control, impression-share management and commercial segmentation.
How Performance Max Works with Standard Shopping
Historically, Performance Max was automatically prioritised over Standard Shopping when both campaigns targeted the same products in the same account. That is no longer the general rule.
When Performance Max and Standard Shopping target the same eligible products, normal auction dynamics apply and the campaign with the stronger Ad Rank can serve. This creates more flexibility for advertisers that want to test or retain Standard Shopping alongside PMax.
It does not mean overlap is automatically beneficial. Two campaigns containing the same products and pursuing different targets can produce unstable traffic allocation and make analysis harder.
There are three sensible structures:
Separate product coverage. Put different product sets in PMax and Standard Shopping. This produces the clearest budget and performance control.
Controlled overlap for a test. Run both against the same products for a defined period, with comparable measurement and clear success criteria.
Strategic overlap. Retain Standard Shopping for query visibility or bid control while PMax pursues cross-channel growth, accepting that Ad Rank will influence which campaign serves.
For most advertisers, separation by product set is easier to govern. Read our ultimate Google Shopping guide for feed, bidding and structure guidance.
How Performance Max Works with Demand Gen, Display and YouTube
Performance Max can serve across visual and video inventory, but that does not make every separate upper-funnel campaign redundant.
Demand Gen is designed for more deliberate audience and creative-led demand generation across visual Google surfaces. Separate YouTube or Display campaigns can also provide objectives, audience structures, frequency strategies and creative tests that differ from PMax.
Use Performance Max when the priority is conversion optimisation across channels. Use a separate campaign when the business needs a distinct objective or control framework, such as:
awareness or consideration rather than immediate conversion;
a defined creative test;
a controlled audience strategy;
reach or frequency management;
product launches;
a dedicated remarketing message; or
channel-specific budgeting and reporting.
Avoid duplicating identical assets, audiences and objectives across several campaigns without a test plan. Google may simply redistribute attributed conversions instead of creating incremental demand.
Performance Max and AI Max Are Not the Same
Performance Max is a campaign type that can serve across Google’s channels. AI Max is an optimisation layer within Search campaigns.
AI Max can expand Search matching beyond existing keywords, customise text and select more relevant landing pages. It remains part of the Search campaign and now has its own reporting and controls.
Performance Max has its own asset groups, audience signals, search themes, cross-channel bidding and inventory access. Both can expand beyond tightly controlled keywords, so advertisers should coordinate their search-term, brand and URL strategies.
Read our guide to Google Ads AI Max before enabling both systems across the same account.
When Should You Use Performance Max?
Performance Max is most likely to work well when:
tracking is accurate and deduplicated;
the primary goals represent meaningful business outcomes;
the account already has useful conversion history;
there is enough budget and conversion volume for learning;
ecommerce product data is complete and accurate;
lead-generation businesses can return qualified-lead or sales data;
the website contains strong, relevant landing pages;
the advertiser can supply credible images, video, copy and brand assets;
customer and audience data are available;
geographic targeting matches the real service area; and
the business can tolerate some automated channel allocation.
When Should You Delay or Avoid Performance Max?
Consider delaying it when:
conversion tracking is missing, duplicated or inaccurate;
the only tracked actions are page views or weak micro-conversions;
lead spam is not controlled;
there are too few conversions for automated bidding to learn;
every product or service needs a different budget but data is sparse;
legal or brand restrictions require exact advert and placement control;
the sales process cannot identify qualified leads or customers;
Merchant Center contains frequent disapprovals or inaccurate prices;
landing pages are outdated or commercially irrelevant; or
the account needs diagnostic data from controlled Search or Standard Shopping first.
For lead generation, we prefer approximately 30–50 meaningful conversions per month before relying heavily on broad automated expansion. Around 15 conversions in 30 days may be a workable lower starting point for a deeper-funnel action, but more data normally produces more stable learning. Conversion quality matters more than raw count.
Performance Max for Ecommerce
Ecommerce is often the strongest use case because purchases, revenue, products and customer status can be measured directly.
That does not make setup automatic. PMax performance depends heavily on Merchant Center data, tracking, values, structure and economics.
Start with a High-Quality Product Feed
The product feed supplies much of the targeting and advert content for Shopping formats. Improve:
product titles;
descriptions;
Google product categories;
product types;
brand and GTIN data;
colour, size, material and variant attributes;
price and sale price;
availability;
shipping and returns information;
high-resolution images;
additional images;
custom labels; and
landing-page consistency.
Product titles should reflect how people search while remaining accurate. Put the most useful differentiators early. Avoid stuffing irrelevant terms.
Custom labels are especially important because they allow products to be grouped by commercial attributes such as:
gross margin;
bestseller status;
season;
price band;
stock position;
clearance status;
new versus established product;
repeat-purchase potential; and
strategic category.
See our Google Shopping setup checklist and Google Shopping tips for the wider retail foundation.
Choose the Right Ecommerce Conversion Value
Standard purchase revenue is a useful starting point, but revenue is not profit.
If two products each sell for £500 but one produces £200 gross profit and the other produces £50, optimising both to the same revenue-based ROAS can direct spend towards the less profitable item.
Advanced accounts can improve the signal through:
margin-adjusted values;
conversion value rules;
product segmentation by margin;
new-customer values;
lifetime-value estimates;
refund and cancellation adjustments; and
imported offline revenue for telephone or in-store sales.
Our value-based bidding guide explains how to move beyond treating every conversion as equal.
Segment Ecommerce Campaigns Only When There Is a Commercial Reason
Do not create a PMax campaign for every product category merely because the website has categories. Excessive segmentation divides conversion data and budgets.
Create separate campaigns when products require different:
target ROAS levels;
budgets;
countries or languages;
seasonal schedules;
conversion goals;
new-customer strategies;
stock priorities;
profit models; or
operational ownership.
Within a campaign, listing groups and asset groups can organise products without fragmenting the budget.
A practical retail structure might include:
core profitable products;
lower-margin or constrained-stock products;
new or experimental products;
clearance products; and
a separate brand or market where economics differ.
Feed-Only Performance Max
Retail advertisers can create a campaign using a Merchant Center feed without manually adding text, image or video assets. This is often called feed-only PMax.
If this structure is required, the campaign must be created without adding manual creative assets. Once assets are added and minimum requirements apply, it may not be possible to remove everything and return the campaign to its original feed-only state.
Feed-only PMax can keep activity more Shopping-led, but it should not be treated as a guaranteed Shopping-only control. Google may still generate assets, and the campaign remains Performance Max. If true channel and bid control are required, Standard Shopping may be more appropriate.
New Customer Acquisition for Ecommerce
New-customer bidding can be useful when growth depends on customer acquisition rather than harvesting repeat purchases.
Before enabling it:
upload accurate existing-customer lists;
ensure purchase tags distinguish new and existing customers where supported;
estimate incremental lifetime value conservatively;
decide whether to bid higher for new customers or focus exclusively on them;
monitor customer acquisition cost separately from blended ROAS; and
check whether discounts for first-time buyers reduce contribution margin.
An apparent new-customer uplift is unreliable if Google cannot recognise a large proportion of existing buyers.
Ecommerce KPIs
Track more than campaign ROAS:
conversion value and ROAS;
gross profit or contribution margin;
new-customer acquisition cost;
new versus returning-customer revenue;
average order value;
conversion rate;
product-level spend and revenue;
refund and cancellation rate;
impression and click share where available;
stock availability;
assisted revenue; and
marginal return as spend increases.
A campaign can achieve its average target ROAS while the next pound of spend is less efficient. Scale should be based on marginal profitability, not only historic average performance.
Performance Max for Lead Generation
Lead generation is more difficult because the initial conversion often occurs before commercial value is known.
A form submission is not a customer. A telephone call is not automatically qualified. A booked appointment may not attend. Performance Max needs feedback from deeper in the funnel if it is expected to find better prospects rather than simply more enquiries.
Build the Lead Measurement Funnel First
A mature lead-generation measurement sequence can include:
website enquiry or tracked telephone call;
Marketing Qualified Lead;
Sales Qualified Lead;
appointment or consultation attended;
Sales Opportunity;
customer or closed sale; and
revenue or estimated lifetime value.
Use website conversions for fast feedback, then send selected CRM outcomes back to Google Ads. Our offline conversion tracking guide explains how imported events close the measurement gap.
Enhanced Conversions for Leads can improve matching through hashed first-party data, while click identifiers such as GCLID, GBRAID and WBRAID remain useful where available.
Select Primary and Secondary Goals Carefully
Primary conversion actions generally influence the main Conversions column and may guide bidding when included in the campaign’s selected goals. Secondary actions are usually observed in All conversions, although custom-goal configurations can change this behaviour.
A sensible arrangement might be:
Primary: Qualified Lead, Sales Opportunity or Customer;
Secondary: raw form submission, short call, live-chat start or brochure download.
The exact arrangement depends on volume and delay. If customers are too rare for stable bidding, optimise towards a sufficiently frequent qualified stage while retaining customer and revenue imports for evaluation.
Read our guide to primary and secondary Google Ads conversions before changing campaign goals.
Use Values for Lead Quality
Target CPA treats every included conversion as equally valuable. Value-based bidding allows different outcomes to carry different values.
For example:
raw enquiry: £5 observation value;
Qualified Lead: £50;
Sales Opportunity: £250;
customer: actual or expected revenue.
Do not invent arbitrary values merely to make a report look sophisticated. Estimate values from close rates, average revenue and gross margin, then review them against actual CRM outcomes.
Prevent Spam and Poor-Quality Leads
Lead quality requires protection at several levels:
use server-side and form-level spam controls;
validate telephone numbers and email addresses;
add qualifying questions;
avoid rewarding an effortless form completion with no buying context;
state service locations, prices or minimum requirements clearly;
exclude irrelevant locations and use presence-based location settings where appropriate;
review search terms and add negatives;
exclude job, training, DIY, free, complaint and supplier intent where irrelevant;
monitor placements and content-suitability settings;
assess calls by duration and, ideally, sales outcome;
send disqualified and qualified statuses into the CRM consistently; and
optimise towards Qualified Leads or customers when volume permits.
Our guide on improving Google Ads lead quality covers this system in more detail.
Use CRM Integration as a Feedback Loop
A Google Ads CRM integration should capture the original advertising identifiers and update the lead as it moves through the pipeline.
The integration can then:
import Qualified Leads;
import Sales Opportunities;
import customers and revenue;
share customer and suppression audiences;
distinguish new and existing customers;
report cost per pipeline stage;
connect campaigns with sales outcomes; and
provide the bidding system with higher-quality signals.
This is the central requirement for scaling PMax lead generation responsibly. Without it, Google often learns which users are most willing to submit a form, not which users are most likely to buy.
Lead-Generation KPIs
Evaluate:
cost per raw lead;
valid lead rate;
cost per Qualified Lead;
opportunity rate;
cost per Sales Opportunity;
close rate;
customer acquisition cost;
revenue and profit;
lead-to-customer delay;
lead quality by channel and asset group;
brand versus non-brand results; and
geographic quality.
Never scale a PMax lead campaign from CPL alone when downstream sales data show poor quality.
Conversion Tracking: The Foundation of Performance Max
Performance Max cannot compensate for bad measurement. It amplifies it.
Before launch, audit:
whether every primary action fires correctly;
whether transactions pass the correct value and currency;
whether purchase events are duplicated by Google Ads and GA4 imports;
whether form thank-you pages can be reloaded and counted twice;
whether telephone calls meet a meaningful duration threshold;
whether consent settings and enhanced conversions are working;
whether cross-domain journeys retain attribution;
whether booking, checkout and payment systems are tracked;
whether CRM identifiers and timestamps are captured;
whether refunds, cancellations and test transactions are excluded; and
whether campaign-specific goals contain only the intended actions.
Where possible, we prefer the native Google Ads conversion tag for bidding-critical actions, with GA4 providing wider behavioural analysis. See the full Google Ads conversion-tracking guide.
Choosing a Bidding Strategy
Performance Max normally uses one of two bidding families.
Maximise Conversions and Target CPA
Use this when conversions are broadly comparable in value or when the account has not yet built reliable values.
Maximise Conversions attempts to generate as many conversions as possible within the budget.
Maximise Conversions with a target CPA adds an efficiency target.
An unrealistically low target can restrict auctions and prevent learning. If historical CPA is £100, launching a broader campaign at £40 does not create efficiency by instruction; it may simply prevent delivery or push the system towards the easiest low-quality conversions.
Maximise Conversion Value and Target ROAS
Use this when reliable values distinguish outcomes.
Maximise Conversion Value pursues the greatest reported value within budget.
Maximise Conversion Value with a target ROAS adds a return constraint.
This is usually the natural retail choice because transaction values vary. It can also be powerful for lead generation when qualified stages, sales or revenue are imported.
Avoid setting a highly restrictive target ROAS at launch without evidence. Begin from historic account economics, allow learning, then move the target gradually.
Budget and Learning
Budget must be sufficient to acquire enough conversions for the selected goal.
If the target CPA is £80 and the campaign receives only £20 per day, it may take several days to produce a single conversion. Learning will be slow and daily performance volatile.
A useful planning principle is to fund several expected conversions per week rather than applying an arbitrary minimum daily budget. Consider:
expected CPA or order value;
conversion delay;
click costs;
market size;
seasonality;
the selected target;
the volume of the optimisation action; and
total account budget alongside existing campaigns.
Google may display Low, Medium and High suggestions through its budget panel. Treat these as forecasts, not financial instructions. The correct budget is the amount the business can invest profitably while preserving enough funding for essential Search, Shopping or brand campaigns.
Avoid frequent large budget changes. Changes to budget, goals, targets, assets and structure at the same time make it difficult to identify causes and can destabilise learning.
Structuring Performance Max Campaigns
Performance Max benefits from consolidation, but consolidation should not override real commercial differences.
Create separate campaigns for differences that require separate:
budgets;
bidding targets;
conversion goals;
countries or languages;
product margins;
business units;
customer-acquisition settings;
seasonal schedules; or
legal and operational controls.
Use asset groups for coherent themes inside those campaign boundaries.
Do not use an asset group as if it were a traditional ad group with guaranteed targeting or budget. Asset groups organise assets, URLs, products and signals; Google still optimises at campaign level.
Read our Google Ads account-structure guide before dividing limited data among many campaigns.
Building Effective Asset Groups
An asset group should represent one coherent commercial theme, such as:
a service;
a product category;
a customer need;
a promotion;
a location group;
a use case; or
a group of closely related products.
Each asset group should align:
headlines and descriptions;
images and logos;
video;
landing pages;
product listing groups;
audience signals; and
search themes.
Avoid mixing unrelated offers because Google may combine an image for one service with copy and a landing page for another.
Google currently supports a broad asset set, including multiple headlines, long headlines, descriptions, images in different ratios, logos and videos. Supply strong assets rather than relying only on the minimum. Google’s asset-group guidance recommends varied coverage and allowing enough time before replacing apparently weak assets.
Ad Strength Is Not the Business Objective
Ad Strength evaluates asset coverage and variety. It is not a direct measure of profit.
Improve poor coverage where assets are genuinely missing, but do not add weak or off-brand creative only to move an indicator from Good to Excellent. Use asset-level performance, conversion quality and commercial results.
Creative Principles
Provide:
a clear value proposition;
service or product-specific headlines;
proof, reviews or credentials where permitted;
concrete benefits rather than vague claims;
strong calls to action;
images showing the product or outcome;
brand-consistent logos and colours;
video designed for mobile and without relying on sound; and
several genuine concepts, not superficial colour variations.
For video, include strong early branding, subtitles, visible product or service context and a clear next step. Supply your own video where brand quality matters; otherwise, Google may generate one from available assets.
Audience Signals and First-Party Data
Audience signals can include:
Customer Match lists;
website visitors;
app users;
converters;
cart abandoners;
high-value customers;
relevant in-market segments;
demographic information; and
custom segments based on relevant search behaviour or websites.
Prioritise first-party signals that correspond with business value. A list of profitable customers is generally more instructive than a broad interest audience.
Separate signals where they represent distinct customer groups, but remember that signal membership is not a hard boundary. Google can find users outside the supplied audiences.
Maintain data quality:
remove invalid records;
refresh lists;
distinguish prospects from customers;
create high-value segments where volume permits;
use suppression lists where appropriate;
obtain valid consent; and
avoid uploading categories of sensitive data that are not permitted.
Search Themes
Search themes let advertisers tell Performance Max about queries customers may use. They are guidance, not conventional positive keywords.
Use them when:
a new campaign lacks history;
the landing page does not contain the language customers use;
the product or service has specialist terminology;
a new range or market needs direction;
important use cases are not obvious from the assets; or
the business has search insight that Google may not infer quickly.
Do not copy hundreds of loose keywords into themes. Use focused, high-intent concepts that add information.
The search-theme usefulness indicator can show whether a theme is adding reach beyond what PMax would find through keywordless targeting. Search Terms Insights can also indicate whether demand came through a supplied search theme or keywordless expansion.
Search themes share priority with phrase and broad-match Search candidates under the current matching framework. Exact-match Search remains important for queries that require dedicated control.
Final URL Expansion and Page Feeds
When Final URL expansion is active, Google can replace the supplied Final URL with another relevant page on the same domain and generate copy that matches it.
This can discover useful landing pages and additional search demand. It can also send traffic to:
blog posts;
recruitment pages;
support content;
irrelevant products;
outdated offers;
privacy or policy pages;
pages outside the intended service area; or
pages that convert but produce low-value enquiries.
Use URL exclusions to remove unsuitable sections. Page feeds and URL rules can guide the campaign towards approved page groups. Retail campaigns can also use URL-contains rules to align traffic with relevant website categories.
Turn expansion off when the campaign must use one controlled landing page, legal wording must remain exact or the website contains many unsuitable pages. If it remains on, review the landing-page report regularly.
Brand Exclusions and Negative Keywords
Performance Max now provides much stronger Search and Shopping controls.
Brand Exclusions
Brand exclusions can prevent the campaign from serving for specified brands, including many misspellings and related variants recognised by Google.
Retail advertisers can apply brand exclusions more selectively, including excluding a brand from Search text formats while retaining eligible branded Shopping activity.
Use brand exclusions when:
you run a separate brand Search campaign;
you need to measure non-brand incrementality;
competitor-brand traffic is unprofitable or legally sensitive; or
PMax is claiming demand that another campaign should manage.
Campaign-Level Negative Keywords
Campaign-level negative keywords can now be applied directly to Performance Max. Google’s current documentation permits large negative lists and applies these negatives to eligible Search and Shopping inventory—not to every Display or YouTube placement.
Build negatives from:
the full Search terms report;
Search Terms Insights;
customer and sales-team feedback;
irrelevant products or services;
employment and training intent;
research-only intent;
free, template or DIY terms;
excluded locations;
support queries from existing customers; and
consistently unprofitable themes.
Do not over-block useful demand after a few clicks. Evaluate intent, conversion delay and enough data. Our negative-keyword guide provides a complete optimisation framework.
Other Controls and Exclusions
Depending on campaign type, account eligibility and feature availability, Performance Max can also use:
location and language settings;
age-based demographic exclusions;
device controls;
account-level negative keywords;
content-suitability settings;
excluded content themes and types;
placement exclusions;
IP exclusions where supported at account level;
URL exclusions;
product listing-group exclusions;
data exclusions for tracking outages;
seasonality adjustments for short, exceptional conversion-rate changes; and
brand suitability controls.
Some controls have rolled out gradually or remain account-dependent. Check the available settings in the relevant account rather than assuming every interface exposes the same option.
The New Channel Performance Report
Channel reporting is one of the most important improvements to Performance Max.
The report shows how the campaign distributes activity across Search, Shopping-related formats, YouTube, Display, Discover, Gmail, Maps and Search partners, subject to the campaign’s actual eligibility and delivery.
Google’s channel-reporting documentation and launch guidance describe:
a campaign-level channel visualisation;
cost by channel;
a downloadable channel-distribution table;
clicks, conversions, cost and conversion-value metrics;
ROI columns;
product-data format breakdowns;
segmentation by conversion action;
segmentation by advert event type, including engaged-view conversions;
links to relevant placement information; and
channel diagnostics for limited delivery.
Asset reporting can also be segmented by networks, device, time and conversion data. Account-level bulk reporting makes it easier to analyse several PMax campaigns together.
How to Use the Channel Report
Use it to answer:
Which channels receive most spend?
Is reported performance dominated by Search or Shopping?
Is YouTube contributing view-through or engaged-view conversions?
Are specific channels generating the selected primary actions or only weak goals?
Is a channel not serving because assets, locations or feeds are missing?
Is an aggressive tCPA or tROAS target restricting inventory?
Are product-feed formats producing most of the value?
Did a performance change coincide with a shift in channel allocation?
Do not use it merely to declare one channel good and another bad. Attribution differs by interaction type, and PMax is designed to optimise the combined campaign. Use channel data for diagnosis, asset planning and hypothesis development, then validate changes through tests and business outcomes.
Full Search Terms Reporting and Search Terms Insights
Performance Max now offers far more search visibility than its earliest versions.
The fuller Search terms report provides query-level information similar to Search and Standard Shopping reporting for eligible activity. It can be used to:
find irrelevant terms;
add campaign-level negatives;
identify high-intent queries for exact-match Search campaigns;
improve advert copy;
create better landing pages;
discover new product or service language;
identify brand dependence;
compare search themes with keywordless matching; and
investigate lead-quality problems.
Search Terms Insights group related demand into themes and categories. The source column can indicate whether demand was associated with a search theme or discovered through keywordless targeting.
Use both reports. Query reports may withhold some low-volume information, while insight categories can be too broad for negative-keyword decisions. Our Google Ads Search terms report guide explains the review process.
Asset and Asset-Group Reporting
Asset reporting has progressed beyond simple labels such as Low, Good and Best.
Advertisers can inspect metrics such as:
impressions;
clicks;
cost;
conversions;
conversion value;
conversion value divided by cost;
average CPC; and
performance segmented by device, time, conversion and network where available.
Asset-group reporting can be segmented and downloaded, making it easier to compare themes and product groups.
Interpret asset data carefully. An asset is selected in combination with other assets, audiences, formats and inventory. A headline with few conversions may be underused rather than inherently weak. A video can influence a journey without receiving the final click.
Use the reports to form creative hypotheses:
Which product benefits appear in high-value combinations?
Which image concepts receive meaningful volume?
Are videos serving on YouTube and producing assisted actions?
Does one asset group attract better-qualified leads?
Are mobile assets outperforming desktop-oriented designs?
Does a network segment expose a creative-format gap?
Replace assets in controlled batches and allow enough time for new combinations to learn.
Placement Reporting and Brand Safety
Placement reporting can show websites, apps and YouTube placements where Performance Max adverts served. It is valuable for brand safety and anomaly investigation, but it is not a complete channel profitability report.
Review:
unsuitable websites or apps;
children’s content where inappropriate;
parked domains;
low-quality app categories;
irrelevant YouTube channels;
placement spikes associated with poor lead quality; and
content-suitability settings.
Use account-level placement exclusions and content controls where justified. Do not expect Search and Shopping negative keywords to block visual-inventory placements.
Reporting Performance Max Properly
A good report should separate business performance from platform activity.
Campaign-Level Metrics
cost;
conversions;
conversion value;
CPA;
ROAS;
conversion rate;
click and impression trends;
budget status; and
bidding-target performance.
Diagnostic Breakdowns
channel;
conversion action;
asset group;
asset;
product or listing group;
search term and insight category;
landing page;
location;
device;
day and hour;
new versus existing customer; and
placement.
Business Metrics
Qualified Leads;
opportunities;
customers;
revenue;
gross profit;
customer acquisition cost;
new-customer contribution;
lead-to-sale rate;
cancellation or refund rate; and
profit after advertising cost.
Google Ads should not be the sole source of truth for revenue. Reconcile it with the CRM, ecommerce platform, payment processor and finance records. Attribution windows and models mean platform revenue will not always equal accounting revenue.
How to Launch Performance Max Alongside Existing Campaigns
Performance Max should be introduced with a controlled plan.
Step 1: Protect Proven Campaigns
Identify campaigns that reliably produce profitable sales or qualified leads. Do not remove their budget simply to fund PMax.
Protect:
exact-match high-intent Search;
brand Search where strategically necessary;
proven Standard Shopping product groups;
campaigns with distinct locations or offers; and
campaigns that provide essential query or product insight.
Step 2: Define the Incremental Role
State what PMax is expected to add:
new non-brand customers;
additional ecommerce revenue;
cross-channel reach;
growth for selected product categories;
qualified leads beyond existing Search; or
reactivation of lapsed customers.
Without this statement, any attributed conversion may be mistaken for success.
Step 3: Clean Measurement and Goals
Audit tags, values, customer lists, CRM imports, primary conversions and campaign-specific goals.
Step 4: Decide Overlap Deliberately
Choose whether Search terms, products and audiences should overlap. Use exact match, brand exclusions, product filters, listing groups, negatives and URL controls to implement that decision.
Step 5: Allocate a Test Budget
Use a budget large enough to produce meaningful data without starving proven activity. Document the account’s pre-launch baseline.
Step 6: Launch with Complete Inputs
Provide relevant assets, feeds, audience signals, search themes, exclusions and landing pages at launch. Do not use a partially built campaign and assume every gap can be corrected after the learning phase.
Step 7: Let the Campaign Learn—But Monitor Risk
Avoid daily structural changes, but monitor spend, conversion tracking, lead spam, locations, search terms, products and disapprovals from the start.
Step 8: Assess Incrementality
Compare total account outcomes before and after launch:
Did total sales, qualified leads or profit increase?
Did PMax merely take branded conversions from Search?
Did Standard Shopping lose volume without an account-level gain?
Did new-customer share improve?
Did blended CPA or ROAS improve?
Did lead quality deteriorate?
Campaign attribution alone cannot answer these questions.
Performance Max Experiments
Where available, Google Ads experiments can compare adding PMax with an existing setup or test selected campaign changes.
Good tests include:
existing campaigns versus existing campaigns plus PMax;
different asset strategies;
feed-only versus asset-rich approaches;
new-customer settings;
different target levels; and
Final URL expansion on versus off.
Run one meaningful experiment at a time. Overlapping tests can contaminate results. Define the hypothesis, primary metric, minimum duration and decision threshold before launch.
Account for conversion delay and seasonality. A short test during a promotion may measure the promotion rather than the campaign design.
A Practical Performance Max Optimisation Routine
Performance Max still requires active management.
Several Times per Week During Launch
confirm spend and tracking;
review disapprovals and Merchant Center diagnostics;
check lead validity or order quality;
inspect location anomalies;
monitor major search-term issues;
check budget limitation and target restriction; and
verify that imported CRM events are arriving.
Weekly
review primary conversion actions;
examine Search terms and add justified negatives;
assess products with spend but no value;
review asset-group and channel trends;
check landing pages and Final URL expansion;
inspect placement and brand-safety issues;
compare qualified-lead or margin data; and
document changes.
Monthly
reconcile platform revenue with business records;
review new versus existing customers;
calculate qualified-lead and customer acquisition costs;
assess channel distribution and asset-network segments;
refresh audience and customer data;
evaluate target CPA or ROAS changes;
review product segmentation and stock;
introduce new creative concepts;
compare total account incrementality; and
conduct a structured Google Ads optimisation review.
Optimisation frequency should reflect data volume. A high-spend retailer may need daily product analysis, while a lower-volume B2B account requires longer evaluation windows.
Common Performance Max Mistakes
Launching Before Tracking Is Ready
Automation learns immediately. Incorrect goals during the first weeks can shape spend towards the wrong users.
Optimising for Every Conversion Action
Page views, phone-button clicks, form starts and purchases should not all have equal bidding importance.
Treating Audience Signals as Targeting
The campaign can expand beyond them. Use conversion quality and exclusions as additional boundaries.
Combining Unrelated Products or Services
This produces weak creative combinations, unclear reporting and shared targets across different economics.
Excessive Campaign Segmentation
Too many campaigns divide budgets and conversion data. Separate only when a commercial decision requires it.
Ignoring Brand Traffic
Branded conversions can make PMax look more incremental than it is.
Using Revenue Without Margin
High-revenue products are not always high-profit products.
Allowing Final URL Expansion Without Review
The campaign may discover pages the advertiser never intended to promote.
Supplying Weak or No Video
Generated video may be acceptable for coverage but unsuitable for a premium brand.
Changing Too Much Too Often
Simultaneous changes to targets, budgets, assets and goals prevent reliable diagnosis.
Judging Only the PMax Campaign
The campaign may reassign demand from Search or Shopping. Account-level sales, leads and profit determine whether it added value.
Performance Max Troubleshooting
The Campaign Is Not Spending
Check:
overly restrictive tCPA or tROAS;
insufficient budget relative to expected CPA;
conversion tracking and goal eligibility;
Merchant Center or advert disapprovals;
narrow location settings;
limited product eligibility;
asset policy issues;
negative keywords or brand exclusions that are too broad;
campaign dates; and
whether the conversion goal has enough history.
Spend Is High but Conversions Are Low
Check channel distribution, search terms, products, landing pages, conversion tracking, target settings and the relevance of asset groups. Confirm that the offer and website convert traffic from more than branded Search.
ROAS Looks Good but Profit Is Weak
Analyse margin, refunds, shipping, discounting, new-customer cost and product mix. Replace raw revenue values or segment products by economics.
Lead Volume Is High but Quality Is Poor
Inspect search terms, locations, placements, forms, call recordings or outcomes and CRM stages. Move weak form submissions to secondary status when deeper-funnel volume supports bidding. Import Qualified Leads and customers.
Search Campaign Volume Fell After Launch
Review Search eligibility, exact-match coverage, budgets, Search terms, brand traffic and PMax search themes. A fall in Search volume is not automatically harmful if total qualified conversions and profit increased; it is a problem if PMax merely obscured demand without an account-level gain.
Standard Shopping Volume Fell
Check overlapping products, targets, budgets and Ad Rank. Separate product sets if campaign allocation is unstable or reporting control is required.
PMax Is Serving on the Brand
Apply an appropriate brand exclusion or campaign-level negatives, maintain the dedicated brand campaign and ensure that it is eligible and funded.
The Wrong Landing Pages Are Appearing
Review Final URL expansion, URL exclusions, page feeds, URL rules and website content. Turn expansion off when a controlled destination is essential.
A Performance Max Launch Checklist
Before launch, confirm:
the commercial objective is defined;
primary and secondary conversions are correct;
conversion values and currency are accurate;
duplicate events have been removed;
enhanced conversions are working;
CRM or offline outcomes are connected where required;
Merchant Center is linked and products are approved;
product titles, images and custom labels are ready;
campaign segmentation reflects budgets and economics;
asset groups align assets, pages, products and themes;
high-quality text, image, logo and video assets are supplied;
audience signals include useful first-party data;
search themes add real business knowledge;
brand exclusions are decided;
negative keywords are prepared;
URL expansion and exclusions are configured;
locations use the intended presence settings;
content and placement controls are reviewed;
the bidding target is realistic;
the budget can produce sufficient conversions;
existing Search and Shopping campaigns are protected;
the test baseline and success criteria are documented; and
lead quality, profit and incrementality reporting are available.
Frequently Asked Questions About Performance Max
Does Performance Max Replace Search Campaigns?
No. It is designed to complement keyword-based Search. Search remains better for precise query, advert, landing-page and budget control. Exact-match Search keywords that are identical to the query retain priority when eligible.
Does Performance Max Take Priority Over Standard Shopping?
No longer automatically. When both target the same eligible products, normal auction dynamics and Ad Rank can determine which campaign serves. You can run both, although distinct product coverage is often easier to manage.
Can Performance Max Work for Lead Generation?
Yes, but it needs stronger governance than ecommerce. Use spam protection, qualifying forms, call tracking, CRM integration, offline conversions and optimisation towards Qualified Leads, opportunities, customers or revenue.
Is Performance Max Better for Ecommerce?
It is often easier to make effective because transactions, products and values are available quickly. Success still depends on feed quality, margin, tracking, customer status and campaign structure.
How Long Does Performance Max Take to Learn?
There is no universal period. Learning depends on conversion volume, delay, budget, market demand and the size of the changes made. Avoid drawing conclusions from a few days, and include the full conversion-delay window when evaluating results.
How Many Performance Max Campaigns Should I Run?
As few as the commercial strategy allows. Create another campaign when you need a separate budget, target, goal, market or lifecycle setting—not merely because another website category exists.
Should I Use Maximise Conversions or Target CPA?
Maximise Conversions is useful when seeking volume within budget and when a stable target is not yet known. Add a realistic target CPA when the business needs an efficiency constraint and has enough history.
Should Ecommerce Use Target ROAS?
Usually, once purchase values are reliable and sufficient history exists. New campaigns may begin with Maximise Conversion Value before introducing a realistic tROAS. Profit-based values are better than raw revenue where margins vary significantly.
Should I Exclude My Own Brand?
Exclude it when you need PMax to prove non-brand incrementality or when a dedicated brand campaign should control that traffic. Retain it only when the strategic benefit is understood and brand performance is reported separately.
Are Search Themes Keywords?
No. They are signals that guide Performance Max towards relevant search concepts. They do not restrict matching in the way a tightly controlled keyword structure can.
Can I See Performance Max Search Terms?
Yes. Performance Max now provides fuller search-term reporting as well as grouped Search Terms Insights. Use both to identify intent, add negatives and build controlled Search coverage.
Can I See Spend by Channel?
The channel performance report provides channel-level cost and performance information, with downloadable tables, format breakdowns, conversion segmentation and diagnostics where available.
Can I Set a Separate Budget for YouTube or Display Inside PMax?
Not normally. Google allocates the campaign budget across eligible inventory. Use separate campaigns when a channel requires its own budget or objective.
Does a High Ad Strength Guarantee Better Results?
No. Ad Strength indicates asset coverage and variety. Profit, qualified leads, customers and incremental revenue determine business success.
Should I Turn on Final URL Expansion?
Use it when the website has many relevant, conversion-ready pages and URL exclusions are maintained. Turn it off when message, legal wording, offer or landing-page control is more important.
Final Thoughts on Performance Max
Performance Max has matured substantially. It now provides search-term visibility, campaign-level negatives, stronger brand and URL controls, richer asset reporting and a channel performance report that reveals much more about where spend and conversions occur.
It has also become easier to run alongside existing campaigns. Exact-match Search retains priority for identical eligible queries, while Performance Max and Standard Shopping no longer follow a blanket rule that automatically gives PMax priority. Ad Rank, eligibility, matching and campaign controls now play a more important role.
These changes improve transparency, but they do not remove the need for strategy.
The best Performance Max campaigns are built on accurate business data. Ecommerce advertisers should supply clean feeds, correct revenue, customer status and preferably margin information. Lead-generation advertisers should connect Google Ads with the CRM and return Qualified Leads, opportunities, customers and revenue.
Start with high-intent demand and reliable measurement. Use Performance Max to expand beyond what proven Search and Shopping campaigns already capture. Protect brand and priority activity, review search terms and channels, and judge success by total customers, revenue and profit—not by the campaign’s headline CPA or ROAS alone.
When the business controls the inputs, Performance Max can become a powerful growth system. When the inputs are weak, it simply automates the wrong decisions faster.
Related One PPC Google Ads Guides
Continue building the measurement, retail and optimisation system needed to use Performance Max effectively:
Official Google Ads References
For current platform documentation, refer to Google’s guides to Performance Max campaigns, keyword and campaign prioritisation, channel performance reporting, asset-group best practices and the newer Performance Max reporting improvements.