Performance Max is a Google Ads campaign type that uses one budget and automated bidding to show ads across Search, Shopping, YouTube, Display, Discover, Gmail and Maps. Shopping campaigns show product listings from your Merchant Center feed. For eCommerce, both depend on a clean product feed, accurate conversion values and clear goals based on profit.
For most online stores, Google is still where shoppers compare products, prices and sellers, and Performance Max has become Google’s default way to reach them. It can work very well, and it can also quietly spend on brand searches and remarketing while reporting a healthy return. The difference is rarely the campaign settings alone. It is the quality of what you give the system: the product feed, the conversion values, the audience signals and the business rules. This guide explains how Performance Max and Standard Shopping work, when to use each, how to structure campaigns by margin, which controls Google added in 2025, and how to tell real growth from flattering reports.
Key takeaways
- The feed is the targeting. Product titles, categories, attributes and images decide which searches your products appear for.
- Bid on profit, not revenue. Group products by margin and pass values that reflect what each sale is really worth.
- Separate new and returning customers. Without this, Performance Max can look strong by serving people who would have bought anyway.
- Use the 2025 controls. Search terms reporting, negative keyword lists, brand exclusions and channel reporting now give more visibility than before.
- Keep Standard Shopping as a tool. It still suits tight control, testing and specific product groups.
What changed in Performance Max in 2025?
Advertisers had long asked for more visibility and control. In January 2025, Google’s announcement of new Performance Max features brought campaign-level negative keywords to all advertisers, a new customer acquisition goal with a high-value mode that uses Customer Match data, brand exclusions for retail campaigns that apply to Search text ads without affecting Shopping ads, and segmented asset group reporting. In August 2025, a Google Ads Help update added search terms reporting for all Performance Max campaigns and through the API, raised the limit on search themes from 25 to 50 per asset group, added campaign-level negative keyword lists, made device and age targeting fully available, and opened a channel performance report beta.
| Control | What it lets you do | How to use it |
|---|---|---|
| Search terms reporting | See the queries that triggered your ads | Review weekly; add irrelevant themes as negatives |
| Campaign-level negative keyword lists | Block searches you never want to pay for | Shared lists for jobs, free, repairs or competitor terms you avoid |
| Brand exclusions | Stop text ads serving on your brand searches | Keep brand in its own Search campaign for clean reporting |
| New customer acquisition goal | Bid more for, or only for, new customers | Upload customer lists and value new buyers appropriately |
| Channel performance report (beta) | See results by Search, Shopping, YouTube and other channels | Check whether spend matches where your buyers convert |
| Up to 50 search themes per asset group | Give stronger hints about relevant searches | Add themes from real customer language and search data |
| Device and age controls | Limit delivery where it cannot convert | Use only with evidence, to avoid starving the algorithm |
Should you use Performance Max or Standard Shopping?
Google’s own help documentation describes Performance Max as a goal-based campaign type that gives access to all Google Ads inventory from a single campaign. Standard Shopping runs only Shopping ads from your feed, with more manual control.
| Factor | Performance Max | Standard Shopping |
|---|---|---|
| Inventory | All Google channels from one campaign | Shopping ads only |
| Control | Signals, goals and exclusions; bidding is automated | Manual or automated bids by product group |
| Visibility | Improved in 2025, still less granular | Full search terms and product group detail |
| Data needs | Reliable conversion values and enough conversions | Works with less data |
| Best for | Scaling stores with clean tracking and broad catalogues | New stores, testing, tight budgets, specific product groups |
| Main risk | Spend drifting to brand and remarketing | Missing reach on other channels |
Many stores run both: Performance Max for most of the catalogue, and Standard Shopping for products needing tight control or for structured tests.
How do you optimise the product feed?
Merchant Center’s product data specification lists the attributes Google uses to understand your products. Feed quality affects which searches you match, how often products are approved and how attractive listings look.
- Write titles for searchers. Put the words people search first: brand (if known), product type, key attribute (size, colour, material, quantity). “Vitamin C face serum 30 ml for dull skin” beats “Glow Elixir”.
- Use the right Google product category and your own product type hierarchy so campaigns can be grouped sensibly.
- Fill optional attributes such as colour, size, material, gender, age group and GTIN where they apply.
- Use clear, high-quality images with the product as the focus, following Google’s image requirements.
- Keep price and availability accurate between the site and the feed; mismatches cause disapprovals.
- Fix errors weekly in Merchant Center diagnostics; a disapproved best-seller costs more than any bidding tweak can recover.
- Add custom labels for margin band, best-seller status, season and stock level so you can structure campaigns by business value.
How should you structure campaigns by margin?
A single Performance Max campaign for the whole catalogue lets the system chase the easiest revenue, which is often low-margin best-sellers or brand searches. Grouping products by what they earn gives you control over where money goes.
| Campaign or asset group | Products | Target | Purpose |
|---|---|---|---|
| High margin | Custom label: margin high | Lower ROAS target allowed | Grow volume where each sale earns most |
| Core margin | Custom label: margin medium | Standard ROAS target | Steady profitable sales |
| Low margin or loss leaders | Custom label: margin low | Higher ROAS target or limited budget | Avoid buying unprofitable revenue |
| New launches | Custom label: new | Separate budget | Give products without history a chance to learn |
| Brand Search (separate) | Brand keywords | Efficiency | Protect brand terms and keep PMax reporting clean |
Do not split so far that each campaign has too few conversions to learn. A handful of well-defined groups usually beats dozens of tiny ones.
Why does ROAS mislead, and what should you bid on?
Return on ad spend divides revenue by ad cost. It ignores product cost, shipping, returns and discounts, so a campaign with a high ROAS can still lose money. The hypothetical example below shows why margin-aware targets matter.
Illustrative: same ROAS, very different profit
Better options, from simple to advanced:
- Set different ROAS targets per margin group (break-even ROAS = 1 ÷ gross margin).
- Pass conversion values based on gross profit rather than revenue, where your platform allows it.
- Use the new customer acquisition goal so first purchases from new buyers are valued above repeat purchases.
- Track returns and cancellations and adjust values or reports for them.
What are audience signals and asset groups?
Audience signals are hints, not hard targeting. They tell Performance Max where to start looking: customer lists, website visitors, people who searched related terms, and interest audiences. Asset groups hold the creative (images, videos, headlines, descriptions) and the listing groups for a set of products.
- Build asset groups around product themes with distinct buyers, such as “men’s running shoes” and “women’s running shoes”, rather than one group for everything.
- Give each asset group images and video that match its products; Google will auto-generate assets if you do not, often poorly.
- Use customer lists as signals and, with the new customer goal, as a way to value new buyers.
- Add search themes from real customer language, now up to 50 per asset group.
How do you check whether Performance Max is really working?
Performance Max reports can include sales from people who already knew your brand or had items in their basket. Check incrementality from several angles:
| Check | What to look for | Warning sign |
|---|---|---|
| New versus returning customers | Share of conversions from new customers | Most “sales” from existing customers |
| Brand search share | Spend on your own brand queries | Large share of search terms are brand terms |
| Channel report | Where conversions come from | Spend shifting to channels that rarely convert |
| Blended business metrics | Total orders, new customers and marketing efficiency ratio | Platform ROAS rising while total sales stay flat |
| Holdout or geo test | Sales change when spend is paused in some regions | Little difference between test and control |
Our performance marketing guide explains incrementality and blended metrics in more depth.
What does a sensible 90-day plan look like?
A hypothetical plan for a mid-size Indian D2C store moving from one catch-all campaign to a structured setup:
- Days 1 to 14: Audit Merchant Center errors, fix titles on the top 50 products, add margin custom labels, check purchase tracking and values against store orders.
- Days 15 to 30: Split brand search into its own campaign, apply brand exclusions to Performance Max, create margin-based campaigns, upload customer lists.
- Days 31 to 60: Turn on the new customer acquisition goal, review search terms weekly, add negative keyword lists, refresh assets per asset group.
- Days 61 to 90: Review the channel report, adjust ROAS targets by margin group, run a regional holdout to estimate incremental sales.
What should you do when Performance Max results drop?
Work through causes in order, from the most common to the least, before changing bids or rebuilding campaigns:
- Tracking: check that purchases and values still match store orders; a broken tag looks exactly like a performance drop.
- Feed: look for new disapprovals, price mismatches or best-sellers out of stock.
- Demand: compare with seasonality and search interest; some drops are market-wide.
- Competition: review auction insights and prices against competitors.
- Recent changes: a new target, budget cut or asset change can restart learning; give it time or roll back.
- Creative fatigue: refresh images and video in asset groups that have run unchanged for months.
What are the most common Performance Max and Shopping mistakes?
- Launching with a messy feed and expecting bidding to fix it.
- One campaign for every product regardless of margin.
- Letting Performance Max serve on brand searches and calling it growth.
- Using revenue values when margins differ widely across products.
- Uploading no creative and relying on auto-generated assets.
- Changing targets every few days, which keeps the campaign in learning.
- Ignoring returns, so reported ROAS overstates real profit.
How do you prepare tracking before launching Performance Max?
Automated bidding is only as good as the conversion data it learns from. Before scaling, confirm that what Google sees matches what your store records.
- Purchases match orders. Compare a week of Google Ads purchase conversions with store orders. Large gaps point to tag, consent or checkout problems.
- Values are correct. Pass the order value (or profit value) in the right currency, excluding tax and shipping if that is how you judge margin.
- One primary purchase action. Duplicate purchase actions from both the Google tag and an imported GA4 event can double-count sales.
- Enhanced conversions are on. Hashed customer data improves matching when cookies are missing.
- Consent is handled properly for your markets, so measurement respects user choices and stays compliant.
- Customer lists are uploaded and refreshed, so new customer goals can tell new from returning buyers.
What creative assets does Performance Max need?
Performance Max can serve on YouTube, Display, Discover and Gmail as well as Shopping, so asset quality affects how well it uses that reach.
| Asset | What to provide | Why it matters |
|---|---|---|
| Product images | Clean product shots plus lifestyle images in use | Shopping and Display placements depend on them |
| Video | At least one short video per asset group, vertical and horizontal if possible | Without one, Google may create a basic video from your images |
| Headlines and descriptions | Benefits, key attributes, offers and proof you can stand behind | Used across Search and other placements |
| Logos and business name | Correct, high-resolution versions | Builds recognition across channels |
| Final URL settings | Decide whether to allow URL expansion; exclude pages that should not receive traffic | Stops traffic going to blog posts, careers or policy pages |
How should an online store split budget between Google and Meta?
Google mainly captures people already looking for products like yours; Meta mainly creates interest among people who were not looking. Most stores need both, and the right split changes with the product.
- Products people search for by name or type (replacement parts, known categories) usually lean towards Google Shopping and Search.
- New or visual products people do not know to search for usually lean towards Meta and other social channels first.
- Judge the mix on blended results: total new customers, total revenue and total marketing cost, not each platform’s own report.
- Change one thing at a time and watch the whole business for a few weeks before deciding.
Bargaon’s eCommerce growth marketing service plans Google, Meta and retention together, so each channel’s role is clear and budgets follow profit.
Which related guides should you read next?
- Meta Ads covers the social channel most stores pair with Google.
- Google Ads for lead generation explains search structure and offline conversions.
- Performance marketing shows how to judge spend by incremental profit.
- Instagram marketing for D2C brands covers organic content that feeds ad creative.
- Marketing analytics and attribution explains reading platform reports carefully.
For organic visibility on the same products, see our eCommerce SEO service.
Frequently asked questions
Is Performance Max good for small stores?
It can be, once conversion tracking and the feed are reliable and there is enough volume to learn from. Very new stores with few sales often get more control and clearer learning from Standard Shopping first.
Can I see search terms in Performance Max?
Yes. Google made search terms reporting available for all Performance Max campaigns and through the API in 2025, so you can review queries and add negatives.
Should my brand terms be in Performance Max?
Usually not. Run brand search in its own campaign and apply brand exclusions to Performance Max, so its results reflect new demand rather than people already looking for you.
What is a good ROAS for eCommerce?
It depends on margin. Break-even ROAS is roughly 1 divided by your gross margin; a 50% margin breaks even at a ROAS of 2. Your target should sit above break-even after returns and other variable costs.
How many asset groups should I create?
One for each product theme with a distinct buyer and creative, while keeping enough conversions per campaign to learn. For many stores that means a few asset groups per campaign, not dozens.
Do I still need Standard Shopping campaigns?
Not always, but they remain useful for tight control, tests, new stores and specific product groups. Many stores run both side by side.
Sources and further reading
- Google Ads Help: More visibility and control in Performance Max (7 August 2025).
- Google: New Performance Max features for 2025 (23 January 2025).
- Google Ads Help: About Performance Max campaigns.
- Google Merchant Center: Product data specification.
- Google Ads Help: About Smart Bidding.
Want Shopping and Performance Max judged by profit, not just ROAS? Bargaon’s eCommerce growth marketing service fixes feeds, tracking and campaign structure so spend grows orders and margin.