Google Shopping can be one of the most effective forms of ecommerce advertising because it places the product, image, price, retailer and other commercial information directly in front of people searching for something to buy.
However, Shopping campaigns work differently from conventional Google Search campaigns. For comparison, see our guide to Google Search Ads and how keyword-based campaigns differ from product-based advertising.
The most important distinction is that Google Shopping does not use positive keywords to determine which products enter an auction. Instead, Google analyses the information in the Merchant Center product feed, the product landing page and other contextual signals to match products with relevant searches.
Your product feed effectively performs the role normally played by keywords and advert copy. That is why feed quality must be addressed before bidding strategies, audience signals or campaign settings.
The following Google Shopping tips are ordered broadly by their potential commercial importance, with a separate pre-launch checklist covering the technical and policy requirements needed before products are published.
1. Treat the Product Feed as Your Primary Targeting System
In a Search campaign, an advertiser selects keywords and writes adverts to match them. In Google Shopping, the advertiser provides structured product information and Google decides which searches are relevant.
This makes the product feed the targeting foundation of the campaign.
Google uses information such as the following to understand each product:
Product title
Description
Brand
GTIN
Manufacturer part number
Product type
Google Product Category
Colour
Size
Material
Pattern
Gender
Age group
Price
Availability
Landing-page content
A basic feed may make a product technically eligible. A comprehensive and well-optimised feed gives Google substantially more information with which to match the product to suitable searches.
Google confirms that it uses submitted product data to match products with relevant queries. Missing, inaccurate or incorrectly formatted information can cause disapprovals, limited eligibility and incorrect product presentation. Google Merchant Center product-data specification
Build the Most Comprehensive Feed Possible
Do not provide only the minimum mandatory fields. Submit every relevant attribute that can help Google identify and classify the product accurately.
A furniture retailer, for example, might provide:
Product type
Furniture style
Material
Colour
Dimensions
Number of seats
Indoor or outdoor use
Brand
Collection
Condition
Availability
Delivery information
An apparel retailer might add:
Size
Size system
Size type
Colour
Gender
Age group
Material
Pattern
Item group ID
Comprehensive data does not guarantee strong performance, but incomplete data limits the information available to Google’s matching and bidding systems.
2. Prioritise Product Titles Above Other Feed Optimisations
The product title is normally the most influential feed attribute for targeting. It is also one of the most prominent components of the Shopping advert, which means it can affect click-through rate as well as search relevance.
A vague title such as:
Men’s Shoes – Model 4873
provides Google and the customer with relatively little useful information.
A stronger title might be:
Nike Air Max 90 Men’s Trainers – Black – UK Size 9
The second title communicates the brand, model, product type, audience, colour and size. It is much closer to the language customers are likely to use when searching.
Put the Most Important Information First
Google accepts product titles of up to 150 characters, but the complete title will not necessarily appear in every advert format. The most commercially important information should therefore appear near the beginning.
A useful general structure is:
Product Type + Important Attribute + Colour + Size
However, if you sell a well-known brand, then this headline is more suitable
Brand +Product Type + Important Attribute + Colour + Size
The ideal structure depends on the sector. Brand may be extremely important for electronics, clothing and recognised consumer products. It may be less important for unbranded furniture, building materials or generic home products.
The title should reflect how real customers search—not simply the order in which information appears in the ecommerce database.
Distinguish Product Variants
If several feed entries have effectively identical titles, Google and the customer may struggle to differentiate them.
Include the relevant variant information, such as:
Colour
Size
Capacity
Material
Pack quantity
Model
Compatibility
Dimensions
The product title should accurately describe the specific item shown on the linked landing page. Google’s product-title guidance
Avoid Keyword Stuffing
Including search terms does not mean repeating the same phrase several times.
Avoid titles such as:
Cheap Men’s Trainers Running Trainers Best Trainers Men’s Shoes Sale
This is difficult to read, looks unprofessional and introduces terms that may not accurately describe the product.
Titles should remain:
Accurate
Specific
Natural
Grammatically understandable
Consistent with the landing page
Free from unsupported promotional claims
3. Use Descriptions to Expand Google’s Understanding
Product descriptions are less prominent than titles, but they provide additional targeting context.
A strong description can cover:
Product type
Features
Materials
Dimensions
Intended use
Compatibility
Technical specifications
Included items
Appropriate customer or environment
Important limitations
Write naturally and include relevant search language without repeating keywords mechanically.
Avoid filling descriptions with promotional information such as:
Free delivery
Limited-time offer
Cheapest online
Best price
Buy now
Huge discount
Pricing, delivery and promotional information have dedicated Merchant Center attributes and features.
Manufacturer descriptions can provide a useful starting point, but a retailer can often improve performance by creating clearer, more detailed and better-structured product information. Original descriptions can also help the landing page differentiate itself from competing retailers selling the same product.
4. Submit Accurate Product Identifiers
Product identifiers help Google understand exactly what is being sold.
These commonly include:
Brand
GTIN
Manufacturer part number
SKU or product ID
Submit GTINs When the Manufacturer Has Assigned Them
A GTIN allows Google to identify a particular commercial product and compare it with equivalent products sold by other retailers.
Do not:
Invent GTINs
Use an internal SKU as a GTIN
Reuse one GTIN across unrelated products
Submit a parent-product GTIN for every variant
Remove genuine GTINs to avoid price comparisons
If the manufacturer assigned a barcode, submit the corresponding valid GTIN.
Use Stable Product IDs
A retailer’s SKU can be an appropriate Merchant Center id when it is unique and stable.
Do not repeatedly change or recycle product IDs. Changing the ID can cause Google to treat an established product as a new item, potentially separating it from its previous campaign history.
Use identifier_exists Carefully
Set identifier_exists to no only when the product genuinely does not have the normally expected identifiers.
It should not be used as a workaround for missing data.
5. Create a Useful Product Classification System
Google Product Category and Product Type serve different purposes.
Google Product Category
Google uses its own standard taxonomy to categorise products. Google may assign the category automatically, while the google_product_category attribute can be used in applicable situations to correct or override categorisation.
Use the most accurate and specific appropriate category. Incorrect categorisation can affect eligibility, required attributes and campaign organisation. Google Product Category guidance
Product Type
Product Type is the retailer’s own classification system.
A detailed Product Type might be:
Home & Garden > Garden Furniture > Rattan Furniture > Corner Sofa Sets
This attribute can help organise reporting and product groups around the way the retailer actually manages its catalogue.
A useful hierarchy is generally better than a broad value such as:
Furniture
6. Keep Prices and Availability Continuously Accurate
A strong feed loses its value if the product information does not match the website.
The following information should remain consistent across the feed, landing page, structured data, basket and checkout:
Product
Selected variant
Price
Sale price
Currency
Availability
Condition
Price and availability mismatches are common causes of product disapprovals.
Update Important Information Frequently
A small retailer with stable stock may be able to update its feed daily. A larger or faster-moving retailer may require updates several times per day or through the Merchant API.
Automatic item updates can help Google make temporary corrections using website structured data, but they should not be used as a substitute for a dependable primary data source.
Use Genuine Sale Prices
Do not show products as permanently discounted when the alleged original price is not genuine.
Submit:
pricefor the ordinary pricesale_pricefor the temporary sale pricesale_price_effective_datefor the applicable period
Google decides whether an advert qualifies to display a sale-price annotation or crossed-out reference price.
Perpetual and misleading sales can create both advertising-policy and consumer-law concerns.
7. Use Images to Improve Click-Through Rate
The product image is often the first element a prospective customer notices.
Use a sharp, high-resolution main image that accurately represents the product being advertised. Avoid:
Promotional text
Watermarks
Artificial borders
Retailer logos
Placeholder images
Misleading accessories
Excessive empty space
Images that do not match the selected variant
A white or neutral background is often effective for the main image, but it is not universally mandatory. Likewise, people are not prohibited in every product image; models may be appropriate for apparel and lifestyle products.
Prepare for the New Minimum Image Size
Until 31 January 2027, the older technical minimums remain:
250 × 250 pixels for apparel
100 × 100 pixels for most other products
Google has announced that product images must be at least 500 × 500 pixels from 31 January 2027. It currently recommends images of 1500 × 1500 pixels or above for stronger coverage across formats. Google’s image requirements
Retailers creating new imagery should therefore prepare for the 500 × 500 minimum rather than continuing to produce images at the older dimensions.
Submit Additional Images
Use additional_image_link to provide:
Alternative angles
Product details
Packaging
Scale
Included accessories
Product-in-use photographs
Lifestyle photographs
These images can help customers evaluate the product before visiting the website and reduce uncertainty after the click.
8. Optimise Product Landing Pages
The feed may generate the impression, but the landing page must convert the visitor.
Every feed link should lead directly to the relevant purchasable product—not to a homepage, generic category, search-results page or unrelated product.
The page should make the following immediately clear:
Product title
Main image
Price
Currency
Availability
Description
Variant
Add-to-basket button
Making the essential purchase information visible without excessive scrolling is good conversion practice. However, “every element must be above the fold” should not be described as a universal Merchant Center rule.
Preselect the Correct Variant
If the feed advertises a blue size-nine shoe, the customer should arrive at a page where that variant is already selected or its price and availability are unmistakably clear.
The following should agree:
Feed attributes
Selected variant
Product image
Visible price
Availability
Structured data
Add-to-basket selection
Improve the Complete Product Offer
A successful page normally also includes:
Delivery costs and estimates
Returns information
Product specifications
Reviews
Trust signals
Payment options
Guarantees
Clear variant controls
Mobile-friendly navigation
Shopping performance cannot be separated from the competitiveness and usability of the website.
9. Implement Accurate Purchase and Revenue Tracking
Shopping campaigns should not be launched until purchase tracking has been tested. Accurate measurement is covered further in our guide to Google Ads conversion tracking.
The conversion should pass:
Purchase event
Transaction value
Currency
Unique transaction ID
The transaction ID helps prevent the same order from being counted repeatedly when a customer reloads the confirmation page.
Where suitable, also implement:
Enhanced conversions
Consent Mode
Cart-data reporting
New-customer reporting
Server-side measurement
Optimise Towards Conversion Value
Ecommerce orders rarely have identical values. A £20 purchase and a £1,000 purchase should not provide the bidding system with the same signal.
For this reason, conversion-value bidding is usually more commercially meaningful than treating every purchase as an equal conversion.
ROAS is calculated as: ROAS = Conversion Value / Advertising Cost
A campaign producing £10,000 from £2,000 of advertising has a ROAS of 500%. However, revenue ROAS is not the same as profit.
10. Account for Margin, Returns and Customer Value
Two products generating the same revenue may produce very different financial results.
Where possible, incorporate:
Cost of goods
Gross margin
Delivery costs
Payment-processing fees
Discounts
Return rates
Refunds
Repeat orders
Customer lifetime value
A 500% ROAS on low-margin, high-return products may be less profitable than a 350% ROAS on high-margin products with repeat-purchase potential.
This commercial data can also inform custom labels and campaign segmentation.
11. Use Custom Labels to Organise Products Commercially
Custom labels allow retailers to add internal information that Google would not otherwise understand.
Useful labels include:
high_marginlow_marginbestsellernew_productclearancewinterlow_stockhigh_return_rateprice_100_250strategic_brand
These labels can then support reporting, product groups, campaign structures and controlled testing.
Google’s standard categories describe what the product is. Custom labels describe what the product means commercially to the retailer.
12. Segment Campaigns According to Product Economics
A large catalogue should not necessarily be managed as one undifferentiated group.
Products can be separated according to:
Brand
Category
Product type
Margin
Price
Season
Stock level
Historical performance
Return rate
Strategic importance
Separating top-performing or high-margin products can give them greater budget and bidding control.
However, avoid dividing the account into so many campaigns that each segment lacks sufficient conversion data. Campaign segmentation should solve a genuine budget, bidding, reporting or business-priority problem.
13. Give New Products an Opportunity to Collect Data
Automated bidding may favour products with an established record of impressions, clicks and sales. New products can consequently receive little exposure when placed in the same campaign as proven bestsellers.
Consider using:
A new-product custom label
A controlled testing campaign
A dedicated budget
Temporary less-restrictive bidding
A structured product-title test
Do not leave new products isolated indefinitely. Move them into the appropriate long-term structure once sufficient evidence is available.
14. Exclude Products That Are Unsuitable for Advertising
Not every product should necessarily receive paid traffic.
Products may be poor advertising candidates when they have:
Very low margins
High return rates
Limited stock
Weak product pages
Uncompetitive prices
Expensive delivery
Repeated disapprovals
Historically poor conversion rates
Advertising an entire catalogue without considering individual product economics can allow unprofitable products to consume budget that could be directed towards stronger opportunities.
15. Choose Between Standard Shopping and Performance Max Deliberately
Standard Shopping and Performance Max both use Merchant Center product data, but they provide different levels of control and reach.
Standard Shopping is useful where the advertiser wants:
Shopping-specific traffic
Direct product-group controls
Greater visibility over Shopping activity
Manual or more controlled testing
A benchmark against Performance Max
Performance Max can serve across our wider Google Ads campaign types including:
Shopping
Search
YouTube
Display
Discover
Gmail
Maps
Performance Max should therefore not be treated as merely a new version of Standard Shopping. It is a cross-channel campaign that uses product data, creative assets, automated bidding and audience signals.
16. Choose a Bidding Strategy That Reflects the Available Data
Maximise Conversion Value and Target ROAS can be effective when the account has accurate purchase values and sufficient conversion data.
However, an aggressive Target ROAS can restrict traffic. If Google does not believe it can achieve the target, it may simply avoid entering auctions or bid less frequently.
Set initial targets using:
Historical performance
Gross margins
Required profitability
Conversion volume
Competitive conditions
Growth objectives
Do not select an aspirational ROAS target merely because it represents the retailer’s ideal result.
Allow Automated Bidding Time to Learn
Avoid making structural or bidding changes every few days.
Google recommends allowing retail Performance Max campaigns to run for at least six weeks when evaluating normal performance. Google’s Performance Max retail guidance
This does not mean ignoring:
Broken tracking
Product disapprovals
Irrelevant traffic
Excessive spending
Incorrect prices
Unavailable products
Learning periods apply to evaluating normal campaign performance—not to leaving obvious faults unresolved.
17. Review Search Terms and Apply Negatives
Although Shopping does not use positive keywords in the conventional sense, search-term analysis remains important.
Review the searches and categories associated with product traffic to identify. This follows the same principles discussed in our Google Ads negative keywords guide:
Irrelevant searches
Unexpected product matching
Poorly written titles
Valuable product themes
Branded demand
Generic demand
Searches better targeted through Search campaigns
Negative keywords can remove irrelevant or commercially unsuitable traffic.
Performance Max now supports campaign-level negative keywords for Search and Shopping inventory, so negative-keyword management is no longer limited to Standard Shopping.
Avoid adding negatives so aggressively that useful long-tail demand is unintentionally blocked.
18. Separate Branded and Non-Branded Performance
Brand searches often produce a stronger conversion rate because customers already know the retailer or manufacturer.
If branded and generic demand are evaluated together, the campaign may appear to be acquiring new customers more efficiently than it really is.
Analyse:
Retailer-brand searches
Manufacturer-brand searches
Generic product searches
Competitor-related searches
Existing-customer sales
New-customer sales
Performance should be judged according to the type of demand being captured.
19. Use Audience and First-Party Data
Relevant first-party audiences can help Google understand valuable customer groups.
Useful data includes:
Previous purchasers
High-value customers
Repeat customers
Basket abandoners
Product viewers
Category visitors
Customer Match lists
In Performance Max, audience signals guide the system but do not normally restrict the campaign to only those users.
Ensure that all customer information has been collected and processed with the necessary consent, security and lawful basis.
20. Improve the Commercial Offer
Feed optimisation can improve eligibility and targeting, but it cannot make an uncompetitive offer compelling.
Compare your offer against other Shopping results for:
Product price
Delivery cost
Delivery speed
Returns policy
Reviews
Guarantees
Payment options
Product availability
Retailer reputation
If the retailer cannot compete on price, it may be able to compete through:
Faster delivery
Free returns
Exclusive bundles
Better guarantees
Finance options
Stronger reviews
Specialist advice
Superior customer service
21. Use Merchant Promotions
Merchant Promotions can help products stand out with offers such as:
Percentage discounts
Fixed monetary discounts
Promotional codes
Free gifts
Multi-buy offers
Free delivery
Use the formal Promotions feature rather than inserting promotional claims into product titles, descriptions or images.
The offer must be genuine, available as described and consistent with the website.
22. Build Products Into a Wider Customer-Lifetime-Value Strategy
The first advertised purchase may be only the beginning of the commercial relationship.
Consider products that can act as entry or “tripwire” offers—lower-cost purchases that introduce the customer to the retailer and create opportunities for:
Accessories
Consumables
Replenishment
Subscriptions
Upgrades
Cross-selling
Repeat orders
Coordinate Shopping campaigns with:
Email newsletters
Basket-abandonment campaigns
Browse-abandonment campaigns
Replenishment reminders
Post-purchase education
Review requests
Customer reactivation
Paid remarketing
A product with a modest first-order ROAS may be commercially valuable if it regularly produces high-value repeat customers.
23. Maintain Merchant Center and Google Ads Every Week
Google Shopping is not a one-time implementation.
A weekly review should cover:
Merchant Center diagnostics
Disapproved products
Limited products
Price mismatches
Availability mismatches
Image issues
Search terms
Product-level spending
Conversion values
ROAS
Profitability
Stock availability
Delivery settings
Budget restrictions
Feed changes
Analyse individual product IDs rather than relying only on campaign averages. One bestseller can make a large group appear profitable while weaker products continue to waste budget.
Google Shopping Pre-Launch Checklist
Feed optimisation and campaign strategy are the largest performance priorities, but the account cannot operate reliably without the correct technical and policy foundation.
Use the following checklist before publishing products or activating Google Ads.
Product Feed Checklist
Before submission, confirm that:
Every product has a unique and stable ID
Product titles contain important search information
Important title information appears near the beginning
Descriptions are detailed, accurate and relevant
Product links lead directly to the correct landing pages
Main image URLs are accessible to Google
Images contain no promotional overlays or watermarks
Images meet current and forthcoming size requirements
Price and currency match the landing page
UK consumer prices include VAT where applicable
Availability matches the website
Condition is accurate
Correct brand information has been supplied
Genuine GTINs have been supplied where assigned
MPNs have been provided where applicable
Product Type hierarchies are useful and consistent
Google Product Categories are accurate where supplied
Product variants use appropriate item-group IDs
Apparel attributes are complete
Shipping information is accurate
Sale prices and effective dates are correct
Bulk products show the minimum purchasable quantity and price
The data source updates frequently enough for the catalogue
Website Trust Checklist
Google expects retailers to present clear contact information, policies and purchase conditions. Google’s Merchant Center website guidelines
Before review, confirm that:
The business name is clearly displayed
Contact information is easy to find
At least one genuine contact method is provided
Business information is consistent with Merchant Center
A detailed returns and refunds policy is published
A delivery policy explains costs and times
Terms and conditions are published
A privacy policy is published
Payment arrangements are explained
Important policy links appear in the footer
Business claims are accurate and supportable
The website contains no dummy or unfinished content
Social links lead to genuine profiles where displayed
The shop can complete real transactions
A separate disclaimer page, social-media profile, business-hours page or physical address visible on Google Maps may improve trust in particular circumstances, but these should not be presented as universal Merchant Center requirements.
Product Landing-Page Checklist
For every advertised product, confirm that:
The URL leads directly to the relevant product
The page shows the correct title
The correct variant is selected
The primary image represents the advertised variant
The price is prominent
The currency is clear
The payable consumer price is not overshadowed by a lower figure
The availability is accurate
The product can be added to the basket
Delivery information is accessible
Returns information is accessible
Structured data matches the visible page
Mandatory information is not blocked by pop-ups
The page works on desktop and mobile
The page remains accessible to Google’s crawler
IP detection does not change the advertised price
Country redirection does not make the submitted URL inaccessible
Language and currency are suitable for the target market
Checkout Checklist
Before launch, place test orders and confirm that:
Checkout uses HTTPS with a valid SSL certificate
Customers can complete the order successfully
At least one conventional payment method is available
Payment methods are explained before the final order
Product prices remain consistent
Delivery charges remain consistent
Discounts calculate correctly
VAT and taxes are handled correctly
No undisclosed mandatory fees appear
The final total is visible before purchase
Returns, delivery, privacy and terms remain accessible
Guest checkout works where offered
Mobile checkout works correctly
Order-confirmation pages function correctly
Failed payments are handled properly
Google’s requirement is that at least one conventional payment method is available. It does not universally require every retailer to offer both credit and debit cards. Likewise, a terms-acceptance checkbox is not universally prohibited, although unnecessary or misleading barriers should be avoided. Google’s checkout requirements
Shipping Checklist
Confirm that:
Delivery costs in Merchant Center match the website
Costs are overestimated rather than underestimated where an exact match is impossible
Delivery times are realistic
Regional restrictions are configured correctly
Minimum order values are declared
Oversized or heavy products use suitable delivery labels
Product-level shipping attributes do not incorrectly override account settings
Handling and other mandatory merchant charges are accounted for
International customs and import arrangements are explained
Free-delivery thresholds match the website
Tracking and Google Ads Checklist
Before activating the campaign, confirm that:
Merchant Center is linked to the correct Google Ads account
The purchase conversion fires successfully
Revenue values are accurate
The correct currency is passed
Unique transaction IDs prevent duplicates
Enhanced conversions are configured where appropriate
Consent settings work correctly
Test orders do not produce duplicate purchases
The correct products are included
Unsuitable products are excluded
Campaign budgets are commercially realistic
The bidding strategy matches the available data
ROAS targets are based on evidence
Brand and generic demand can be evaluated
Search-term monitoring is scheduled
Merchant Center diagnostics will be reviewed regularly
Final Thoughts
The most important Google Shopping lesson is that performance begins with product data—not with the campaign settings.
Google Shopping does not ordinarily rely on advertiser-selected positive keywords. The product feed determines much of the targeting, the title influences relevance and click-through rate, the image attracts attention, and the price and commercial offer determine whether the customer seriously considers purchasing.
The campaign and bidding strategy then decide how aggressively Google competes for those opportunities. Understanding automation is also important, which is why we cover Google Ads automated bidding strategies in more detail.
The strongest Shopping programmes therefore combine five disciplines:
Comprehensive and accurately optimised product data
Competitive products and high-converting landing pages
Reliable purchase-value and profitability measurement
Commercially intelligent campaign segmentation and bidding
Continuous Merchant Center and product-level maintenance
Automated bidding can distribute budget, but it cannot repair missing product data, an uncompetitive price, a confusing landing page or inaccurate revenue tracking. Build the feed and commercial foundation first; automation then has better information on which to make decisions.
To learn more, explore our Google Ads Guide to Google Shopping for improving feed quality, campaign structure and advertising performance.