Google Ads Expert for Ecommerce
Google Ads for ecommerce brands, built around profitable orders.
Merchant Center, product feeds, Shopping, Performance Max and Search, structured around your products, margins and the way your customers search. As a Google Shopping specialist, I also run Google Ads for Shopify stores.
What does a Google Ads consultant do for an ecommerce store?
A Google Ads consultant for ecommerce sets up and manages Merchant Center, the product feed, Shopping, Performance Max and Search so your products appear when people search for them. The account is structured by product line and margin, and judged by orders and conversion value checked against your store’s revenue.
Updated October 2026 · By Farrukh Moin Ahmed, digital marketing expert
Google Ads results for online stores
Four ecommerce accounts across bags, furniture, fashion and consumer robotics.
8.12
ROAS · Woda Bags, 395 orders
23.83
ROAS · SofaBay, £218K value
2.0 → 4.1
ROAS · Petoi, Oct–Dec
913
Conversions · Nicolette’s Couture
Google Ads-reported results from each account. Full context, periods and figures are on each case study.
Google Ads campaign types for online stores
Each campaign type has a job. Problems start when one type is asked to do everything.
| Campaign type | What it does | Best for | Watch out for |
|---|---|---|---|
| Standard Shopping | Shows product listings for searches that match your feed | Control and clear product-level reporting | Needs a strong feed and regular search term review |
| Performance Max | Runs across Search, Shopping, YouTube, Display, Gmail and Discover from one campaign | Scaling product lines that already convert | Hides which channels and searches drive sales unless given narrow jobs |
| Search | Text ads on specific product, category and attribute searches | High-intent queries and brand protection | Broad match without negatives pulls in irrelevant searches |
| YouTube & Demand Gen | Video and visual ads to people not yet searching | Products that need explaining or discovering | Judge on the sales they lead to, not last-click conversions |
| Remarketing | Brings back visitors who didn’t buy | Considered purchases and longer buying cycles | Frequency and overlap with Meta retargeting |
Sound familiar?
The Google Ads problems online stores bring to me most often, and what I do about each one.
The problem
“Performance Max spends the budget, but we can't see what it's buying.”
When one campaign runs the whole catalogue, the algorithm decides where money goes, and you lose visibility into products, placements and audiences.
How I fix it
Give PMax narrow jobs
Product-line or margin-based campaigns, Shopping-only asset groups and separate demand creation, so you can see and steer what drives sales. That approach took Petoi from a 2.0 to a 4.1 ROAS.
The problem
“Our Shopping ads don't show for the searches that matter.”
Shopping has no keywords. Product titles and attributes written for the website rarely match the words shoppers type.
How I fix it
Rewrite the feed for search
Titles that lead with product type and searched attributes, complete variant data and custom labels. The feed was the first thing built for Woda Bags, before any campaign.
The problem
“Google's numbers don't match our store.”
Missing, duplicated or wrongly valued conversions mean the algorithm optimizes toward the wrong thing, and nobody trusts the reports.
How I fix it
Fix tracking before spend
Purchase tracking checked against store orders, with full order values and no duplicates, before any optimization.
The problem
“ROAS looks great, but revenue isn't growing.”
Branded searches and returning customers inflate results, because many of those people would have bought anyway.
How I fix it
Separate brand from new demand
Brand and non-brand reported separately, new-customer settings where they fit, and Google judged against total store revenue.
The problem
“Best sellers take all the budget, and new products never get a chance.”
Algorithms favour what already sells, so new lines and higher-margin products are starved of spend.
How I fix it
Budget by product line and margin
Campaigns split with custom labels, so new collections get a fair test and spend follows profit, not just volume.
Google Ads by business type
How the approach changes for different kinds of online store.
Fashion & accessories
Feeds built on product type and attributes, campaigns split by collection and margin, and returns built into targets.
Google Ads for fashion brands →
Furniture & home
Detailed feeds, value-based bidding, delivery-area targeting and remarketing windows that match long decisions.
Google Ads for furniture stores →
Consumer tech & robotics
Demand creation and capture in separate campaigns, with Performance Max given product-specific jobs.
Google Ads for tech brands →
What a search-ready product feed looks like
In Shopping and Performance Max, the feed decides which searches you appear for. This is what I check first.
Titles lead with what people search
Google allows up to 150 characters in a product title, but shoppers usually see only the first 70 or so. Product type, brand and the key attribute go first.
Variants are told apart
Size, colour and material go in the title and in their own attributes, so the right variant shows for the right search.
Identifiers are complete
GTIN, brand and MPN where they exist, so Google can match your products to the searches and listings it already understands.
Custom labels carry business data
Margin bands, best sellers and seasonality as custom labels, so campaigns can be split by profit, not just category.
Images and landing pages match
The image, price and availability in the feed match the product page exactly, so items aren’t disapproved or bounced.
Shipping and returns are accurate
Correct shipping costs and return policies in Merchant Center, because they show to shoppers and affect eligibility.
How I build Google Ads for an online store
The sequence used for Woda Bags and SofaBay, both built from scratch, and for restructuring Petoi’s account.
01
Foundations first
Merchant Center, conversion tracking with real purchase values, and a clean account structure before any spend.
02
Optimize the feed
Product titles and descriptions written the way people search, with the attributes Shopping needs.
03
Structure by product
Shopping and product-specific Performance Max with clear jobs, so you can see what each line earns.
04
Capture high intent
Search campaigns for product, category and attribute queries, protected by negative keywords.
05
Create and recapture demand
YouTube, Demand Gen and remarketing to reach new buyers and bring visitors back.
From Performance Max-heavy to a full funnel.
Petoi’s account relied mostly on Performance Max, which left little visibility into what drove sales. I rebuilt it around the buyer journey: top-of-funnel Search, YouTube and Demand Gen to educate new buyers, product-specific PMax and Shopping-only asset groups in the middle, and remarketing to close.
Over October to December, ROAS went from 2.0 to 4.1, average CPC fell from $2.30 to $1.00, and purchases rose from 31 to 165.
ROAS
+105% higher is better
Average CPC
−57% lower is better
Purchases
+432% higher is better
Conversion value
+355% higher is better
Who this is for
An honest filter, so we both save time.
A good fit if
- You sell physical products online and want Google to be a profitable sales channel
- You have, or can set up, Merchant Center and conversion tracking
- You want visibility into which products and searches make money
- You’re launching Google Ads for the first time, or Performance Max is running everything
Probably not a fit if
- You need results without access to tracking or order data
- You want a single campaign left to automation with no reporting below it
- Your products can’t be shown in Shopping because of policy restrictions
- You’re looking for the cheapest possible management fee
What I report on
Numbers that connect ad spend to money in the bank, not just platform dashboards.
Conversion value by product line
Which products earn their spend, and which are carried by the rest of the catalogue.
ROAS against breakeven
Targets set from your gross margin, not from industry averages.
Brand vs non-brand
Branded searches reported separately, so they don’t make prospecting look better than it is.
New-customer purchases
Google’s customer acquisition settings can bid higher for new customers in Search, Shopping, Performance Max and Demand Gen.
Search terms and placements
What people actually searched before buying, reviewed every week.
Store revenue reconciliation
Google-reported orders compared with your store’s actual orders.
Pair Google with Meta.
Google captures people already searching for what you sell. Meta reaches people who aren’t searching yet. For Woda Bags I run both: Google Ads at an 8.12 ROAS, and since late April 2026 a Meta campaign at a 10.01 ROAS. Each platform’s results are reported separately, because both can claim the same order.
Google Ads
Shopping, Performance Max and Search capture existing demand.
Meta Ads
Facebook and Instagram creative builds new demand.
Tracking
GA4 and store data show what actually sold.
Ecommerce case studies
Each one opens as a full case study with the challenge, strategy and results.
Case study 02 · Ecommerce
Woda Bags
Launching Google Ads as a scalable growth channel
8.12
ROAS · 395 orders
Case study 03 · Ecommerce / Furniture
SofaBay
Building Google Ads from scratch and driving scalable growth
23.83
ROAS · £218K conversion value
Case study 01 · Robotics / Ecommerce
Petoi
Teaching the market, not just selling a robot
2.0 → 4.1
ROAS
Case study 04 · Fashion / Ecommerce
Nicolette’s Couture
Fashion ecommerce on Google Ads
913
Conversions · 3.42 ROAS
Questions about Google Ads for ecommerce
Should I use Shopping or Performance Max?
Both, with different jobs. Standard Shopping gives you control and clear product-level reporting. Performance Max works best with a narrow brief, such as one product line or a Shopping-only asset group, rather than running your whole catalogue.
Can you launch Google Ads for a store that has never run them?
Yes. Woda Bags and SofaBay were both built from scratch. The order matters: Merchant Center, tracking and the product feed come before any campaign.
How quickly will I see results?
Fixes to tracking and wasted spend show first. Bidding strategies need time and conversion data to learn, so judge new campaigns over weeks, not days.
What ROAS is good for ecommerce?
It depends on your margin. Your breakeven ROAS is 1 divided by your gross margin, so at a 40% margin you need a 2.5 ROAS to cover product costs. Targets should start from that number.
How long should my product titles be?
Use the space Google allows, up to 150 characters, but put the most important words first. Shoppers usually see only the first 70 or so characters, so product type, brand and key attributes lead.
Should I bid on my own brand name?
Usually yes, because competitors can bid on it and brand clicks are cheap. But brand campaigns are reported separately, so they don’t inflate the results of campaigns meant to find new customers.
Can Google Ads target only new customers?
Yes. Google’s customer acquisition settings can bid higher for new customers, or bid only for them, in Search, Performance Max, Shopping and Demand Gen campaigns, using your customer list to identify existing buyers.
What access do you need?
Google Ads, Merchant Center, GA4 and Google Tag Manager, plus your store’s order data. Read access is enough for an audit.
Google Ads guides for online stores
Long-form articles on Shopping, Performance Max and launching new accounts.
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Read articleGet a second opinion on your Google Ads
Tell me about your store, your current campaigns and what you’d like to change. I’ll reply with an honest view of where the opportunity is.
What happens next
- You tell me about your store and what isn’t working
- I look at what I can see: your ads, site and tracking
- I reply personally with an honest view of the opportunity
- If it’s a fit, we agree the scope of an account audit