Google Shopping Agency For eCommerce

Scale your revenue by capturing high-intent shoppers with optimized Google Shopping feeds and campaign strategy.

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AFTERMARKET IS EVOLVING

Challenges Ecommerce Brands Face With Google Shopping & PMax

Rising CPCs → Eating into margins

As competition heats up and more players flood the Google Shopping ecosystem, cost-per-click continues to climb. For established ecommerce brands with tight margins, even a 10–15% increase in CPC can erase profit — fast. Scaling becomes a balancing act between growth and profitability, especially when ad spend isn’t tightly managed or optimized by SKU, margin band, or funnel stage.

Over-indexing on existing customers

Many brands rely heavily on repeat buyers, often without realizing it. But with typical repeat rates hovering between 15–30%, that means the majority of your revenue potential is still untapped. If your Google Shopping campaigns aren’t structured to actively acquire new customers with tailored messaging and bidding strategies, you’re leaving serious growth on the table.

Black box automation → No insight, no control

Google’s automation is powerful, but it often hides the very levers you need to pull to maintain performance at scale. Which asset group is driving conversions? Are branded queries inflating results? Without clear insights, your team is flying blind — especially at the enterprise level where performance clarity matters.

No integration across marketing channels → Hard to keep a cohesive strategy

When your Shopping, Search, Meta Ads, CRO, and Amazon strategies live in silos, it’s nearly impossible to build momentum. A customer sees one message in a Google Shopping ad, another on your landing page, and a completely different story on Instagram. We help align your entire ecommerce performance engine. Every touchpoint reinforces your brand, your value, and your next conversion.

Diminishing returns when scaling

It’s one thing to hit $50k/month in Shopping revenue. It’s another to scale beyond that without seeing ROAS drop off a cliff. Larger brands need structured, segmented Google Shopping campaigns that can adapt across product lines, seasonal demand, and multiple geographies. All while keeping acquisition cost in check. Without that level of sophistication, growth flattens.

Volatile PMax performance → Great one week, flat the next

One week you’re crushing ROAS. The next, your top products disappear from the feed and your conversions tank. Sound familiar? Performance Max campaigns can be wildly inconsistent, especially when you have no visibility into what’s working or how to optimize. This volatility makes forecasting (and trusting the channel) difficult.

Lack of competitive edge → Everyone’s using PMax now.

Few are using it well. Most brands run default campaigns, rely on auto-generated assets, and treat PMax like a “set-it-and-forget-it” solution. In competitive niches, that’s not enough. Brands that win are the ones who inject real strategy into their asset groups, audience signals, feed structure, and measurement approach.

what makes scube
different

Where Google Shopping & PMAX Fit in Your Marketing Plan

Google Shopping and Performance Max live in the consideration and decision stages of your funnel. They don’t generate demand like Meta or YouTube prospecting ads — they harvest it.
When a shopper searches for a product, Google Shopping ads place your products front and center — image, title, price, and store name — letting them compare and click instantly. Unlike SEO, results are immediate. Unlike marketplaces, you own the customer relationship.
These channels are powerful — but only when integrated with your full ecommerce strategy.

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Why Google Shopping Works

When someone searches “ceramic brake pads for Honda Civic,” Google doesn’t show a blog post. It shows product listings — image, price, title, ratings, and store.
That's matter because:

  • You prequalify the shopper before they click (better conversion rates)
  • You pay less per click than generic text ads
  • You only compete with other ecommerce stores (not service businesses)
  • You build your own customer list (unlike Amazon or eBay)

And since few brands know how to properly structure Shopping or PMax, the competition is beatable — if your feed and campaigns are dialed in.

Have the feeling your feed and/or Google Shopping campaigns aren’t dialed in?

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FOUR PILLARS

What Makes Our Program Work

We don’t just run Google Shopping and PMax ads. We build systems. Our framework is built on four pillars:

Pillar 1: Product Feed Optimization

Your feed is your foundation. We:

  • Fix messy SKUs and broken data
  • Enrich product attributes with high-converting metadata
  • Segment by price, margin, inventory, and intent
  • Sync Merchant Center with real-world merchandising priorities

Better data = better bidding = better ROI.

Pillar 2: Campaign Architecture

We design campaigns that respect business logic.

  • Branded vs. non-branded segmentation
  • Search vs. Shopping vs. PMax orchestration
  • Negative keyword control to cut waste
  • Asset group segmentation in PMax for control and insight
  • Budgeting aligned to profit goals

Every campaign has a role. Every dollar has a job.

Pillar 3: Video & Nurture Ads

Awareness fuels performance. We deploy upper- and mid-funnel campaigns that build trust and drive returns.

  • YouTube & Meta Video for storytelling and brand recall
  • Dynamic product ads for retargeting
  • Testimonials & product comparisons to overcome doubt
  • Lifestyle messaging to convert “maybe” into “yes”

We don’t just retarget. We nurture — turning visitors into loyal customers.

Pillar 4: Analytics & Forecasting

Data should drive action — not just sit in a BI tool.
We build clear dashboards and analytics stacks to:

  • Track new vs. returning customer CAC
  • Measure MER across channels
  • Attribute sales to campaigns and products
  • Forecast performance based on budget, margin, and cash

Designed for leadership — not just marketers.

  • Feed your catalog into a structured product feed
  • Sync the feed with Google Merchant Center
  • Run ads through Google Ads via Shopping or PMax campaigns
  • Appear across Google Search, Shopping tab, YouTube, Gmail, Discovery, and more

How Google Shopping & PMax Work

Google heavily promotes these placements — often at the top or side of the search page — giving you premium shelf space.

OUR SERVICES

What You Get

We don’t sell "just ads." We deliver integrated performance programs combining:

  • Paid Media
  • Product Feed Management
  • Analytics

Strategic Planning

  • Profit-based goal setting & KPIs
  • Forecasting by season, margin, and cash flow
  • Paid media content strategy (angles, messaging, audiences)

Paid Ads (Search, Shopping, and PMax)

  • Tactical audits and campaign planning
  • Keyword research, ad creation, and copywriting
  • Campaign setup, monitoring, optimization
  • Product performance segmentation

Feed & Merchant Center Management

  • Ongoing product feed optimization
  • Error resolution and compliance
  • Price and stock monitoring
  • Syncing with merchandising updates

Analytics & Reporting

  • Real-time executive dashboards
  • Funnel analytics & product attribution
  • First-party tracking integrations
  • Insights and recommendations that explain the why, not just the what

Support Services

To improve messaging, tracking, and conversion:

  • Performance creative (video, lifestyle, testimonials)
  • Conversion tracking & Google Tag Manager setup
  • SEO & conversion rate optimization

Expert Help Beyond Google Shopping & PMax

We’re not just specialists in Google Shopping Management, we understand that brands like yours often require a full suite of services to address growth challenges.

Drive new customers searching for solutions through strategic targeting.

We do 95% of the work including strategy, optimization and reporting.

  • Keyword targeting
  • Budget optimization
  • Ad testing
  • Bid management
Capture high-intent shoppers with optimized product campaigns.

We do 95% of the work including strategy, optimization and reporting.

  • Feed optimization
  • Budget optimization
  • Product analysis
  • Bid management
Capture new customers on-demand on the largest social media platforms.

We do 95% of the work including strategy, optimization and reporting.

  • Audience targeting
  • Shopping Feeds
  • Ad testing
  • Optimization
Prospect and retarget customers through segmentation and testing.

We do 95% of the work including strategy, optimization and reporting.

  • Audience targeting
  • Shopping Feeds
  • Ad testing
  • Optimization
Capture early buyers on the largest product discovery platform.

We do 95% of the work including strategy, optimization and reporting.

  • Audience targeting
  • Shopping Feeds
  • Ad testing
  • Optimization

What We Don’t Do

We’re not for everyone — and that’s a good thing. Here’s what we don’t believe in when it comes to Google Shopping and Performance Max.

01

One-Size-Fits-All Campaigns

We don’t copy-paste templates from one brand to another. Every account is structured around your product mix, margin strategy, customer acquisition goals, and existing data.

02

Blind Automation

We don’t set up PMAX and hope for the best. While automation is powerful, we build in layers of strategic control — from asset group structure to audience signals and feed optimization — so you’re not at the mercy of the algorithm.

03

Branded Traffic Inflation

We don’t take credit for easy branded conversions and call it a win. We work to protect your branded terms, prioritize true incremental growth, and make sure your budget is acquiring new customers — not just retargeting existing ones.

04

Ignoring the Feed

Your product feed is the foundation of Shopping performance — and we treat it that way. We don’t let messy titles, missing attributes, or irrelevant categories cost you money.

05

Flimsy Reporting

We don’t hide behind vague dashboards or surface metrics. Our reporting is built for growth-minded operators — clear, actionable, and tied to real business outcomes like new customer ROAS and margin protection.

06

Silence When Things Go Sideways

We don’t disappear when performance fluctuates. In fact, we lean in — identifying root causes, adjusting strategy, and communicating clearly with your team every step of the way.

We believe in niching down and specializing in a few core services that our team can use to confidently scale your ecommerce business. Although we understand the need for a healthy marketing mix, we currently don’t offer the following services: 

  • Email marketing
  • TikTok Ads
  • Web design
  • Social media management
  • PR & influencer marketing
  • Local marketing
  • Creative and branding services
tools we use

Certifications & Tech Stack

We leverage industry-leading platforms and technologies to maximize your campaign performance, especially for large product catalogs with fitment data.

We're certified in:

Tech we work with:

Are we a fit?

Who SCUBE Can Help Best

At SCUBE, we specialize in helping ecommerce brands that sell functional, necessary products — the kind of gear, tools, and components people rely on to get the job done. These aren't flashy lifestyle goods or emotionally-driven purchases. They’re performance-driven essentials built for real-world use.
We call this category Spec-Driven Commerce: ecommerce brands that operate in function-first industries where specs, durability, and reliability matter more than aesthetics or storytelling. You don’t sell dreams. You sell decibels, torque, and tensile strength. We turn that into profit.
Think brake pads, welding masks, construction gloves, car batteries, turbochargers, or heavy-duty overalls. These are mission-critical products, often serving niche or industrial audiences who value practicality over presentation.

Our ideal clients focus on:

  • Email marketing
  • TikTok Ads
  • Web design
  • Social media management
  • PR & influencer marketing
  • Local marketing
  • Creative and branding services

If your brand is built on function, not flair — selling boring-but-essential products that solve real problems — we’re built for you.

Perfect Fit
Might Be a Fit
Not-So-Great Fit
Products & Marketing
Products & Marketing
Products & Marketing
Essential products solving practical problems
Niche, passionate audiences
Emotion- or identity-driven purchases
Feature- and performance-focused messaging
Some lifestyle elements, but grounded in utility
Trend-sensitive products
Buyers motivated by use case, not emotion
Opportunity to improve performance strategy
Heavy reliance on visual branding and storytelling
Example Markets
Example Markets Example Markets
Auto Parts & Accessories
Outdoor Lifestyle
Fashion & Apparel
Safety Gear & Industrial Equipment
Sporting Goods
Beauty & Personal Care
Home Improvement & DIY Supplies
Luxury DTC Home Goods
Packaging & Fulfillment Materials
Pet & Wellness Products
Functional Hobbyist Niches (e.g., tactical, motorsports)
our process

Industries We Specialize In

While we welcome any $7-8 figure ecommerce company, we specialize in a core set of industries. Our team understands the unique needs and challenges certain markets face when it comes to Google Shopping management. 

01

Proud members of SEMA and partners to dozens of aftermarket auto parts stores

Review and translate goals into clear KPIs so they can be measured and achieved.

02

Challenges You May Face:

  • Fitment Data and Large Catalogs
  • Profitability in a Crowded Market
  • Scalability
  • Brand Consistency
  • Product and Company Awareness
  • Local marketing
  • Creative and branding services
03

TACTICAL PLANNING

Develop and prioritize tactics to achieve target KPIs  as quickly and efficiency as possible.

01

ONGOING OPTIMIZATION

Optimize campaign targeting, ads, products, bids, and other settings to maximize budget and achieve the KPI targets.

02

PIVOTAL TESTING

Test audiences, offers and ad angles to find out best performing areas and maximize performance.

03

GROWTH PROJECTS

Work on other areas such as new offers, reviews, or creative assets that would dramatically increase performance.

01

INSIGHTS

Report insightful results without overloading you with spreadsheets and dashboards.

02

MEETINGS

Meet over the video to discuss performance and projects to keep you fully informed.

03

PROACTIVE UPDATES

Update you on account issues and new opportunities to keep you in the loop.

testimonials

What clients say about us

PPC in e-commerce is a tricky field to navigate. You also have many “PPC” companies who can easily manipulate ROAS numbers to show you what you want to see by massaging the data. 
Of all the teams we evaluated, SCUBE was the only PPC company that was honest and upfront about the approach they take to PPC. 
We have been very pleased with their performance and I would highly recommend their services to any e-commerce company serious about improving their PPC results.

Sam P.
Owner, Party Supply Retailer

They provide significantly more value than our previous agency. They’ve been able to maintain or exceed our return on ad spend goals while increasing traffic to all of our sites, even in our slower months. The dashboards that they created allow us to dive into the nitty-gritty details of our campaigns.

Derrick Jaros
General Manager, Brandable Box

Thanks to SCUBE Marketing's work, web sales were increased by 350% and maintained four times return on ad spend. The team communicated effectively through bi-weekly meetings and monthly review meetings.

Chris Walters
Director of Marketing, Jay Leno's Garage

They provide significantly more value than our previous agency. They’ve been able to maintain or exceed our return on ad spend goals while increasing traffic to all of our sites, even in our slower months. The dashboards that they created allow us to dive into the nitty-gritty details of our campaigns.

.....
VP of Marketing, Manufacturing Company
Case STUDIES

Google Shopping Case Studies

Our difference

Why SCUBE?

Control your costs

Control your monthly budgets. Pay only for buyers who visit your store. Control your costs down to pin level.

Measure your success

Clear and transparent reporting. Measure traffic, orders, revenue, return on ad spend at the pin level.

Manage your campaigns

Control how your product attributes are presented to the buyers, run promotions, and test new ideas to attract buyers.

Manage your campaigns

Control how your product attributes are presented to the buyers, run promotions, and test new ideas to attract buyers.

Our Team

  • Senior-only teams (Avg. of 8+ yrs experience)
  • Top talent only in the US and Europe
  • Everything in Basecamp – Full visibility
  • Top talent only in the US and Europe
  • Fewer clients. Bigger impact.
  • Direct line to senior leadership
Got complex questions? We love them.

FAQs: Google Shopping & PMAX Management

Whether you're scaling past $1M/month or wrangling a 10,000-SKU feed, we've seen (and solved) the edge cases that kill ROAS. Below are some of the things our clients ask before they hire us.

What’s the difference between PMax and Shopping campaigns?

PMax is an all-in-one campaign type that includes Shopping ads, YouTube, Display, and more. Shopping-only campaigns are more focused and controllable. We often use both strategically.

Why does Google show a great ROAS, but my MER is dropping?

Google often takes credit for repeat purchases or branded searches. We track new customer CAC and blended MER to give a clearer picture.

Why is product feed optimization important?

Your product feed powers your ads. Bad data = bad results. A clean, enriched feed means better targeting, better clicks, and better performance.

How do you ensure accurate attribution in a multi-touch ecommerce funnel?

We implement multi-touch attribution models and integrate data from Google Ads, Google Analytics, and your CRM. This layered tracking reveals which channels and touchpoints truly contribute to conversions and customer lifetime value.

What’s your approach to segmenting campaigns for better control and performance?

We use automation tools combined with manual audits to keep feeds accurate and up-to-date. Our process includes cleaning titles, ensuring correct attributes, resolving errors quickly, and tailoring product data for Google’s evolving requirements to maximize visibility and performance.

How do you manage disapprovals and feed errors at scale?

We monitor accounts and feeds continuously using automated alerts and manual checks. Our team prioritizes quick fixes to minimize downtime, proactively resolves compliance issues, and works closely with Google support if needed.

 Can’t I just run a smart campaign on autopilot?

You can — but you’ll likely leave money on the table. Automation without structure often leads to wasted spend and poor targeting.

Why spend time on campaign management?

Performance declines without active monitoring. Cost-per-click rises. Waste creeps in. Strategy keeps your spend efficient.

What kind of reporting can I expect?

You’ll get access to real-time dashboards via Looker Studio with detailed metrics on spend, conversions, ROAS, and new customer acquisition, plus monthly strategic reviews.

How do you handle feed optimization for large or complex catalogs?

You’ll get access to real-time dashboards via Looker Studio with detailed metrics on spend, conversions, ROAS, and new customer acquisition, plus monthly strategic reviews.

How do you ensure accurate attribution in a multi-touch ecommerce funnel?

We implement multi-touch attribution models and integrate data from Google Ads, Google Analytics, and your CRM. This layered tracking reveals which channels and touchpoints truly contribute to conversions and customer lifetime value.

How do you approach Google Shopping for seasonal or discontinued products?

Seasonal products get dedicated campaigns with adjusted bids and budgets timed for peak demand. For discontinued items, we update the feed immediately to prevent ads from running, avoiding wasted spend and customer confusion.

Our blog

Featured insights

Get tips from the experts to optimize and scale paid advertising campaigns for ecommerce.

Youtube channel

Parts & Profits

Learn how to do aftermarket auto parts ecommerce the right way. Our YouTube channel features videos on PPC, SEO, meta ads, feed optimization and more to help you scale your auto parts business.

Lets Talk

Contact us

If you are an ecommerce business with a market-tested product and strong operations that is facing a growth challenge, request a free SCUBE Game Plan.

If you're qualified, we'll provide a Game Plan call (~60 mins) to present the findings. You will walk away with:
 

  • clear KPIs
  • campaign insights
  • 90-day roadmap

After the game plan you will have an opportunity to ask for a proposal.

request a game plan

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