A Google shopping company should do far more than just “run ads.” In 2026, the real job is fixing your feed, tracking, and campaign structure so Performance Max can scale profitably without wasting budget.
With Google Shopping ads accounting for over 60% of paid clicks for e-commerce retailers, getting this right isn’t optional; it’s where most of your revenue potential sits.
A good Google Shopping company improves results by fixing the foundations first: Merchant Centre feed quality, conversion tracking, and a clear Performance Max structure. This matters because PMax relies on Google AI across bidding, targeting, creatives, and attribution. You can shortlist providers faster by asking how they manage Merchant Centre Next, structure listing groups, and control final URL expansion to reduce wasted spend and improve ROAS.
Key Takeaways
- Feed quality and tracking come before scaling budgets
- Performance Max relies on inputs like feed, assets, and conversion data
- Merchant Centre Next is now standard; your agency must understand it
- Listing groups and URL controls prevent wasted traffic
- The best agencies follow a system: feed → structure → test → optimise → scale
What a “Google Shopping company” actually does
A Google Shopping company manages your product data, builds campaigns, and continuously improves performance, not just launches ads.
Merchant Centre + product feed management
Your product feed is your targeting system.
A strong partner will:
- Optimise titles, descriptions, and attributes
- Fix disapprovals and data errors
- Segment products based on performance
Google highlights in its optimisation tips for Performance Max with Merchant Center feed that feed quality directly impacts visibility and conversion outcomes.
If your feed isn’t optimised, your campaigns will waste spend.
Campaign build (Shopping + Performance Max)
Even with automation, structure still matters.
What good looks like:
- Campaigns segmented by category, margin, or performance
- Strategic listing groups
- Clear separation between testing and scaling campaigns
Better structure gives AI better signals to work with.
Reporting + ongoing optimisation
Strong agencies don’t just report numbers, they drive decisions.
Expect:
- Weekly insights tied to actions
- Testing frameworks
- Clear optimisation roadmap
Reporting without action is just noise.
Why AI Shopping and Performance Max changes what you should look for
Performance Max uses Google AI across bidding, targeting, and creative, so your inputs matter more than manual controls.
PMax uses Google AI across everything
Google confirms that Performance Max automates:
- Bidding
- Targeting
- Creative combinations
- Attribution signals
This means your success depends on:
- Feed quality
- Creative assets
- Conversion tracking accuracy
You don’t optimise settings, you optimise inputs.
Merchant Center Next is now the standard
Google’s Merchant Center Next rollout details show a shift towards a more automated, insight-driven platform.
What this changes:
- Feed management is more dynamic
- Diagnostics are central to performance
- Simpler UI, but higher expectations on data quality
Red flag: If your agency isn’t actively working inside Merchant Center Next, they’re behind.
The platform has changed; your strategy needs to as well.
The 8 questions to ask before hiring a Google Shopping company
The fastest way to shortlist agencies is to ask how they manage feeds, structure, and measurement.
Feed health
Ask:
- How do you prevent and fix disapprovals?
- How do you optimise titles and attributes?
What good looks like:
- Ongoing feed audits
- Use of Merchant Center diagnostics
- Data-led optimisation
Structure
Ask:
- How do you use listing groups?
- How do you control final URL expansion?
Google explains in listing groups and final URL expansion in PMax how these directly impact traffic quality.
What good looks like:
- Strategic product grouping
- Controlled expansion to avoid irrelevant pages
Measurement
Ask:
- How do you handle conversion tracking and attribution?
What good looks like:
- Clean, validated conversion tracking
- Value-based optimisation
- Ongoing data checks
Creative and assets for PMax
Ask:
- How do you build and refresh creative assets?
What good looks like:
- Regular asset testing
- Alignment with product categories
- Continuous iteration
Reporting
Ask:
- What do you report weekly and monthly?
- What actions follow?
What good looks like:
- Performance insights tied to decisions
- Clear testing roadmap
- Revenue-focused reporting
Red flags that cost you money (and how to spot them)
If you see these, your campaigns are likely leaking budget.
“Set and forget” PMax
- No ongoing testing
- No asset refresh
- No structural changes
No feed strategy
- No optimisation process
- No diagnostics workflow
- No product segmentation
Vague reporting
- Focus on impressions and clicks
- No visibility into revenue or ROAS
If there’s no system behind the work, performance will plateau.
Quick comparison: OK vs Great Google Shopping company
Question to ask | Why it matters | What a great answer sounds like |
How do you optimise the product feed? | Feed drives targeting and visibility | “We run ongoing feed audits, optimise titles and attributes, and use Merchant Center diagnostics weekly” |
How do you structure campaigns? | Impacts efficiency and scaling | “We segment campaigns by margin, performance, and testing stages” |
How do you control listing groups and URLs? | Prevents wasted spend | “We tightly manage listing groups and control final URL expansion to maintain relevance” |
How do you track conversions? | Drives AI optimisation | “We use validated, value-based conversion tracking and continuously refine attribution” |
How do you optimise Performance Max? | Determines long-term growth | “We test assets, refine signals, and iterate based on performance data weekly” |
How does this fit into your broader growth strategy
Google Shopping performs best when aligned with your wider marketing strategy, not treated as a standalone channel.
That means:
- Aligning product feed structure with your top-selling categories
- Matching campaign strategy to margins and inventory
- Ensuring tracking reflects real revenue, not just clicks
Shopping campaigns don’t scale on their own. They scale when your marketing strategy, data, and product structure are aligned.
FAQs (People also ask)
What does a Google Shopping company actually do?
They manage your product feed, build campaigns, optimise performance, and improve ROI over time.
Is Performance Max better than standard Shopping?
Not better, but more scalable. It uses AI across multiple channels.
How do I know if my product feed is the problem?
If products aren’t showing, costs are high, or performance is inconsistent, your feed likely needs optimisation.
What should I ask before hiring a Google Shopping agency?
Ask about feed optimisation, campaign structure, tracking, and reporting systems.
How long does PMax take to optimise?
Typically 4–8 weeks, depending on data quality and conversion volume.
What’s Merchant Center Next and does it matter?
It’s Google’s updated platform for managing feeds and insights, and it directly impacts performance.
Next step: get a Shopping + PMax audit
If your campaigns feel like a black box, the issue is rarely budget. It’s usually feed quality, tracking gaps, or poor structure.
A proper audit should uncover:
- Feed health issues and missed opportunities
- Campaign structure inefficiencies
- Conversion tracking gaps
- Performance Max optimisation opportunities
- A clear roadmap to scale profitably
At 3 Phase Marketing, this approach is backed by a conversion-first strategy, data optimisation frameworks, and proven results across ecommerce brands, positioning us as a results-driven Google Shopping Company.
If you want to identify exactly where your campaigns are wasting spend and what to fix first, the next step is a structured review.
Start by contacting 3 Phase Marketing to book your growth call and uncover your biggest growth opportunities.