Learn how to apply performance-based product segmentation to your ecommerce catalogue and Google Ads campaigns for smarter resource allocation and higher ROAS.
Running an ecommerce business means juggling hundredsâsometimes thousandsâof products. But here's the uncomfortable truth: not all products deserve equal attention. Some drive your revenue, others show potential, and many quietly drain your ad budget while you're not looking.
This is where performance-based segmentation comes in. Inspired by the classic BCG Matrix but adapted for modern ecommerce, this framework transforms how you allocate marketing spend, manage inventory, and optimise Google Ads campaigns.
The DukesMatrix Approach: Five Performance Segments
While the traditional BCG Matrix uses growth rate vs. market share, DukesMatrix takes a more practical approach for ecommerce: ranking products by revenue contribution and segmenting them into five distinct performance tiers.
This creates five segments: Cash Cows, Contenders, Stars, Dogs, and Zombies.
The Five Segments Explained
đ° Cash Cows: Your Top Revenue Generators
Cash Cows are your highest-performing products by revenue. These are the workhorses that generate the bulk of your sales and profit. They've proven themselves and deserve protection.
Characteristics:
- Highest revenue contribution in your catalogue
- Consistent, reliable conversion rates
- Strong ROAS performance
- Often your bestsellers or hero products
Strategic Action: Protect and optimise. Cash Cows deserve dedicated campaigns with premium bid strategies. Don't experiment hereâmaximise efficiency and defend your position.
â Contenders: Strong Performers with Growth Potential
Contenders are your second-tier performers. They're doing well and show potential for even more growth. With the right investment, Contenders can become Cash Cows.
Characteristics:
- Strong but not top-tier revenue
- Good conversion rates
- Room for scaling
- Often trending products or growing categories
Strategic Action: Invest to scale. Contenders deserve aggressive bidding and budget allocation. Test creative variations and expand audience targeting to push them toward Cash Cow status.
đ„ Stars: Mid-Tier Products with Potential
Stars sit in the middle of your catalogue. They're not losing money, but they're not standouts either. These products need testing and optimisation to determine if they can move upâor should move down.
Characteristics:
- Moderate revenue contribution
- Inconsistent or average performance
- May be newer products still finding their audience
- Potential for improvement with optimisation
Strategic Action: Test and evaluate. Stars need experimentationâA/B test creative, try different audiences, optimise listings. Set clear KPIs and timelines. Promote winners, demote losers.
đ Dogs: Low Performers Draining Budget
Dogs are underperforming products that consume ad spend without delivering adequate returns. They're dragging down your overall ROAS and stealing budget from your winners.
Characteristics:
- Low revenue contribution relative to spend
- Below-average ROAS
- Declining or stagnant performance
- Often older products or poor product-market fit
Strategic Action: Reduce or exclude. Dogs should have minimal ad spend. Move them to Shopping-only campaigns with low bids, or exclude them from paid campaigns entirely. Consider clearance pricing or discontinuation.
đ§ Zombies: No Sales, Wasting Impressions
Zombies are the worst categoryâproducts getting impressions but generating zero or near-zero sales. They're literally dead weight in your catalogue, wasting impressions that could go to better products.
Characteristics:
- Zero or near-zero conversions
- Getting impressions but no clicks, or clicks but no sales
- Often outdated, overpriced, or poorly listed products
- Negative contribution to campaign performance
Strategic Action: Exclude immediately. Zombies should be removed from all paid campaigns without hesitation. Every impression a Zombie receives is an impression stolen from a Cash Cow or Star.
How DukesMatrix Segments Your Products
The Revenue-Based Approach
Unlike traditional BCG Matrix which requires complex growth rate calculations, DukesMatrix uses a simpler, more actionable approach:
- Pull performance data from Google Ads and Merchant Center
- Rank products by revenue contribution over a meaningful time period (typically 30-90 days)
- Segment into tiers based on performance thresholds
- Identify Zombies by flagging products with impressions but no conversions
Automated Classification
Manually categorizing hundreds or thousands of SKUs is impractical. DukesMatrix automates this entire process:
- Connects to your Google Ads and Merchant Center
- Pulls conversion and revenue data automatically
- Applies segmentation logic to your entire catalogue
- Updates classifications as performance changes
- Syncs segments to Merchant Center as Custom Labels
Bidding Strategies by Segment
Cash Cows: Protect and Maximize
Goal: Maximum efficiency and profit extraction
- Bidding: Conservative tROAS (aim for your target or higher)
- Budget: Sufficient to maintain impression share
- Campaign Type: Dedicated PMax or Shopping campaigns
- Tactics: Defend against competitors, optimise for profit margin
Contenders: Scale Aggressively
Goal: Capture growth and push toward Cash Cow status
- Bidding: Aggressive tROAS (accept 10-20% lower than target for growth)
- Budget: No caps if hitting reasonable efficiency
- Campaign Type: Dedicated asset groups with strong creative
- Tactics: Test audience expansion, increase bids on high-performing queries
Stars: Test and Learn
Goal: Determine potential and sort winners from losers
- Bidding: Moderate tROAS or Maximize Conversions
- Budget: Controlled test budget with clear evaluation periods
- Campaign Type: Testing campaigns or mixed asset groups
- Tactics: A/B test creative, try different audience signals, optimise listings
Dogs: Minimize Exposure
Goal: Reduce wasted spend
- Bidding: Minimum bids or exclude from PMax
- Budget: Near-zero for paid campaigns
- Campaign Type: Shopping-only with low priority (if at all)
- Tactics: Consider clearance pricing, improve listings, or discontinue
Zombies: Full Exclusion
Goal: Zero ad spend
- Bidding: N/Aâexcluded from all paid campaigns
- Budget: $0
- Campaign Type: None
- Tactics: Fix listing issues, reprice, or remove from catalogue
Implementing Segment-Based Bidding in Google Ads
Using Custom Labels
DukesMatrix syncs your product segments to Merchant Center as Custom Labels:
custom_label_0 = "cashcow"
custom_label_0 = "star"
custom_label_0 = "contender"
custom_label_0 = "dog"
custom_label_0 = "zombie"
Use these labels to:
- Create separate listing groups in PMax asset groups
- Build dedicated Shopping campaigns per segment
- Apply bid adjustments based on segment
- Exclude Dogs and Zombies from high-priority campaigns
Campaign Structure Example
For a typical ecommerce store:
PMax - Heroes (Cash Cows + Contenders)
- Highest budget allocation
- Aggressive tROAS bidding
- Best creative assets
PMax - Growth (Stars)
- Test budget
- Moderate tROAS
- Creative testing
Shopping - Low Priority (Dogs)
- Minimal budget
- High tROAS target
- Catch any profitable conversions
Excluded (Zombies)
- Not in any paid campaigns
Key Takeaways
DukesMatrix segments products into five tiers: Cash Cows, Contenders, Stars, Dogs, and Zombiesâranked by revenue contribution.
Cash Cows are your priority. Protect them with dedicated campaigns and efficient bidding.
Contenders deserve investment. Scale aggressively to push them toward Cash Cow status.
Stars need testing. Set clear evaluation criteria and promote winners.
Dogs should be minimised. Reduce spend or exclude from performance campaigns.
Zombies must be excluded. Zero toleranceâevery Zombie impression is wasted.
Automate your segmentation. Manual classification doesn't scale. Tools like DukesMatrix handle it automatically.
Review regularly. Products move between segments as performance changes. Keep your classifications current.
Ready to segment your catalogue automatically? See how DukesMatrix classifies products and syncs to Google Ads â