The SKU Segmentation Framework for Shopping + PMax
Segmentation is the difference between letting Google spend your budget and directing Google to spend your budget on what matters. Here's the framework we use for multi-SKU ecommerce brands.
Why Segmentation Matters More Than Ever
Google's automation pushes toward consolidation. Fewer campaigns, broader targeting, let the algorithm figure it out. That's great for Google's efficiency. It's often terrible for your profitability.
Without segmentation, you can't apply different strategies to different products. You can't scale heroes while protecting margin. You can't liquidate clearance without dragging down your premium line.
The Four Segmentation Dimensions
1. Margin Tier
Group products by contribution margin percentage:
- • High Margin: 50%+ contribution
- • Medium Margin: 30-50% contribution
- • Low Margin: Under 30% contribution
- • Exclude: Below breakeven at any reasonable CPC
2. Commercial Role
What job does this product do for your business?
- • Scale: Growth drivers with proven demand
- • Profit: Steady performers for margin extraction
- • Liquidation: Clearance, end-of-line, cash recovery
- • Gateway: Customer acquisition engines
3. Performance History
What does historical data tell us?
- • Heroes: Top 20% by contribution profit
- • Performers: Reliable converters
- • Untested: New products, insufficient data
- • Zombies: Spend without returns
4. Inventory Status
What's the stock situation?
- • Core: Always in stock, year-round
- • Seasonal: Time-limited availability
- • Low Stock: Reduce spend to manage sell-through
- • Pre-order: Coming soon, build demand
Implementing in Shopping Campaigns
For Standard Shopping, segment using product groups based on custom labels. Create separate campaigns for each major segment with appropriate budgets and targets:
- • High Margin Heroes: Maximum budget, aggressive tROAS
- • Profit Performers: Steady budget, efficient tROAS
- • Liquidation: Flexible ROAS, cash recovery focus
- • Low Margin: Minimal budget, high tROAS or excluded
Implementing in Performance Max
PMax makes segmentation harder but not impossible. Use asset groups to segment by product type, with listing groups filtering by custom label:
- • Separate PMax campaigns for major segments (heroes, performers, liquidation)
- • Use listing groups to control which products appear in each asset group
- • Apply different signals via audience signals per segment
The Feed Foundation
All segmentation starts in your product feed. You need custom labels that reflect commercial reality, not just product taxonomy. This requires ongoing updates as margin, inventory, and strategy change.
A product that was "Scale" three months ago might be "Liquidation" today. Your labels need to keep up.
"Segmentation isn't about complexity for its own sake. It's about applying the right strategy to the right products. Without it, you're hoping the algorithm guesses correctly."
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