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Glossary

Product segmentation

Product segmentation in ecommerce advertising groups products by shared performance or business characteristics so merchants can give each group a suitable priority.

By Berend Vrakking, founder of Product Metrics. Updated 28 October 2026.

Product Segmentation example

Performance groups
Product groupAdvertising clicksReturn
StarsHighHigh
Question MarksHighMedium
DogsHighLow

These groups describe advertising volume and return against your chosen target, not sales volume. Illustrative data.

Put it into practice

Product Segmentation: one product and the whole account

Product Metrics ML puts products into six segments using advertising click volume and return measured as ROAS or POAS. An account average hides this distribution; product groups show where to investigate performance.

The six segments are Stars, Question Marks, Cash Cows, Dogs, Drainers and Ghosts. Product Metrics writes approved segment labels to Merchant Center. Configured campaigns then use those labels; the merchant controls campaign structure and priorities.

Product Segmentation: common mistake

Confusing a segment with an instruction to change a price or budget automatically. A segment describes performance; merchant rules and campaign configuration determine how it is used.

Product Segmentation: questions

Do I need margin data to segment products?

No. Product Metrics segments products using ad clicks and ROAS, so you can start without margin data. Once you connect margins, it can use POAS as the return measure instead, which shows whether each product’s advertising covers that product’s own costs.

Are segments the same as custom labels?

No. A segment is the classification of a product, such as Stars or Dogs, based on advertising clicks and return. A custom label is a Merchant Center field that can carry that segment into your campaigns. Product Metrics writes approved segments to custom labels, and you decide how campaigns use them.

Keep reading

  • POAS calculatorCompare contribution return before choosing priorities.
  • Custom labelsThe fields that carry a product group into campaigns.
  • ROASOne return measure used for segmentation.