7 October 2026International edition
Vol. I · No.
7 October 2026
AI in Fashion
DAILY
The daily briefing on AI in the fashion business
Where fashion meets artificial intelligence.
Glossary

What is a propensity model in fashion?

A propensity model predicts how likely a customer or account is to take a specific action, such as buying, re-ordering, responding to a campaign or returning a product.

In short

A propensity model is a predictive model that estimates the probability that a customer will take a particular action. In fashion that action might be buying a new category, placing a re-order, opening an email or returning an item, and the resulting score helps teams decide whom to target and how.

How does it work in practice?

The model is trained on historical data where the outcome is known, for example which customers bought outerwear last season. It learns which characteristics and behaviours preceded that action, such as recent purchases, browsing activity, store visits or order frequency. It then scores current customers or accounts with a probability between zero and one.

Typical fashion use cases include:

  • Re-order propensity for wholesale accounts, guiding sales reps on whom to contact first.
  • Category propensity, identifying customers likely to buy footwear or accessories.
  • Campaign response, deciding who should receive a promotion or preview invitation.
  • Return propensity, flagging orders likely to come back.

Why does it matter for fashion businesses?

Marketing budgets and sales time are limited. Sending every offer to every customer wastes money and can annoy loyal clients. Propensity scores allow more focused activity, for example inviting the accounts most likely to expand their order to a market week appointment, or offering early access only to customers with a high likelihood to buy.

How is AI changing it?

Modern machine learning can use richer data such as browsing sequences, product attributes and images, and update scores more frequently. Language models can turn the scores into plain-language explanations or suggested talking points for sales reps and store staff.

Common pitfalls

  • Targeting people who would buy anyway, rather than those an action actually influences.
  • Outdated scores that are not refreshed with recent behaviour.
  • Unclear definitions of the target action and time frame.
  • Privacy and consent issues when using personal data.

Frequently asked questions

What is the difference between a propensity model and customer segmentation?

Segmentation groups customers with similar characteristics. A propensity model predicts the likelihood of a specific action for each individual customer or account.

Can propensity models be used in B2B wholesale?

Yes. Brands can score retail accounts on their likelihood to re-order, try new categories or reduce their orders, which helps sales teams plan their time.

All terms