Glossary/Retail Media & Commerce/Units Per Transaction (UPT)
Retail Media & Commerce
Units Per Transaction (UPT)
The average number of items in each order, used to judge bundling, cross-selling, and merchandising effectiveness.
By Brandon Mina·CEO, BrandPilot AI·Updated November 2026
Short answer
Units per transaction (UPT) is the average number of items in each order or sale. It is calculated by dividing total units sold by the number of transactions. Retailers use UPT to judge the effectiveness of bundling, cross-selling, store layout, and merchandising, since higher UPT usually raises revenue per customer.