upselling

Upselling is a sales technique where a seller invites the customer to purchase more expensive items, upgrades, or other add-ons to generate more revenue. While it usually involves marketing more profitable services or products, it can be simply exposing the customer to other options that were perhaps not considered.

It is distinct from cross-selling, in which a seller tries to sell something else. In practice, large businesses usually combine upselling and cross-selling to maximize revenue.