Abstract: Operations include determining a sales conversion window based on product characteristics and/or user characteristics. Product characteristics may include a type of product, a price of the product, a style of the product, and a lifetime of the product. User characteristics may include conversion windows for prior purchases by a user, browsing history, and demographic information. The system may determine the sales conversion window based on events indicative of user interest. The events may include viewing a product, liking a product, sharing a product, adding a product to a cart for purchase, and purchasing a product. One or more events may be used to generate a model for the sales conversion window. Some embodiments execute one or more actions for generating sales during the computed sales conversion window.