A huge company selling shoes, with hundreds of brick-and-mortar stores, was not able to categorize and segment its customers. Without this information, all the product categories management activities were difficult and required a lot of manual effort in order to make correct business decisions. The Client needed to analyze product categories based on the shopper profiles in order to optimize its offer and adjust it to customer’s needs and all of this needed to be done semi-automatically based on the real data from loyalty cards, online stores, and sales trends and numbers.