What are upselling and cross-selling?
First of all, let's define what upselling and cross-selling are and how they are different. Upselling is when you sell a more expensive version of a product than what the customer is considering or when you offer an upgraded product to what the customer has already bought from you. This could include a video surveillance system with more advanced features or an upgraded alarm system to what the customer currently has installed in their home.
Cross-selling is when you sell a customer a related product that will either complement or enhance the initial product being purchased. An example would be to offer life safety devices such as carbon monoxide and smoke sensors after selling the customer a home alarm system.