Abstract: A method of building and mapping a product display, the method involves the steps of: (a) utilizing a product display unit having multiple product holding locations, each product holding location for receiving multiple products for display; (b) assigning a parent identification data to the product display unit; (c) for each product holding location, utilizing unique item identification data for at least one product loaded into the product holding location, and linking the unique item identification data to data identifying product type; and (d) storing each unique item identification data and its associated data identifying product type in association with the parent identification data and data identifying the product holding location into which the product is loaded to create a data map of the product display unit and products loaded into the product holding locations of the product display unit.