Described is a data entry graphical user interface (GUI) system for facilitating entry of incontinence product information by a consumer. The data entry GUI system includes several layered interfaces that may be accessed in sequence and/or at discretion by a user. Each of the layered interfaces facilitates entry of specific incontinence product information for storage in a manufacture database. The entered information may be used to fulfill product acquisition requests, forecast future use of incontinence products, or provide simulation data relating to incontinence product use.