An adaptive interface is provided that is capable of brokering requests from a diverse set of customer host systems to a diverse set of backend servers (or backend device or backend automation system) controlling product dispensing devices and/or systems. The interface may be fully configurable and extensible (i.e., there is a lot of control over the behavior, and the interface can support future features without requiring code changes). Two areas of extensibility of the interface may be adapting to new message formats from the same or new host systems, and supporting new backend services.