Abstract: Order management methods, systems and devices are disclosed. A menu associated with a general service zone (8), such as a restaurant is presented to an ordering user, typically via a screen (11) of a mobile electronic device (10), and input selections are received from the ordering user to generate an order therefrom. An order comprises at least one selected menu item from the menu, and also a unique order identifier. One of a plurality of serving locations (8a, 8b, 8c) within the general service zone (8) is chosen, and a serving location identifier that uniquely identifies the chosen serving location is determined. The order and the determined serving location identifier are associated with one another. The order and the serving location identifier are transmitted to a service instruction system (4) of the general service zone (8). A service instruction is issued, via the service instruction system (8), to service staff to fulfil the order at said chosen serving location.