A system for managing one or more services during the provision of an application to a user is provided. The system comprises an application component operably connected to a network and configuration data for the user. The configuration data specifies: one or more partner servers configured to supply one or more respective services within one or more respective service categories, each partner server in a service category being chosen from a plurality of available partner servers for the service category and communication parameters for each partner server that allow communication with the partner server over the network. During the provision of the application to the user, the application component uses the configuration data for the user to access a service provided by an appropriate partner server.