An application gateway server is provided for managing communication between an application executing in a runtime environment on a device and at least one backend server. The application gateway server comprises a message listener, a connector subsystem, and a messaging subsystem. The message listener receives messages from the component applications. The connector subsystem comprises a plurality of connectors, each of the plurality of connectors for communicating with one or more associated backend servers. The messaging subsystem comprises a message broker for processing messages received from the message listener and transmitting them to an associated one of the plurality of connectors and a communication mapping for identifying which of the plurality of connectors is to be used for each message in accordance with an origin of the message.