Systems, methods, and software are disclosed herein for facilitating dynamic sharing of application data among multiple isolated applications executing on one or more application platforms. In an implementation, a decision service monitors event configuration information corresponding to an event, monitors application data feeds provided by one or more producer applications associated with the event, detects an event reconfiguration trigger based on the one or more application data feeds, and responsive to the event reconfiguration trigger, automatically modifies the event configuration information. The decision service then directs at least on application platforms to invoke at least one data consumer application for execution of at least one actions based, at least in part, on the modified event configuration information.