Methods and systems are used for providing a generic data state transfer interface to the state of data and information for a reporting system. As an example, a generic data status request is received, by a generic data source access function of a backend source system, from a reporting system. In response to the generic data status request being received, a first set of notifications is retrieved, by the generic data source access function, from a first source database. Each notification of the first set of notifications to each corresponding target notification of a set of target notifications in a generic data status response is mapped, by the generic data source access function, using a customizable mapping function based on a specific application of a plurality of applications in each notification. The generic data status response is transmitted, by the generic data source access function, to the reporting system.