Report to report interface allows us to link reports for drill-through reporting in SAP BW, with this you can call a jump target from a BEx query executed in Analysis. You can use the RRI to jump from the executed query (Sender) to another report (Receiver) containing more information. It allows the drilled down from InfoCube to DSO objects for more detailed reporting. You can call targets in BW systems and beyond.
We can use the Report Report Interface (RRI) to call targets that we have defined in your query. To be able to call the targets from executed queries, you must define the targets for the query with the sender/receiver assignment. The sender/receiver assignment is defined in transaction RSBBS in the BW ...