SAP Message RSO368 - No RFC connection to system &1: &2&3&4

Diagnosis No RFC connection for the selected system &V1& could be made. System Response No Metadata was imported by this system, or exported into this system. Procedure If this message contains the note that a function module does not existthen you chose a BW system that does not have Release 2.0B or higher.It is not possible to import or export Metadata for these systems. Otherwise check the RFC destination (transaction SM59) and make theconnection again.