You can get the “RFC connection CPIC-CALL: ThSAPOCMINIT, cmRc=2 thRc=679″ error while trying to make a connection on RZ70 or SLD_UC configuration, then you need to check “proxyinfo” file entry to get rid of this error.
This is an example result of my error screen while trying RFC defination SLD_UC check on transaciton SM59 ;
Solution ;
Yo need to edit “proxyfile” on target system to give the permission for connections from the source system ;
Ps. Restart the system or ICM before the test connection