· RfcOpen
Open RFC connection (RFC client program)
· RfcConnect
Open RFC connection to the SAP system via LOAD BALANCING
· RfcAccept
Accept RFC connection (RFC server program)
· RfcClose
Close RFC connection
· RfcAbort
Terminate RFC connection and send error text to ABAP program
· RfcConnArgv
Set the parameters required for RfcOpen
· RfcConnArgv3
Set the parameters required for RfcOpen
· RfcEnvironment
Set RFC parameters for RFC library
· RfcLastError
Get extended error specification after an RFC error