Technical Description 

Getting Connected

RFC and programming information for RFC client/server programs can be summarized as follows:

·        An RFC connection is always initiated by an RFC client program.

·        An RFC connection is always built up in two steps:

¡        Connection from an RFC client to the SAP gateway

¡        Connection from the SAP gateway to an RFC server

·        There are different ways of starting or connecting to an RFC server program:

¡        An RFC server program can be started by the SAP gateway, by the currently running SAPGUI or by the currently running application server.

¡        You can register an RFC server program at an SAP gateway. The program waits for RFC requests from SAP systems.

For program start-up options while establishing an RFC connection, see RFC Client Programs and RFC Server Programs.