Remote function call (RFC) is the de facto protocol of choice of SAP developers, system architects, and administrators, and is the basis of nearly all major integration points in an SAP system landscape. You’ve probably used RFC to call function modules on other SAP systems, or used one of SAP’s standalone RFC libraries. But did you know that there are other SAP-supplied RFCs that optimize system resources and performance? This article, the first in a two-part series, takes you on a brief tour of the five RFC types available with SAP Basis 4.0B and higher, and teaches you how to use them in your ABAP programs.
Masoud Aghadavoodi Jolfaei
Masoud Aghadavoodi Jolfaei studied computer science and received his doctorate in the area of satellite communication at Aachen University of Technology. He joined SAP AG in 1994 and became a member of the ABAP Connectivity group, where he works as a development architect on the design, tools, and rollout of the ABAP communication infrastructure. In addition, Masoud is responsible for the integration of Internet protocols (HTTP, HTTPS, and SMTP) into the ABAP runtime.
You may contact the author at masoud.aghadavoodi.jolfaei@sap.com.
If you have comments about this article or publication, or would like to submit an article idea, please contact the editor.

Eduard Neuwirt
Eduard Neuwirt joined SAP AG in 1999 and became a member of the ABAP Connectivity group, where he worked on the design, tools, and rollout of the ABAP communication infrastructure. Eduard was also responsible for the development of the remote function call (RFC) tools on the external side, including the RFC library and JRFC. Since September 2005, Eduard has worked for the SAP Defense and Public Security Department. He is responsible for the interfaces to external military non-SAP systems.
You may contact the author at eduard.neuwirt@sap.com.
If you have comments about this article or publication, or would like to submit an article idea, please contact the editor.