Data Interfaces

Direct Communication II
Remote call to a routine (RFC)
© SAP AG
Local warehouse Central
computer system
Call function
ABC in
system XYZ
with the
parameters
1,2,3.
Call
Result
System XYZ
Function ABC
Process
parameter values
1, 2, 3 and
return result
The remote call to a function module (routine) in a partner system represents a further level of
complexity in the data exchange process.
RFC is related to RPC (Remote-Procedure-Call) in a UNIX-TCP/IP environment.
RFC is based on CPI-C.
SAP has implemented the RFC interface.
For application programmers, this remote call process is much easier to handle than program-toprogram
communication because data is exchanged only via defined parameters.