![]() ![]() The resources of the Source System wait on the target system and ensure that they deliver the message/data with ACKD. SRFC is a means of communication between systems where acknowledgments are required. It is the most common type and is required when the result is required immediately after the execution of sRFC. Requires both the systems (client and server) to be available at the time of communication or data transfer. Handle errors that might occur in the process of communication.Call up certain routines which are necessary to start communication with the remote system. ![]() Convert the data into the format understandable by the remote (target) system.RFC helps to reduce the efforts of programmers, by letting them avoid the re-development of modules and methods at remote systems. The only difference between a remote call of a function module to another server and a local call is a special parameter (destination) that specifies the target server on which the program is to be executed.The R/3 System is also delivered with an RFC-SDK (Software Development Kit) that uses extensive C libraries to allow external programs to be connected to the R/3 System. You maintain the parameters for RFC connections using transaction SM59.The R/3 System automatically generates the additional code (RFC stub) needed for remote calls. The Function Builder (transaction SE37) provides application programmers with a useful environment for programming, documenting and Testing function modules that can be called locally as well as remotely.Function modules are managed in the R/3 System in their own function library, called the Function Builder. They have a defined interface through which data, tables and return codes can be exchanged. Function modules are comparable with C functions or PASCAL procedures. RFC is the protocol for calling special subroutines ( function modules) over the network.RFC connections can always be used across the entire system.This means that an RFC connection you have defined in client 000 can also be used from client 100 (without any difference).The RFC library functions support the C programming language and Visual Basic (on Windows platforms).Remote Function Call (RFC) is a communications interface based on CPI-C, but with more functions and easier for application programmers to use SAP Uses CPIC (Common Programming Interface for Communication) Protocol to transfer data between Systems. ![]() In SAP, RFC Interface system is used for setting-up RFC connections between different SAP systems, and also between a SAP and an external (non-SAP) system. ![]() RFCs can be used to call a different program on the same machine as well, but usually, it is used when ‘ calling‘ and ‘ called‘ function modules/ programs are running on separate machines. It is the process of calling a function module which is residing on a different machine from the caller program. RFC is a SAP protocol to handle communications between systems to simplify the related programming.
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