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Remote Function Call(RFC) in SAP

Last Updated : 29 Nov, 2023
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SAP is a main business enterprise software corporation that offers answers for diverse enterprise strategies, inclusive of accounting, human assets, deliver chain, customer courting management, and more. SAP structures are complicated and regularly include more than one additive that wants to communicate and interact with every other, as well as with external structures.


Remote Function Call(RFC) in SAP

What is the full form of RFC in SAP?

RFC stands for Remote Function Call in SAP. It is a preferred SAP interface for communication between SAP structures. RFC in SAP is designed to facilitate efficient and reliable verbal exchange among SAP systems and to enable integration with outside systems. RFC in SAP helps synchronous and asynchronous communication as well as transactional and queued communication.

What is RFC in SAP?

RFC in SAP is a technology that permits a program or software in one SAP gadget to name and execute a characteristic or a way in some other SAP machine, or in a non-SAP device. The feature or the approach this is referred to as remotely is known as an RFC feature or an RFC approach. The gadget that calls the RFC feature or method is known as the RFC purchaser, and the device that executes the RFC function or approach is called the RFC server.

RFC in SAP is primarily based at the consumer-server version, wherein the RFC purchaser sends a request to the RFC server, and the RFC server responds with a end result. The RFC client and the RFC server may be positioned on the identical server or on one of a kind servers, and they are able to speak through different protocols, inclusive of TCP/IP, HTTP, or SOAP.

Interfaces in SAP RFC

  • An interface is a hard and fast of rules or specs that defines how two systems or components talk and interact with every different. An interface in RFC is a set of RFC functions or strategies that have a not unusual purpose or functionality. An interface in RFC defines the input and output parameters, the exceptions, and the documentation of the RFC features or methods.
  • An interface in RFC can be both an SAP ABAP interface or a non-ABAP interface. An ABAP interface is an interface that is defined and implemented inside the ABAP programming language, which is the local language of SAP structures. A non-ABAP interface is an interface this is defined and applied in a non-ABAP programming language, including Java, C, or C .
  • An interface in RFC may be either a popular interface or a custom interface. A trendy interface is an interface this is furnished with the aid of SAP as part of its fashionable software program. A custom interface is an interface this is created by the user or the developer to fulfill unique necessities or needs.

Functions of the RFC Interface in SAP

The RFC interface performs the subsequent capabilities:

  • It permits communication between SAP structures, or between SAP structures and non-SAP structures, through allowing far flung characteristic calls.
  • It guarantees information consistency and integrity via moving facts in a based and steady way.
  • It handles errors and exceptions by way of elevating and catching them appropriately.
  • It gives documentation and outline of the RFC capabilities or methods, their parameters, and their exceptions.

Importance Points of RFC in SAP

RFC is an vital technology in SAP for the subsequent reasons:

  • It permits integration and interoperability between different SAP structures, or among SAP systems and non-SAP systems, that’s critical for complex and dispensed enterprise strategies.
  • It improves overall performance and efficiency with the aid of reducing network traffic and data switch time, and through enabling parallel processing and load balancing.
  • It supports distinctive communication modes and eventualities, along with synchronous, asynchronous, transactional, and queued communication, which cater to specific business desires and requirements.
  • It gives flexibility and scalability by using allowing the introduction and modification of custom interfaces and RFC functions or strategies, in addition to the use of various programming languages and protocols.

Advantages of RFC in SAP

RFCin SAP has the subsequent advantages:

  • It is a widespread and confirmed technology that is extensively used and supported by SAP and its partners.
  • It is easy to apply and put into effect, as it calls for minimum coding and configuration.
  • It is secure and reliable, as it uses encryption and authentication mechanisms, and handles mistakes and exceptions gracefully.
  • It is like minded and adaptable, because it supports distinct platforms, operating structures, databases, and applications.

Types of RFC in SAP

RFC can be classified into different types based on the communication mode, the communication direction, and the communication scenario.


Types of RFC in SAP

  • Synchronous RFC (sRFC): This is an instantaneous verbal exchange technique wherein the systems involved want to be available on the time of the call123. The calling software waits till the requested manner is finished at the far flung system1. It’s like making a cellphone call and waiting for the man or woman on the opposite quit to pick up before you can talk.
  • Asynchronous RFC (aRFC): This is an oblique verbal exchange method where the calling application doesn’t ought to watch for the far flung gadget to finish processing456. It’s like sending an e-mail; you send the e-mail (the request) after which pass on in your subsequent mission. You don’t must await the recipient to examine the e-mail and reply.
  • Transactional RFC (tRFC): This is a unique sort of RFC in which the known as function module is executed exactly as soon as within the faraway system78. The faraway machine doesn’t need to be available on the time the RFC consumer program is executing a tRFC7. It’s like sending a registered mail; you send it as soon as, and it’s assured to be introduced.
  • Queued RFC (qRFC): This is an extension of tRFC that allows you to serialize tRFC calls the usage of a queue9101. This approach that the calls are covered up and processed in a selected order. It’s like standing in a queue; every body waits their flip, and those are served in the order they arrived.
  • Background RFC (bgRFC): This is an superior version of tRFC and qRFC, and it’s advocated to apply bgRFC as opposed to tRFC111213. It works on the premise of gadgets and plays better compared to the conventional tRFC and qRFC versions12. It’s like having a non-public assistant who looks after tasks for you within the history even as you focus on other matters.

Types of SAP RFC Connections

  • Type 3: This type of RFC Connection is used to specify connection between SAP ABAP systems.
  • Type I: This type of RFC connection Entries list in ABAP systems that are linked to the same database as the one being used. These entries are set at once and cannot be changed.
  • Type T: IIn This type of connection Destinations are links to outside applications that receive RFCs using the RFC API.


RFC in SAP is a generation that enables verbal exchange among special SAP structures, or between SAP structures and non-SAP structures. RFC allows a software or an application in one SAP gadget to invoke and execute capabilities or methods in some other SAP device seamlessly and effectively. RFC in SAP has numerous interfaces, features, importance, blessings, kinds, and connections. RFC in SAP also supports debugging of far flung feature calls to some other device.

RFC in SAP is a powerful and flexible technology that facilitates integration and interoperability among SAP systems, and with external structures. RFC in SAP is vital for complicated and disbursed commercial enterprise procedures, and for achieving most desirable overall performance and efficiency. RFC in SAP is a popular and proven generation this is broadly used and supported through SAP and its partners.

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