about RFC

[Former Member]

hi

what is RFC? what is the use of RFC?

[Former Member]

Hi,

go through the following links...

http://help.sap.com/printdocu/core/Print46c/en/data/pdf/BCFESDE2/BCFESDE2.pdf

http://help.sap.com/saphelp_47x200/helpdata/en/22/042860488911d189490000e829fbbd/frameset.htm.

***do reward if usefull

vijay

[Former Member]

Hi,

RFC is Remote Function Call. RFC is also a Function module in which in the attributes tab the radaiobutton 'Remote enabled' is checked.

Actually RFC is used by the non-SAP applications to interact with SAP. e.g. If a Lotus Notes application needs to perform some function in SAP, say upload/modify some data into SAP, then they use RFCs to interact with SAP and perform the desired Function.

Regards,

Himanshu

[Former Member]

Hi,

It is nothing but an API (Interface to the SAP and Non-SAP system and SAP to SAP system).

It is used for data communication and transfer.

Reward if useful!

[Former Member]

hi,

Remote Function Call:

RFC is an SAP interface protocol. Based on CPI-C, it considerably simplifies the programming of communication processes between systems.

RFCs enable you to call and execute predefined functions in a remote system - or even in the same system.

RFCs manage the communication process, parameter transfer and error handling.

How to create it.

goto Se37 create a Function module.

in the attribute tab select remote function enabled radio button.

in Sm59 create a destination, select type 3 for R/3 system

specify the ip address of the target system & save it.then click the button test connection to check the connection.

in Function module specify ur import export parameters. it must be pass by value so tick the check box.

write ur code & save it.

Have a look at this link.

http://help.sap.com/printdocu/core/Print46c/en/data/pdf/BCFESDE2/BCFESDE2.pdf

http://help.sap.com/saphelp_47x200/helpdata/en/22/042860488911d189490000e829fbbd/frameset.htm.

Kindly reward points if you find it as useful.

Regards

Reshma

[Former Member]

Hi,

RFC

Remote Function Call:

RFCs are requests that an SAP component sends to invoke functions on remote systems, or calls that remote systems initiate to invoke functions on an SAP component.A process that can accept RFCs from SAP components. This allows SAP components to access functions in external systems. In SAP BC terminology, the process is called a Listener. Listeners are one or more threads on SAP Business Connector that wait for incoming requests from SAP components. Listeners are named and register with an SAP gateway to indicate that they are ready to accept requests. Listeners can accept RFC or tRFC requests.

Transactional RFC (tRFC) and Queued RFC (qRFC). tRFC is used mainly to transfer ALE Intermediate Documents (IDocs).

Transactional RFC:

If an error occurs during a synchronous remote function call, the system cannot tell at what point the error occurred (most crucially, whether the function module was actually processed in R/3 before the operation failed). Restarting a failed call is therefore a dangerous thing to do, since you risk duplicating a completed function call.

To alleviate this problem, you can use transactional RFC, which guarantees that each function call you issue will only be executed once, even if you submit it repeatedly to the R/3 System. The system implements this safeguard by assigning a unique transaction ID (TID) to each transaction that you submit. When you attempt to process the transaction, the system checks whether that TID has already been processed. If it has, the transaction is ignored.

Queued RFC:

When you use transactional RFC, you cannot guarantee the order in which the function calls will be processed in the system (it is quite possible that one call might overtake another). For cases where you need to specify a particular processing order, you can use queued RFC, which is an extension of transactional RFC. In qRFC, you place each function call in a logical queue. A function call cannot be executed until all of its predecessors in the queue have been processed. Queued RFC calls are processed asynchronously.

RFC is an SAP interface protocol. Based on CPI-C, it considerably simplifies the programming of communication processes between systems.

RFCs enable you to call and execute predefined functions in a remote system - or even in the same system.

RFCs manage the communication process, parameter transfer and error handling.

Have a look at this link.

http://help.sap.com/printdocu/core/Print46c/en/data/pdf/BCFESDE2/BCFESDE2.pdf

http://help.sap.com/saphelp_47x200/helpdata/en/22/042860488911d189490000e829fbbd/frameset.htm.

https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/f078394a-4469-2910-c4bf-853c7567...

Please go through the following link. You will get good info on RFC & its types.

https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/f078394a-4469-2910-c4bf-853c7567...

Regards,

Priyanka.