topic Re: RFC in Application Development and Automation Discussions

RFC

Former Member — Mon, 25 Jun 2007 08:07:18 GMT

Hi All,

What is RFC and BAPI?

What are the Types of RFC and give me explanation briefly?

Award Points

Thanks & Regards

SEK

Re: RFC

Former Member — Mon, 25 Jun 2007 08:09:30 GMT

Hi Raja,

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.

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.

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-853c75674694

BAPI :

BAPIs (Business Application Programming Interfaces) are the standard SAP interfaces. They play an important role in the technical integration and in the exchange of business data between SAP components, and between SAP and non-SAP components. BAPIs enable you to integrate these components and are therefore an important part of developing integration scenarios where multiple components are connected to each other, either on a local network or on the Internet.

BAPIs allow integration at the business level, not the technical level. This provides for greater stability of the linkage and independence from the underlying communication technology.

BAPI is a Remote enabled function module.

Just follow this simple procedure or steps to create a BAPI.

1. Defining BAPI Data structures in SE11

2. Program a RFC enabled BAPI function module for each method

3. Create a Business object for the BAPI in the BOR

4. Documentation the BAPI

5. Generate ALE interface for asynchronous BAPIs

6. Generate and release

Thanks.

Message was edited by:

Viji

Re: RFC

Former Member — Mon, 25 Jun 2007 08:09:50 GMT

just refer to the link below. No need to search another link

http://www.sapmaterial.com/?gclid=CN322K28t4sCFQ-WbgodSGbK2g (SAP link- helpful material )

will help u definitely

regards

ravish

plz dont forget to reward points if helpful

Re: RFC

Former Member — Mon, 25 Jun 2007 08:11:04 GMT

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-853c75674694

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-853c75674694

BAPI

BAPI stands for Business API(Application Program Interface).

A BAPI is remotely enabled function module ie it can be invoked from remote programs like standalone JAVA programs, web interface etc..

You can make your function module remotely enabled in attributes of Function module but

A BAPI are standard SAP function modules provided by SAP for remote access. Also they are part of Businees Objest Repository(BOR).

Step by Step BAPI :

http://www.sapgenie.com/abap/bapi/example.htm

List of all BAPI's:

http://www.planetsap.com/LIST_ALL_BAPIs.htm

for BAPI's

http://www.sappoint.com/abap/bapiintro.pdf

http://www.sappoint.com/abap/bapiprg.pdf

http://www.sappoint.com/abap/bapiactx.pdf

http://www.sappoint.com/abap/bapilst.pdf

http://www.sappoint.com/abap/bapiexer.pdf

http://service.sap.com/ale

http://service.sap.com/bapi

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

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

http://help.sap.com/printdocu/core/Print46c/en/data/pdf/BCFESDE8/BCFESDE8.pdf

http://www.planetsap.com/Bapi_main_page.htm

http://www.topxml.com/sap/sap_idoc_xml.asp

http://www.sapdevelopment.co.uk/

http://www.sapdevelopment.co.uk/java/jco/bapi_jco.pdf

Also refer to the following links..

www.sappoint.com/abap/bapiintro.pdf

www.sap-img.com/bapi.htm

www.sap-img.com/abap/bapi-conventions.htm

www.planetsap.com/Bapi_main_page.htm

www.sapgenie.com/abap/bapi/index.htm

Checkout !!

http://searchsap.techtarget.com/originalContent/0,289142,sid21_gci948835,00.html

http://techrepublic.com.com/5100-6329-1051160.html#

http://www.sap-img.com/bapi.htm

http://www.sap-img.com/abap/bapi-conventions.htm

http://www.sappoint.com/abap/bapiintro.pdf

Regards,

Padmam.

Re: RFC

seshatalpasai_madala — Mon, 25 Jun 2007 08:11:30 GMT

Hi,

RFC is stands for Remote-Function-Call, when you create a Function module and mark it as Remote Enabled then that FM can be access from any other system (Both SAP and Non-SAP systems).

BAPI stands for Business Application Program Interface: They are actually methods of a Busines object defined in BOR( Business object repository), they are internally implemented as RFC function modules.

Regards,

Sesh

Re: RFC

Former Member — Mon, 25 Jun 2007 08:21:02 GMT

Hi,

BAPI stands for Business API(Application Program Interface).

I have answered this question before..

A BAPI is remotely enabled function module ie it can be invoked from remote programs like standalone JAVA programs, web interface etc..

You can make your function module remotely enabled in attributes of Function module but

A BAPI are standard SAP function modules provided by SAP for remote access. Also they are part of Businees Objest Repository(BOR).

BAPI are RFC enabled function modules. the difference between RFc and BAPI are business objects. You create business objects and those are then registered in your BOR (Business Object Repository) which can be accessed outside the SAP system by using some other applications (Non-SAP) such as VB or JAVA. in this case u only specify the business object and its method from external system in BAPI there is no direct system call. while RFC are direct system call Some BAPIs provide basic functions and can be used for most SAP business object types. These BAPIs should be implemented the same for all business object types. Standardized BAPIs are easier to use and prevent users having to deal with a number of different BAPIs. Whenever possible, a standardized BAPI must be used in preference to an individual BAPI.

http://help.sap.com/saphelp_46c/helpdata/en/9b/417f07ee2211d1ad14080009b0fb56/frameset.htm

http://searchsap.techtarget.com/originalContent/0,289142,sid21_gci948835,00.html

Checkout !!

http://searchsap.techtarget.com/originalContent/0,289142,sid21_gci948835,00.html

http://techrepublic.com.com/5100-6329-1051160.html#

http://www.sap-img.com/bapi.htm

http://www.sap-img.com/abap/bapi-conventions.htm

http://www.sappoint.com/abap/bapiintro.pdf

http://www.sapgenie.com/abap/bapi/example.htm

http://www.sappoint.com/abap/bapiintro.pdf

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

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

http://help.sap.com/printdocu/core/Print46c/en/data/pdf/BCFESDE8/BCFESDE8.pdf

Don't forget to Reward if helpful.

Re: RFC

Former Member — Mon, 25 Jun 2007 08:22:58 GMT

HI,

RFC is basically to connect between two systems.it is a SAP interface protocol based on CPI-C used to simplify the programming of communication processes between systems.

RFCs enable you to call and execute predefined functions in a remote system - or in the same system. They manage the communication process, parameter transfer and error handling.

ABOUT BAPI,

The SAP business objects stored in the Business Object Repository (BOR) encapsulate their data and processes. External access to the data and processes is only possible by means of specific methods - BAPIs (Business Application Program Interfaces).

A BAPI is defined as a method of an SAP Business Object Type or of an SAP Interface Type.

The functions that are implemented in the SAP business CostCenter object type include, for example, listing all the available cost centers. The business object type CostCenter provides the BAPI GetList() for this purpose.

The BAPIs in the SAP Systems are currently implemented as function modules, which are created and managed in the Function Builder. Each function module underlying a BAPI:

Supports the Remote Function Call (RFC) protocol

Has been assigned as a method to a SAP business object type in the Business Object Repository Is processed without returning any screen dialogs to the calling application Integration

Prerequisites

To use a BAPI method to access data in SAP business objects, an application program only needs to ‘know’ how to call the method. The following information is required:

The name of the BAPI

Details of the BAPI interface:

Import parameters, which contain data to be transferred from the calling program to the BAPI

Export parameters, which contain data to be transferred from the BAPI back to the calling program

Import/export (table) parameters for both importing and exporting data.

Application programmers can work with SAP business objects and implement their BAPIs without needing to know or consider the underlying implementation and coding details for the object.