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ALE,IDOC's,EDI,BAPI.

Former Member
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hi,

can u help me in getting information about cross applications.

what is cross application indeed.And i want know about ALE,IDOC's,EDI,BAPI.

and what is the relation between RFC AND IDOC.

thanks

Accepted Solutions (1)

Accepted Solutions (1)

Former Member
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Hi Satya Reddy

This will expalin you every thing ...pl..go through

IDOC-Intermediate documents

BAPI-Business ApplicationProgramInterface

BADI-Bsuiness Addins

RFC-Remote Function call

ALE-Application liniking and enabling

The interface concept of the classic R/3 is based on two different strategies: Remote Function Calls (RFC) and data exchange through IDoc message documents. RFC makes direct and synchronous calls of a program in the remote system. If the caller is an external program it will call an RFC-enabled function in R/3 and if the calling program is the R/3 system it will call an RFC-function in another R/3-system or it will call a non-R/3 program through a gateway-proxy (usually rfcexec.exe). BAPIs are a subset of the RFC-enabled function modules, especially designed as Application Programming Interface (API) to the SAP business object, or in other words: are function modules officially released by SAP to be called from external programs.

IDocs are text encoded documents with a rigid structure that are used to exchange data between R/3 and a foreign system. Instead of calling a program in the destination system directly, the data is first packed into an IDoc and then sent to the receiving system, where it is analyzed and properly processed. Therefore an IDoc data exchange is always an asynchronous process. The significant difference between simple RFC-calls and IDoc data exchange is the fact, that every action performed on IDocs are protocolled by R/3 and IDocs can be reprocessed if an error occurred in one of the message steps.

While IDocs have to be understood as a data exchange protocol, EDI and ALE are typical use cases for IDocs. R/3 uses IDocs for both EDI and ALE to deliver data to the receiving system. ALE is basically the scheduling mechanism that defines when and between which partners and what kind of data will be exchanged on a regular or event triggered basis. Such a set-up is called an ALE-scenario.

The philosophical difference between EDI and ALE can be pinned as follows: If we send data to an external partner, we generally speak of EDI, while ALE is a mechanism to reliable replicate data between trusting systems to store a redundant copy of the IDoc data. The difference is made clear, when we think of a purchase order that is sent as an IDoc. If we send the purchase order to a supplier then the supplier will store the purchase order as a sales order. However, if we send the purchase order via ALE to another R/3 system, then the receiving system will store the purchase order also as a purchase order.

Also refer Ravi's weblog

/people/ravikumar.allampallam/blog/2005/08/14/choose-the-right-adapter-to-integrate-with-sap-systems

XI Customer Polling 2006 – Summary of Results

/people/swen.conrad/blog/2007/01/26/xi-customer-polling-2006-150-summary-of-results

Please see the below links

ALE/ IDOC

http://help.sap.com/saphelp_erp2004/helpdata/en/dc/6b835943d711d1893e0000e8323c4f/content.htm

http://www.sapgenie.com/sapgenie/docs/ale_scenario_development_procedure.doc

http://edocs.bea.com/elink/adapter/r3/userhtm/ale.htm#1008419

http://www.netweaverguru.com/EDI/HTML/IDocBook.htm

http://www.sapgenie.com/sapedi/index.htm

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

http://www.sappoint.com/abap/ale2.pdf

http://www.sapgenie.com/sapedi/idoc_abap.htm

http://help.sap.com/saphelp_erp2005/helpdata/en/0b/2a60bb507d11d18ee90000e8366fc2/frameset.htm

http://help.sap.com/saphelp_erp2005/helpdata/en/78/217da751ce11d189570000e829fbbd/frameset.htm

http://www.allsaplinks.com/idoc_sample.html

http://www.sappoint.com/abap.html

In " XI"

IDOC ---> Will be used to sending data in Async mode ...

It is very standard and for better performance Async case

RFC --- > Function module and general will be used to make call to function

sending the function (XI has RFC adapter)

BAPI ---> Other version of RFC (Objected oriented) mostly we will use for Sync

calls (Mostly in XI using proxies we will call BAPI's)

I hope this will answer your question

regards

--- prasad

Answers (2)

Answers (2)

Former Member
0 Kudos

HI,

This questions is repeated,...

Please see the below link you will have the correct answer..

Regards

Chilla..

<i>Points rewarded if it is helpful...</i>

deviprasad_pothireddy
Active Participant
0 Kudos

Hi Satya,

For IDoc info

/people/james.guanzon/blog/2007/01/10/gone-is-the-ifr or use the tcode we60

For BAPI'S ref

use the tcode bapi

Regards,

Deviprasad.