What are idocs, BAPI, RFC?

Question

Hi,
What are idocs, BAPI, RFC?
Regards,
anuj

Answer 1

Hii,
BAPIs and RFCs are the functions exposed by SAP, when it comes to the integration part, you have to know that particular BAPI or RFC. For example, if you want to get table data or want to query to the SAP table then you use RFC_READ_TABLE. Similarly if you want to know whether customer is existing, you need to know which RFC/BAPI has this info. May I know which tool are you using, are you talking about generating a proxy and playing around that.
Data Creation in Idoc
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.
IDoc is a intermediate document to exchange data between two SAP Systems.
*IDocs are structured ASCII files (or a virtual equivalent).
*Electronic Interchange Document
*They are the file format used by SAP R/3 to exchange data with foreign systems.
*Data Is transmitted in ASCII format, i.e. human readable form
*IDocs exchange messages
*IDocs are used like classical interface files
IDOC types are templates for specific message types depending on what is the business document, you want to exchange.
WE30 - you can create a IDOC type.
An IDOC with data, will have to be triggered by the application that is trying to send out the data.
FOr testing you can use WE19.
How to create idoc?
*WE30 - you can create a IDOC type
For more information in details on the same along with the examples can be viewed on:
http://www.netweaverguru.com/EDI/HTML/IDocBook.htm#_Toc8400404
http://help.sap.com/saphelp_erp2005/helpdata/en/0b/2a6620507d11d18ee90000e8366fc2/frameset.htm
http://www.sappoint.com/presentation.html
http://www.allsaplinks.com/idoc_search.html
http://www.sapgenie.com/sapedi/idoc_abap.htm
http://www.erpgenie.com/sapedi/idoc_abap.htm
To Create Idoc we need to follow these steps:
Create Segment ( WE31)
Create Idoc Type ( WE30 )
Create Message Type ( WE81 )
Assign Idoc Type to Message Type ( WE82 )
Creating a Segment
Go to transaction code WE31
Enter the name for your segment type and click on the Create icon
Type the short text
Enter the variable names and data elements
Save it and go back
Go to Edit -> Set Release
Follow steps to create more number of segments
Create IDOC Type
Go to transaction code WE30
Enter the Object Name, select Basic type and click Create icon
Select the create new option and enter a description for your basic IDOC type and press enter
Select the IDOC Name and click Create icon
The system prompts us to enter a segment type and its attributes
Choose the appropriate values and press Enter
The system transfers the name of the segment type to the IDOC editor.
Follow these steps to add more number of segments to Parent or as Parent-child relation
Save it and go back
Go to Edit -> Set release
Create Message Type
Go to transaction code WE81
Change the details from Display mode to Change mode
After selection, the system will give this message “The table is cross-client (see Help for further info)”. Press Enter
Click New Entries to create new Message Type
Fill details
Save it and go back
Assign Message Type to IDoc Type
Go to transaction code WE82
Change the details from Display mode to Change mode
After selection, the system will give this message “The table is cross-client (see Help for further info)”. Press Enter.
Click New Entries to create new Message Type.
Fill details
Save it and go back
Check these out..
Re: How to create IDOC
Check below link. It will give the step by step procedure for IDOC creation.
http://www.supinfo-projects.com/cn/2005/idocs_en/2/
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
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.allsaplinks.com/idoc_sample.html
http://www.sapgenie.com/sapgenie/docs/ale_scenario_development_procedure.docs
go trough these links.
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
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.allsaplinks.com/idoc_sample.html
http://http://help.sap.com/saphelp_erp2004/helpdata/en/dc/6b835943d711d1893e0000e8323c4f/content.htm
An IDoc is simply a data container that is used to exchange information between any two processes that can understand the syntax and semantics of the data...
1.IDOCs are stored in the database. In the SAP system, IDOCs are stored in database tables.
2.IDOCs are independent of the sending and receiving systems.
3.IDOCs are independent of the direction of data exchange.
The two available process for IDOCs are
Outbound Process
Inbound Process
AND There are basically two types of IDOCs.
Basic IDOCs
Basic IDOC type defines the structure and format of the business document that is to be exchanged between two systems.
Extended IDOCs
Extending the functionality by adding more segments to existing Basic IDOCs.
To Create Idoc we need to follow these steps:
Create Segment ( WE31)
Create Idoc Type ( WE30)
Create Message Type ( WE81)
Assign Idoc Type to Message Type ( WE82)
imp links
http://www.allsaplinks.com/idoc_sample.html
http://www.sapgenie.com/sapedi/idoc_abap.htm
www.sappoint.com
--here u can find the ppts and basic seetings for ALE
http://sappoint.com/presentation.html
www.sapgenie.com
http://www.sapgenie.com/ale/index.htm
WE30 - you can create a IDOC type.
An IDOC with data, will have to be triggered by the application that is trying to send out the data.
Try this..Hope this will help.
SAP ALE & IDOC<<<<
Steps to configuration(Basis) >>
1. Create Logical System (LS) for each applicable ALE-enabled client
2. Link client to Logical System on the respective servers
3. Create background user, to be used by ALE(with authorizaton for ALE postings)
4. Create RFC Destinations(SM59)
5. Ports in Idoc processing(WE21)
6. Generate partner profiles for sending system
The functional configuration(Tcode: SALE)
• Create a Customer Distribution Model (CDM);
• Add appropriate message types and filters to the CDM;
• Generate outbound partner profiles;
• Distribute the CDM to the receiving systems; and
• Generate inbound partner profiles on each of the clients.
Steps to customize a new IDoc >>>
1. Define IDoc Segment (WE31)
2. Convert Segments into an IDoc type (WE30)
3. Create a Message Type (WE81)
4. Create valid Combination of Message & IDoc type(WE82)
5. Define Processing Code(WE41 for OUT / WE42 for IN)
6. Define Partner Profile(WE20)
Important Transaction Codes:
SALE - IMG ALE Configuration root
WE20 - Manually maintain partner profiles
BD64 - Maintain customer distribution model
BD71 - Distribute customer distribution model
SM59 - Create RFC Destinations
BDM5 - Consistency check (Transaction scenarios)
BD82 - Generate Partner Profiles
BD61 - Activate Change Pointers - Globally
BD50 - Activate Change Pointer for Msg Type
BD52 - Activate change pointer per change.doc object
BD59 - Allocation object type -> IDOC type
BD56 - Maintain IDOC Segment Filters
BD53 - Reduction of Message Types
BD21 - Select Change Pointer
BD87 - Status Monitor for ALE Messages
BDM5 - Consistency check (Transaction scenarios)
BD62 - Define rules
BD79 - Maintain rules
BD55 - Defining settings for IDoc conversion
WEDI - ALE IDoc Administration
WE21 - Ports in Idoc processing
WE60 - IDoc documentation
SARA - IDoc archiving (Object type IDOC)
WE47 - IDoc status maintenance
WE07 - IDoc statistics
BALE - ALE Distribution Administration
WE05 - IDoc overview
BD87 - Inbound IDoc reprocessing
BD88 - Outbound IDoc reprocessing
BDM2 - IDoc Trace
BDM7 - IDoc Audit Analysis
BD21 - Create IDocs from change pointers
SM58 - Schedule RFC Failures
Basic config for Distributed data:
BD64: Maintain a Distributed Model
BD82: Generate Partner Profile
BD64: Distribute the distribution Model
Programs
RBDMIDOC – Creating IDoc Type from Change Pointers
RSEOUT00 – Process all selected IDocs (EDI)
RBDAPP01 - Inbound Processing of IDocs Ready for Transfer
RSARFCEX - Execute Calls Not Yet Executed
RBDMOIND - Status Conversion with Successful tRFC Execution
RBDMANIN - Start error handling for non-posted IDocs
RBDSTATE - Send Audit Confirmations
FOr testing you can use WE19.
BAPI
BAPI Programming guide: -
http://help.sap.com/saphelp_nw04/helpdata/en/e0/9eb2370f9cbe68e10000009b38f8cf/frameset.htm
BAPI user guide: -
http://help.sap.com/saphelp_46c/helpdata/en/7e/5e115e4a1611d1894c0000e829fbbd/frameset.htm
BAPI STEP BY STEP PROCEDURE: -
http://www.sap-img.com/abap/bapi-step-by-step-guidance.htm
Example:-
http://www.erpgenie.com/abap/bapi/example.htm
PDF download: -
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/200dd1cc-589e-2910-98a9-bb2c48b78dfa
list of all bapis
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..
http://www.sap-img.com/bapi.htm
http://www.sap-img.com/abap/bapi-conventions.htm
http://www.planetsap.com/Bapi_main_page.htm
http://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#
BADI
Check these links on BADI
http://www.esnips.com/doc/e06e4171-29df-462f-b857-54fac19a9d8e/ppt-on-badis.ppt
http://www.esnips.com/doc/10016c34-55a7-4b13-8f5f-bf720422d265/BADIs.pdf
http://www.esnips.com/doc/43a58f51-5d92-4213-913a-de05e9faac0d/Business-Addin.doc
http://www.esnips.com/doc/1e10392e-64d8-4181-b2a5-5f04d8f87839/badi.doc
http://www.esnips.com/doc/3b7bbc09-c095-45a0-9e89-91f2f86ee8e9/BADI-Introduction.ppt
Check this link for advantage of BADIs over User exits
http://www.sap-img.com/abap/difference-between-badi-and-user-exits.htm
Reward points if useful.
Regards,
Sushama