topic Re: LSMW : BAPI vs IDOC in Application Development and Automation Discussions

LSMW : BAPI vs IDOC

prabhu_s2 — Wed, 26 Sep 2007 09:30:40 GMT

hi xperts

In LSMW, given the choices between Idoc and BAPI,which processing method is good and why? And when to opt one of the methods?

thkx

Prabhu

Re: LSMW : BAPI vs IDOC

Former Member — Wed, 26 Sep 2007 09:34:19 GMT

hi prabhu,

FOR BAPI/IDOC METHOD, WE NEED TO MAINTAIN IDOC INBOUND PROCESSING EXPLICITLY. IN THE INITIAL TRANSACTION OF LSMW, GO TO SETTINGS AND CLICK IDOC INBOUND PROCESSING. WE NEED TO PERFORM THE FOLLOWING STEPS.

 DEFINE OR SELECT A FILE PORT FOR TRANSPORTING THE FILE. OPTIONALLY, YOU CAN ALSO CREATE A TRFC PORT.

 THE PARTNER TYPE HAS TO BE DEFINED OR SELECTED.

 THE PARTNER NUMBER HAS TO BE DEFINED OR SELECTED.

 IDOC INBOUND PROCESSING MUST BE ACTIVATED AND THE WORKFLOW CUSTOMIZING MUST BE CHECKED. BOTH OF THESE TASKS ARE PERFORMED ONCE IN EACH SYSTEM.

IN THE CASE OF BAPI/ IDOC,

 STARTING IDOC GENERATION

 STARTING IDOC PROCESSING

 CREATING AN IDOC OVERVIEW

 STARTING IDOC POSTPROCESSING

STARTING IDOC GENERATION FIRST, THE FILE WITH THE CONVERTED DATA IS READ. THE PACKETS OF INFORMATION IN THIS FILE ARE THEN SAVED TO THE SAP DATABASE IN IDOC FORMAT, BUT NOT TO THE DATABASE OF THE CORRESPONDING APPLICATION. THE SYSTEM ASSIGNS A NUMBER TO EACH IDOC. THE FILE WITH THE CONVERTED DATA IS THEN DELETED.

STARTING IDOC PROCESSING THE IDOCS CREATED IN THE FIRST STEP ARE SENT TO THE ASSOCIATED APPLICATION PROGRAM. THIS APPLICATION PROGRAM CHECKS THE DATA AND UPDATES IT IN THE APPLICATION DATABASE, IF NECESSARY.

Which processing method is good depends upon our requirements...

Please reward if helpful.

Re: LSMW : BAPI vs IDOC

Former Member — Wed, 26 Sep 2007 09:36:09 GMT

IDOC’s

Advantages: Fast to load, easy processing, low programming for standard IDOC’s

Disadvantages: Good knowledge of IDOC processing required, time consuming if changes have to be made to a created IDOC

BAPI’s

Advantages: Fast to load, easy processing, logical interface for functional/end user based on the business processes involved.

Disadvantages: Not always complete with all input fields of a transaction

BOTH METHODS ARE GOOD

REWARD IF USEFULL

Re: LSMW : BAPI vs IDOC

Former Member — Wed, 26 Sep 2007 09:36:17 GMT

See the links

http://esnips.com/doc/1cd73c19-4263-42a4-9d6f-ac5487b0ebcb/LSMW-with-Idocs.ppt

http://esnips.com/doc/ef04c89f-f3a2-473c-beee-6db5bb3dbb0e/LSMW-with-BAPI.ppt

Step-by-Step Guide for using BAPI in LSMW

Note! The screen prints in this article are from ECC 5.0. They may differ slightly in other versions.

Introduction:

This document details the usage of BAPI in LSMW. We have used the example of migration of the purchase order data into SAP.

Pre-requisites:

It is assumed that the reader of this article has the minimum knowledge required on the Business Object, BAPI, Message Types and IDoc Types.

Step-by-Step Procedure:

Details of the BAPI used in this scenario:

Business Object: BUS2012

Method: CreateFromData

Details of Message Type and Basic IDoc Type:

Message Type: PORDCR

Basic IDoc Type: PORDCR02

Let’s have a look at the BAPI first, before proceeding to the LSMW:

1. Go to Transaction BAPI

2. Click on Search Button

3. Enter the value “BUS2012” and select “Obj.type(Technical Object Name”

4. Press ENTER

5. Following screen appears:

6. On the left side of the screen, Expand the “PurchaseOrder”.

7. Select “PurchaseOrder” and double-click on the same for details.

Building LSMW using BAPI:

1. Go to Transaction LSMW.

2. Enter the Project, Subproject and Object information and click on CREATE.

3. Enter the descriptions for Project, Subproject and Object.

4. Now select Settings à IDoc Inbound Processing

5. “IDoc Inbound Processing” screen appears. Enter the required details as shown below:

6. Click on “Activate IDoc Inbound Processing”.

7. Click on “Yes” when prompted for “Activate IDoc Inbound?”

8. Hit on “Back” to return to the main screen.

9. Click on Continue (F8). Following Screen appears:

10. Select the Step 1 “Maintain Object Attributes” and select “Execute”.

11. Select the radio button “Business Object Method” and enter the following details:

Business Object: BUS2012

Method: CreateFromData

Hit ENTER

12. Save and click on BACK button. Following information message is displayed.

13. Now select step 2 “Maintain Source Structures” and click “Execute”.

14. In this step, we need to maintain the source structure. In our example, lets consider the example of a file with 2 structures Head and Item data as shown below:

Click on Create and name the source structure as HEADERDATA. Now select HEADERDATA and click on “Create” again to create the child structure. Following popup appears:

Select “Lower Level” and click on Continue. Enter the Item data structure name.

Click Save and hit BACK button to go to the main screen.

15. Select step 3 “Maintain Source Fields” and hit execute.

16. Enter the fields as shown below:

17. Click SAVE and return to main screen.

18. Select step 4 “Maintain Structure Relations” and click Execute.

Select E1PORDCR and click on CREATE RelationShip. Following screen appears:

Select HEADERDATA and hit ENTER

Similarly do the same for the structure E1BPEKKOA, E1BPEKPOC and E1BPPEKET.

Click Save and return to main screen.

19. Select the step “Maintain Field Mapping and Conversion Rules” and click on execute. Maintain the Field Mapping as seen below:

20. Select step 7 “Maintain Source Files” and provide the link for the test file created. (Create a test file with the same structure as defined earlier).

Save and return to main screen.

21. Select the step “Assign Files” and click on Execute.

Assign the file provided to the source structure. Here the same file is provided for both the structures.

Save and return to the main screen.

22. Select the step “Read Data” and click on Execute.

Click on Execute.

Return to the main screen.

23. Select the step “Display read data” and click on execute.

Click on the structure name to get the field level values.

24. Return to main screen and now select “Convert Data”.

25. Return to the main screen and select “Display Converted data”.

26. Return to main screen and select “Start IDoc generation”.

27. Now select the step “Start IDoc Processing” on the main screen.

28. Return to main screen and click on “Create IDoc overview”. Here the data record and status records of the IDoc could be viewed

It is given in screen shot.

http://www.saptechnical.com

Regards,

Padmam.

Re: LSMW : BAPI vs IDOC

former_member404244 — Wed, 26 Sep 2007 09:40:38 GMT

hi,

check the links..Also it depends upon requirement,which method is good to go either idco or bapi.....

LSMW: Refer to the links below, can get useful info (Screen Shots for various different methods of LSMW)

Step-By-Step Guide for LSMW using ALE/IDOC Method (Screen Shots)

http://www.saptechnical.com/Tutorials/LSMW/IDocMethod/IDocMethod1.htm

Using Bapi in LSMW (Screen Shots)

http://www.saptechnical.com/Tutorials/LSMW/BAPIinLSMW/BL1.htm

Uploading Material Master data using BAPI method in LSMW (Screen Shots)

http://www.saptechnical.com/Tutorials/LSMW/MMBAPI/Page1.htm

Step-by-Step Guide for using LSMW to Update Customer Master Records(Screen Shots)

http://www.saptechnical.com/Tutorials/LSMW/Recording/Recording.htm

Uploading Material master data using recording method of LSMW(Screen Shots)

http://www.saptechnical.com/Tutorials/LSMW/MMRecording/Page1.htm

Step-by-Step Guide for using LSMW to Update Customer Master Records(Screen Shots) Batch Input method

Uploading Material master data using Direct input method

http://www.saptechnical.com/Tutorials/LSMW/MMDIM/page1.htm

Steps to copy LSMW from one client to another

http://www.saptechnical.com/Tutorials/LSMW/CopyLSMW/CL.htm

Modifying BAPI to fit custom requirements in LSMW

http://www.saptechnical.com/Tutorials/LSMW/BAPIModify/Main.htm

Using Routines and exception handling in LSMW

http://www.saptechnical.com/Tutorials/LSMW/Routines/Page1.htm

Regards,

nagaraj

Re: LSMW : BAPI vs IDOC

prabhu_s2 — Wed, 26 Sep 2007 10:42:24 GMT

guys thanks for ur response also i appreciate ur involvement. If u check the post is all abt comparing bapi and idoc in lsmw and not howto? kinldy send only relevant links to it and not a reply on lsmw developemtns. this is just a suggestion to make the thread readable to anyone who wish to know the diff in the future.

Re: LSMW : BAPI vs IDOC

former_member404244 — Wed, 26 Sep 2007 10:47:33 GMT

hI,

I hope this will solve ur query..check the below link

Regards,

Nagaraj