LSMW and BDC

[Former Member]

Hi all,

I want to know under what circumstances we can use LSMW and BDC for Conversion or Data Upload.

Reji

[Former Member]

Hai Prince

BDC SESSION

CALL TRANSACTION

CALL DIALOG

What is BDC or batch input

The Batch Input is a SAP technic that allows automating the input in transactions. It lies on a BDC (Batch Data Commands) scenario.

BDC functions:

· BDC_OPEN_GROUP : Opens a session group

· BDC_CLOSE_GROUP : Closes a session

· BDC_INSERT : Insert a BDC scenario in the session

· The ABAP statement "CALL TRANSACTION" is also called to run directly a transaction from its BDC table.

It runs the program RSBDCSUB in order to launch automatically the session. The session management is done through the transaction code SM35.

The object itself is maintanable through the transaction SE24.

BDC methods:

Method

Description

Parameters

OPEN_SESSION

Opens a session

SUBRC (Return Code – 0 OK)

SESSIONNAME (Session to be created)

CLOSE_SESSION

Closes a session

None

RESET_BDCDATA

Resets the BDC Internal Table...

None. Normally, for internal purpose…

BDC_DYNPRO

Handles a new screen

PROGNAME (Name of the program)

DYNPRONR (Screen Number)

BDC_FIELD

Puts a value on the screen

FIELDNAME (Name of the field)

FIELDVALUE (Value to be passed)

CONSTRUCTOR

Constructor - Initializes NO_DATA

NODATA (No data character). The constructor is called automatically when the object is created.

RUN_SESSION

Launches a session with RSBDCBTC

None

CALL_TRANSACTION

Calls a transaction with the current BDC Data

MODE (Display Mode)

UPDATE (Update Mode)

TCODE (Transaction to be called)

BDC_INSERT

Inserts the BDC scenario in the session

TCODE (Transaction to be called)

BDC techniques used in programs:

1) Building a BDC table and calling a transaction,

2) Building a session and a set of BDC scenarios and keeping the session available in SM35,

3) Building a session and lauching the transaction right after closing the session.

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BDC using Call Transaction

BDC using Call transaction involves calling an SAP transaction in back ground from within the ABAP

program. The process involves building an Internal BDC table containing the screen information needed to

execute the required transaction and then passing this to the Call transaction command (See code example).

The full procedure for creating a BDC program is as follows:

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What is the difference between batch input and call transaction in BDC?

Session method.

1) synchronous processing.

2) can tranfer large amount of data.

3) processing is slower.

4) error log is created

5) data is not updated until session is processed.

Call transaction.

1) asynchronous processing

2) can transfer small amount of data

3) processing is faster.

4) errors need to be handled explicitly

5) data is updated automatically

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BATINPUT/DIRECT INPUT

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A: Batch-inputs can not be used to fill the "delivery due list" screen because it is not a dynpro. This is a standard SAP report. A SAP report (check with "System -> Status") may be called using SUBMIT sentence with the appropriate options . It is preferred to call a report than create a Batch-input program.

GO THROUGH THIS LINK

http://www.guidancetech.com/people/holland/sap/abap/zzsni001.htm

The LSM Workbench is an SAP R/3 based tool that supports the one-time or periodic transfer of data from non-SAP systems ("legacy systems") to SAP systems.

The LSM Workbench helps you to organize your data migration project and guides you through the process by using a clear sequence of steps.

The most common conversion rules are predefined. Reusable conversion rules assure consistent data conversion for different data objects.

LSMW vs DX Workbench

The LSM Workbench covers the following steps:

Read the legacy data from one or several files (e.g. spreadsheet tables, sequential files).

Convert the data from source format to target format.

Import the data using standard interfaces (Batch Input, Direct Input, BAPI, IDoc).

Experiences made in successful implementation projects have shown that using the LSM Workbench significantly contributes to accelerating data migration.

SAP provides this tool along with documentation to customers and partners free of charge.

Users of the LSM Workbench receive the usual support via SAP Net - R/3 Frontend (component BC-SRV-DX-LSM).

Releases:

Version 1.7.2 of the LSM Workbench ("LSMW 1.7.2") available

Attention : LSMW 1.7.2 requires an SAP R/3 system with SAP R/3 4.0 or SAP R/3 4.5.

Version 1.8.0 of the LSM Workbench (1.21mb) ("LSMW 1.8.0") available

Attention : LSMW 1.8.0 requires an SAP R/3 system with SAP R/3 4.6.

Version 3.0 of the LSM Workbench (1.89mb) ("LSMW 3.0") available for Web Application Server 6.10

Attention : LSMW 3.0 requires a SAP WAS 6.10. Functionality of version 1.7.2 and 3.0 are identical !

Version 4.0 of the LSM Workbench ("LSMW 4.0") integrated in Web Application Server 6.20

Attention : LSMW 4.0 is an integrated part of SAP WAS 6.20.

Thanks & regards

Sreenivasulu P

[Former Member]

BDC

BDC allows you to perform database updates in the background using standard SAP transactions.

The resultant entries will be as if the user had manually entered the data via SAP. This means

that you do not bypass any of the standard SAP consistency checks, authorisations etc.

There are two main methods of ABAP BDC, these are Call Transaction and Batch Input.

LSMW

<a href="http://www.sapgenie.com/saptech/lsmw.htm">http://www.sapgenie.com/saptech/lsmw.htm</a>

<a href="http://www.sap-img.com/sap-data-migration.htm">http://www.sap-img.com/sap-data-migration.htm</a>

regards,

Chithra

Message was edited by: Chithra Lekha P S

[Former Member]

Hi Prince,

Provide ur maild ID. I have some doc on this topic. Have a look if it could help u out.

Rgds,

Sumana.

[Former Member]

Hi Sumana, Shakuntala

Infact I am in need of sm material compairing LSMW and BDC..

I will be thankful to you if you can put it in my Inbox on itsmerashmi7@yahoo.com

Thanks in advance

[Former Member]

Hi Rashmi ,

I am sending you some documents on LSMW and BDC with the comparisons in your yahoo email id .

Regards,

Kunal.

Note: Reward points if found useful.

[Former Member]

Hi Kunal, Sumana, Shakuntala

I din receave any of document till the time

Plz send if you can

Thanks in Advance

[Former Member]

Hi Rashmi ,

I have sent the required docs on your email .

Just check it once again.

Regards,

Kunal.

[Former Member]

Hi,

I have related docs.

Send me your mail ID so that i can send it to you.

Regards,

Shakuntala.

[Former Member]

My email ID is princemathew_77@yahoo.com

Prince

[Former Member]

Hi Prince ,

I am sending you the docs on your email id .

Just check it.

Regards,

Kunal.

Note : Rewars points if found useful.

[Former Member]

HI

GOOD

AS YOU HAVE MENTIONED IN YOUR QUERY IT IS NOT THE CIRCUMSTANCES ITS THE REQUIREMENT THAT LEADS TO USE OF LSMW OR THE BDC.

IF YOU SEE LOGICALLY THE BDC AND THE LSMW BOTH WORKING FOR THE SAME REASON THE UPLOAD OF DATA BUT AS PER THE REQUIREMENTS WE BESICALLY USE THEM.

I HOPE YOU MUST HAVE SOME IDEA ABOUT LSMW AND BDC ALSO.

YOU CAN VISIT THIS SITES

WWW.SAPPOINT.COM

WWW.SPOT4U.COM

THANKS

MRUTYUN

[Former Member]

Hi Prince,

I have send you the docs.

PLS mark if helpful.

Regards,

Shakuntala

[Former Member]

Hi Prince,

I have sent u the docs.

Regards,

Sumana

[Former Member]

Hi,

Check out this link:

Hope it helps you to understand the diff between Lsmw and BDC

Regards,

Anjali