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LSMW

HI,

WHAT IS LSMW , CAN ANY ONE EXPLAIN ABOUT LSMW AND EXPLAIN HOW ITS INTEGRATE WITH FUNCTIONAL MODULE . WHAT ARE THE STEP BY STEP PROCEDURE IS USED TO USE THE LSMW

WITH REGARDS,

ELANCHI

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3 Answers

  • Posted on Nov 07, 2008 at 10:50 AM

    Dear,

    LSMW is used for migrating data from a legacy system to SAP system, or from one SAP system to another.

    T code is also same LSMW.

    The LSMW comprises the following main steps:

    Read data (legacy data in spreadsheet tables and/or sequential files).

    Convert data (from the source into the target format).

    Import data (to the database used by the R/3 application.

    But, before these steps, you need to perform following steps :

    Define source structure : structure of data in the source file.

    Define target structure : structure of SAP that receives data.

    Field mapping: Mapping between the source and target structure with conversions, if any.

    Specify file: location of the source file

    For step please refer this link,

    [Step for LSMW|http://www.sap-img.com/general/lsmw-steps-for-data-migration.htm]

    Hope it will help you. Please assign the poins and closed the thread.

    Regards,

    R.Brahmankar

    Edited by: R Brahmankar on Nov 7, 2008 4:23 PM

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  • author's profile photo Former Member
    Former Member
    Posted on Nov 07, 2008 at 11:00 AM

    Hi,

    LSMW means Legacy System Migration Workbench which is transaction code itself too.

    Pls. find more details about LSMW as below:

    Legacy System Migration Workbench

    Purpose

    The Legacy System Migration Workbench (LSMW) is a tool that supports data migration from legacy systems (non-SAP systems) to SAP systems. It is a cross-platform component of the SAP system.

    Implementation Considerations

    Do not use the LSMW before the SAP system has been installed and application customizing has been completed.

    Integration

    The LSMW is a cross-application component (CA) of the SAP system.

    The tool has interfaces with the Data Transfer Center and with batch input and direct input processing as well as standard interfaces BAPI and IDoc.

    Features

    Instead of individual tables or field contents, the tool migrates user-defined datasets (known as objects), which are combined according to business criteria. In addition to using standard import techniques, you can also generate user-specific objects. For more details, see Recordings.

    The LSMW comprises the following main functions:

    ..

    1. Read data (legacy data in spreadsheet tables and/or sequential files).

    You can use any combination of PC and server files.

    2. Convert data (from the source into the target format).

    3. Import data (to the database used by the SAP application).

    The following additional functions are available:

    · Import techniques: Apart from standard batch/direct input and recordings, BAPI and IDocs are available as additional import methods.

    · Global functions: You can call certain functions from an ABAP code location of your choice, and so influence the procedure used to migrate your data.

    · Editor function: The source code for a target field can be checked. You can insert source fields, global variables, and global functions as well as use the Pretty Printer.

    · Action log: All the actions associated with an object are stored in an action log.

    · The field assignments for all parts of a project can be downloaded/uploaded in one step.

    · Unassigned source fields: Neglected data can be displayed.

    · Source fields: You can create source fields by copying them from other sources.

    · Processing times: The ABAP code can be added to at different times.

    · Authorizations: The LSM Workbench is independent from the client. Access to the LSMW is controlled by authorizations. The assignment of these authorizations is basically independent from the client. The Display, Execute, Change, and Administration functions can be controlled by assigning authorizations.

    · Documentation: User-specific documentation can be stored at different levels and formatted into an overall documentation by pressing the appropriate button.

    Constraints

    The LSMW supports a one-time transfer of data (initial data load) and also offers a restricted support of permanent interfaces. Thus, a periodic transfer of data is possible. The LSMW, however, does not include any functions for monitoring of permanent interfaces.

    The tool does not support any data export interfaces (outbound interfaces).

    For more details pls go to the following link :

    http://help.sap.com/erp2005_ehp_03/helpdata/EN/4d/455035082e2271e10000009b38f889/frameset.htm

    Hope this helps.

    Regards,

    Tejas

    Edited by: Tejas Pujara on Nov 7, 2008 12:00 PM

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  • author's profile photo Former Member
    Former Member
    Posted on Nov 07, 2008 at 11:50 AM

    Hi,

    Pls refer below

    www.erpgenie.com/saptech/lsmw.htm

    For Material Master: Use Recording menthod

    BOM create : use std Object method

    Production Version :Use Record method (Mass maintenance)

    Try simple one for the first time.

    Regards,

    Sankaran

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