Legacy System Migration Workbench

Deloitte Consulting LLP

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Contents

• LSMW Basics

• Defining Source Structures and Source Fields

• Creating Field Mapping and Rules

• Reading Files

• Transferring data to R/3 System

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LSMW Basics

• R/3 Tool Supports

• Batch Input

• Call Transaction

• Direct Input

• BAPI

• IDoc

• One time and Periodic data transfer

• Provides recording function

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LSMW Basics

• Core Functions

• Read files

• Convert data

• Call the data transfer program and import data to R/3

• Data can be read from Presentation Server or Application Server

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Procedure

• Define source structures (To read file data)

• Read data into LSMW internal format

• Apply rules and convert data into target structures

• Load the data using data transfer method

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First Screen

• Transaction : LSMW

• Organized by

Project

Sub Project

Object

• All Objects

• My Objects

• All Project Objects

• Documentation

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Important Steps

• Define Object attributes

• Object Id

• Owner

• Property

• Define Source Structures

• Define Source fields

• Define Structure relationships

• Define Field mapping and conversion rules

• Import data

• Convert data Total of 26 Steps and steps would be displayed accordingly to selected type

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Source Structures and Fields

• Flat source structure

• Source structures with header and positions

• Multiple files

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Maintaining the Source Structures

• Name of the Source structure

• Description of the source structure

• Hierarchy

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Maintaining the Source Fields

• Field Name

• Description

• Length

• Type

• Identifying field content

Table Icon for easy maintenance

Flag can be set as selection parameter for import/convert data steps

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Maintaining structure relationships

• Define structure relations between source and target structures

• If the required structures are not mapped system throws a message

• If BGR00 or BI000 exists related with header structure

• If you assign child structure to target structure its header structure details also available to target structure

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Field mappings and conversion rules

• Assign source fields to target fields

• Some fields would be filled by system. Changes to these fields might severly affects data transfer

• Extras Restore default

• Rule Types• Constants

• Transfer

• Prefix

• Suffix

• Concatenate

• Routines

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Specify Files

• From Application Server

• From Presentation Server

• Data for Multiple structures or one structure

• Delimiter

• File Structure

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Transferring data to R/3

• Import / Read data

• Display read data

• Convert data

• Display convert data

• Run data transfer program

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Extras

• No to PC files in Periodic transfer

• Multiple structures not allowed in Recording

• Transporting LSMW

• Numbering on/off

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Copyright © 2008 Deloitte Development LLC. All rights reserved.

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