Mmc Lsmw Intro

LSMW
(Legacy System Migration Workbench)
Presented by
Thomas Michael
www.michaelmanagement.com

www.michaelmanagement.comCopyright © Michael Management Corporation - All rights reserved
What we’ll cover
• Overview
• Features & Benefits
• Availability
• Takeover Process
• Basic Interface
• Summary
• Q&A

Overview
• LSMW not part of standard R/3 system
– Separate application
– Free of charge
– Download directly from SAP’s website
• One of the most time-intensive tasks during
implementation:
– Legacy data migration
– Accounts for 20% of project cost
– Aims at reducing implementation time & cost

Overview
• Originally developed for data loads during initial
go-live only, but due to ease of use becoming a
popular tool for any kind of mass processing
• Access via transaction LSMW

Overview
• In short: it’s a mass processing tool similar to
CATT (Computer Aided Test Tool) - but much
better!
• Allows you to run almost any SAP transaction in
mass update mode, i.e.
– Post G/L documents uploaded from Excel sheet
– Change cost center for hundreds of assets
– Update vendor master records for entire company
– …or any other master data or posting transaction
you can think of!

Features & Benefits
• No coding required! Generates ABAP code
automatically in background!
• Tracks data migration history
• Interfaces with Excel
• Supports flexible conversion rules

Features & Benefits
• Supports data migration via:
– Batch input
– Direct input (direct table updates)
– BAPI (Business Application Programming Interface)
– IDOC (Intermediate Document)
• Supported by SAP via SAP Net - SAP R/3
Frontend: Component BC-SRV-DX-LSM
• Can be downloaded quickly from the SAP
Service Marketplace

LSMW Availability
• Legacy System Migration Workbench Version 4.0
– Integrated in SAP Web Application Server 6.20 and higher
– Available for SAP Web Application Server 6.10
– Available for SAP R/3 4.6
– Available for SAP R/3 3.0F
– Available for SAP R/3 3.1x

Takeover Process
Basic Procedure using Batch Import:
• Set up LSMW run (contains specifics about the
transaction to be run, input file structure, field
mapping, conversions, etc.)
• Compile input file on PC (Excel sheet)
• Read data from Excel into SAP LSMW
• LSMW converts to SAP format

Takeover Process
• Review converted data in LSMW
• Create Batch Session
• Run Batch Session / Database update

Takeover Process
LSMW

Basic Interface
Project, Subproject & Object allows grouping of related
LSMW runs, i.e.
Project = Functional Area (Fixed Assets)
Subproject = Sub-area (Master Data or Transactions)
Object = Transaction Code (AS02 – Change Asset)

Basic Interface
Easy to navigate interface…simply start at
the top and work your way down the list by
double-clicking each item
LSMW keeps track of the
last action you have taken

Summary
• LSMW is quickly becoming the tool of choice for
– Legacy data migration
– Mass changes to master records
– Mass postings of transactions
– Mass loads for configuration (i.e. load fiscal
calendar, location code table, etc.

Summary
• It’s FREE – download from SAP’s website
• Easy to use – no coding required!
• It’s SAP supported!
• Online LSMW training class available at
www.michaelmanagement.com/lsmw001.asp

Q&A
• Comments & Questions
• How to contact me:
Thomas Michael at
tmichael@michaelmanagement.com
Download this & more presentations at:
www.michaelmanagement.com

Mmc Lsmw Intro

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