Data Migration Methodology

LSMW

This is a facility provided by SAP that enables migrated data to be first cleansed in spreadsheets (or access depending on the data volumes), and subsequently loaded into SAP via predetermined field mapping.  The facility also caters for ‘data transformation’ where field values can be created from simple predefined logic.  It is the preferred tool for all data migration into SAP.  The main benefits are:  

A highly flexible tool provided and supported by SAP.

Independence from SAP releases, platforms and the kind of data to be migrated. 

Independence from SAP releases, platforms and the kind of data to be migrated.

A step by step guide through the data migration process.

Generates ABAP code once data transfer has been configured.

It allows additional ABAP coding for complex data loads.

It allows reusability of data mapping and conversion rules.

LSMW Process Flow:

The LSMW process flow is made up of the following steps:

Read data (legacy data in spreadsheet tables and/or sequential files) from a file on a local PC or file server. 

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

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

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Data Migration Strategy (Customer First)

Data Migration_Methodology_for_SAP_V01a

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