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Migrating Customer data along with relationships (CRM) using LSMW
By Srinivas, Infosys
This document provides a simple and user-friendly
step-by-step approach for working with LSMW. The document mostly covers the
practical usage of LSMW with respect to Batch input Recording Method.
This document may be used to gain an insight of LSMW process
in SAP CRM environment and may be used as a guide to help the consultants during
the initial loading of master data into SAP database tables.
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. 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.
The tool migrates user-defined datasets (known as objects),
which are combined according to business criteria instead of individual tables
or field contents. In addition to using standard import techniques, the
user-specific objects can be generated.
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).
Fig : LSMW-Process flow diagram
Creation of Project Hierarchy
Use the Transaction Code LSMW to go to the
initial screen. Create a project, corresponding subproject and object using Edit
-> Create entry on menu bar. This is a hierarchy maintained in LSMW for
all the data transfer done.
Fig-01: LSMW - create project hierarchy
Create a project, subproject and an object and click on continue. The
following screen is displayed with the Project hierarchy details:
Fig-02: LSMW- Initial screen
the project Hierarchy is being created, an enumeration of steps for data
migration is displayed as shown in Fig-03 below.
can be changed depending on the requirement of the user. For this “User
Menu” tab in the tool bar needs to be clicked and all the necessary steps
required for data transfer need to be selected.
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