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How LSMW Works

LSMW Architecture

The Legacy System Migration Workbench (LSMW) helps you to organize your data migration project and guides you through the process by using a clear sequence of steps. The most common conversion rules are predefined. Reusable conversion rules assure consistent data conversion for different data objects.

The LSMW data migration process flow covers the following main steps:

  • Reading the legacy data from one or several files (e.g. spreadsheet tables, sequential files).
  • Converting the data from source format to target format.
  • Importing the data using standard interfaces (Batch Input, Direct Input, BAPI, IDoc).

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