Initial Data Transfer (SAP Library

Initial Data Transfer

Prerequisites

Before you start the initial data transfer, you should have answered the following questions:

Which business objects are to be transferred?

The objects to be transferred depend on the business applications you are using. If you are using sales and distribution processing, for example, you should transfer the material master records as well as the sales master records .

How should the business objects be transferred?

Various techniques are available to load the data into the R/3.

Process Flow

The graphic below describes the tasks involved in transferring the data:

The Data Transfer Workbench is an integrated project management for all the required steps involved in transferring data to your R/3 System.

A project consists of one or more subprojects, each subproject consists of one or more run definitions and each run definition consists of one or more tasks. These objects are displayed in a hierarchy in the project administration.

When the run is started all the tasks of the run definition are carried out in sequence when the associated programs are called.

You need to use programs or function modules for the various steps.

Once you have created a project, you can start a run. The tasks of a run definition are processed in order. The result of a run is displayed as status information in color (green, yellow or red) in the hierarchy.

The process of transferring data for each object can be divided into the steps:

Preparing the Data Transfer

In the first step you extract the existing data from a source system into a file (see Program to Create Data Extraction).

Cleanup: Clean the data in this file if necessary (see Analysing and Cleaning Legacy Data and Analysing SAP Structures).

Conversion: You have to convert your extracted and cleaned data into the structures of the transfer file . To do this you should use the SAP's Legacy System Migration Workbench (LSMW) (see Using LSM Workbench for the Conversion). You could also use a conversion program you have created yourself or one available on the market (see Creating Your Own Conversion Program.

Executing the data transfer

Creating Projects: With the Data Transfer Workbench you can create projects, sub-projects and run definitions (see Organizing Transfer in Projects).

Load into R/3: SAP provides a range of transfer programs and interfaces (BAPIs) for loading data into R/3. These require a transfer file in the correct SAP format. To load the data into the R/3 System one of the Techniques is used depending on the type of business object. If more than one of these techniques is provided for a particular object type, you should read the documentation to find out what the different uses are. For more information see Executing Data Transfer in Runs.

Check: After the data has been successfully loaded into the R/3 System, it can be checked here.

Result

You have transferred the data into the relevant R/3 application and checked it here.