Data Transfer Using the Workbench 
A project is used to group business objects together for transfer.
The sub-project is used to divide a project up. Precisely one business object type is assigned to each sub-project and business object type is transferred in this sub-project.
In the run definition you specify how the data of a sub-project is to be transferred, by creating tasks and specifying the files involved.
You can use a task to specify which program is to be executed and with which attributes.
In the task Load data using BAPI, you can specify which BAPI is called, which file the data loaded into R/3 is read from and how error handling is processed.
Prerequisites
Procedure
Choose Tools ® Data Transfer Workbench.
Carry out the tasks:
Result
The data from your source system is transferred into your R/3 System.