Data Interfaces

Sequential file SAP data structure
R/3 System Batch input
session
© SAP AG
Data Transfer
External system Prices/
conditions
Transaction 1
Screen 1 Screen 2
SAP format
SAP
condition records
Customer-specific
Customer-specific
conversion conversion program
program
SAP SAP data data transfer transfer
program
program
Process Process session session
Transaction 2
. . . . . .
Screen 1 Screen 2
SAP provides transfer programs (batch input) for transferring data from legacy systems.
Data to be transferred to the R/3 System must be placed in a sequential file and the records must have
SAP structure and format. The data is transferred from the legacy system to the sequential file by a
subroutine created by the customer. Using an SAP program, you can generate data declarations in
different programming languages for SAP tables and make use of these for your conversion program.
The SAP transfer program (batch input) reads the data from the sequential file, retrieves it for transfer
to the R/3 System and uses it to create a batch input session.
When the session is processed, the data is transferred to the R/3 System. Here, a user dialog is
simulated so that the same checks are performed as in a dialog.
There are data transfer programs for
- Customer master records
- Vendor master records
- Material master records
- Condition records
- Open orders