Use an inbound SAP IDoc mapping to send the transactional data from the legacy application database to the SAP system.

Data Integration

extracts the data from the legacy application data source, prepares the data in SAP IDoc format, and sends the data to the SAP system as inbound IDocs using ALE. You can use the IDoc Writer connection to write inbound SAP IDoc messages to SAP systems.

To generate the inbound mapplet to write IDocs to SAP systems, use the Prepare transformations when you import the IDoc metadata. Import the inbound mapplet to

Data Integration

and configure an inbound mapping.