When you run sessions in stream mode, PowerExchange for SAP NetWeaver uses the RFC protocol to run the session.
In stream mode, you can use an SAP R/3 application connection.
If you use an SAP R/3 application connection, the PowerCenter Integration Service extracts data in stream mode by using the RFC protocol. The connection information for RFC is stored in the
sapnwrfc.ini
file. You must also have authorizations on the SAP system to read SAP tables and to run stream mode sessions. RFC stream mode sessions use foreground processing.