A Unicode SAP system encodes data it reads or writes through RFC in UTF-16. The PowerCenter Integration Service reads UTF-16 data from a Unicode SAP system and writes UTF-16 data to a Unicode SAP system if you select UTF-8 as the application connection code page.
The PowerCenter Integration Service processes SAP Unicode data in one session or multiple sessions, depending on the operating system of the PowerCenter Integration Service. If SAP provides Unicode libraries for the operating system of the PowerCenter Integration Service, you can process Unicode data in a single session. If SAP does not provide Unicode libraries for the operating system of the PowerCenter Integration Service, you need to process Unicode data with multiple sessions.
The SAP BW Service must run on an operating system that uses a Unicode SAP RFC library.