PPM supports a multilingual user interface (MLU) to facilitate the needs of global enterprises. PPM Web services is also enhanced to support MLU so that users can specify their preferred languages when invoking a Web service operation.

Users can use their preferred language even if that language is different from the specified system language or session language. When calling PPM through Web services, you can specify the preferred language in the Simple Object Access Protocol (SOAP) header.

In the PPM standard interface, a user can choose a session language during log-in and a Web service caller can specify a preferred language in the SOAP header that will override the session language that the user specified.