Using the International Preferences Page
After you log in to a PeopleSoft application, you can change your language preference anytime during your session on the International Preferences page. When you change your language preference, everything appears in the new language, assuming that it's translated. If you change your language of preference, the language code change isn't written to the database, but is stored in PeopleTools memory for the duration of the current session.
The language code you indicate is the language that the system uses for future pages that are displayed during the current session. This is the language of the session until you either log off or change your language preference. The tool set uses the language code to apply country-specific formats for numbers, dates, and currencies. If you change the language code during a session, your user profile language preference is not affected. The next time you log in, you'll see the language that is associated with your user ID.
Making a change means that everything you see―pages, menus, and field contents―appears in your new language preference.
Note:
Your PeopleSoft language selection is independent of your Windows language options. To change your Windows language parameters, select Start, Settings, Control Page.
See PeopleTools: Global Technology and PeopleTools: Security Administration.