...
In the EmpowerID Web application, navigate to Identity Administration > People and search for the person to whom you want to set the preferred language.
Click the record for the person to select it, then click the Manage Person Wizard action link.
In the workflow, select Edit Person Attributes as the action to perform and click Next.
This opens the form for the selected action.Under About Person, change the Preferred Language field to the desired language.
Save your changes.
Users can set their own language preferences by editing their personal profile information.