Portlet Preferences pages are accessible from the portal page and can be used to manipulate both Portlet and User settings.
A Portlet Preferences page is used to define settings that affect a single user. Portlet settings apply to one specific portlet object and one particular user. User settings apply to one specific user but can be used by multiple portlets and services.
If a portlet has been configured with a Portlet Preferences page, an edit icon appears in the portlet title bar.
When a user first adds the portlet to a page, it might not be obvious where to enter necessary settings. If a portlet requires configuration, always enter a link to the preferences page in the Web Service editor.