Oracle Forms is not a true single sign-on partner application. Therefore, historically for Oracle Forms applications that are authenticated using SSO were not be able to determine if a sign-off request occurred. With the addition of this System Single-Sign-Off event, this is no longer the case. The sign-off action can occur because of the user explicitly logging out of SSO or if the SSO session expires. It may be desirable to have the Oracle Forms application know about such a sign-off condition so it can react to it. Application developers can then decide how to react to this event, if at all.

Following are some limitations:

• The event may not appear to be raised immediately because control may be on server (e.g. due to a long running database query) when logout occurred.
• The event may not be sent to the server until the next scheduled exchange (e.g. Heartbeat) or user interaction.