If the application presentation layer or application logic layer is not running on WebSphere(R) Business Integration Server Foundation or work areas have not been enabled, the application presentation layer cannot use a work area to propagate the session ID, sub-session ID (if applicable), and session context instance ID to the application logic layer. Instead, the application presentation layer must include the session ID and session context instance ID in the WSIF or EJB request.
The following diagram shows the toolkit components that are involved with supporting sessions in the application presentation layer and in the application logic layer.
The ActivitySession feature is also not available in this environment.