Single sign-on is not supported when running a Stored Process from a URL
Display Portlet in the Information Delivery Portal.  There is no
mechanism to pass the userid and password for the Stored Process to run
via single sign-on when using the URL.

Also, if you are attempting to use a URL portlet for a Stored Process,
there may be a large performance impact since the Stored Process will
run each time the page is visited.

The recommended way to run a Stored Process is to run it as needed.  For
example, run the Stored Process via search, the Stored Process
navigator, or as a content item on a collection/bookmarks portlet.

Operating System and Release Information