siebel integration with webcenter content and single sign on

 Dear All

We have integrated siebel application with Webcenter Content. When I go to attachments tab I see the login screen displayed for the WC Content user.

When I gone through the documents provided by the WCC and Siebel it says that we must have single sign on to avoid this login screen.

We have Siebel Single Sign On setup and we are planning to WCC single sign on.

Please can you let me know that do we have any specific document on that and do we need to perform any specific steps while making WCC single sign on specific to siebel.