SSO ERP

Hello

Currently I have implemented SSO with EP (Enterprise Portal) and Active Directory.

I read that you can use the EP SSO for the SAP ERP by Logon tickets. Someone could tell me how to perform this configuration or if you know any step by step guide.

Besides SSO settings I have other questions:

1. Current ERP works with local users.
When performing ERP SSO settings, is there any way or any report to relate local ERP users and active directory domain.

2.Whoever controlled access to EP and ERP?

Thanks