Dear Michael,

For the scenario you mentioned in your post you will need the SAP NetWeaver Single Sign-On 2.0 product license. The following article lists the details of the new features and changes in SAP NetWeaver Single Sign-On 2.0 that you can benefit by implementing the product for your company:

What's new in SAP NetWeaver Single Sign-On 2.0

I hope this will help you to plan better your implementation!

Kind regards,

Donka Dimitrova