webservice-pi-webservice approach needed with authentication.

Hi all,

In our scenario, we need to propagate user context from a .net web service to another .net web service via PI 7.3. Please suggest some options to achieve this. (multiple users have muliple logon credentials)..this is actually 3 level check .. suppose sender service one check ,PI side one check and reciever side one check. suggesions are required for approach.

thanks,

Allamudi Loordh.