When using an internal application that generates ical feed.
Some users don't have internet password.
Here the customer wants to access the iCal Feed using SSO authentication.
Means, they want if they access notes client it directly authenticate the iCal feed using SSO.
In Notes client, there are 2 options to add iCal feed.
1) A private calendar (login, password and URL are needed)
2) A public calendar (a URL is needed)
But the customer didn't want to use these options.
The customer wants to use SSO authentication for this scenario.