NAV 2013 R2 webservice with Azure ACS credentials

tjensen

I have an ASP.NET site calling webservices in NAV 2013 R2. The NAV users login with Windows Azure Active Directory credentials so that single sign on is supported across NAV, Office 365, SharePoint etc.

The ASP.Net site is set up to support this as well and it seems to work just fine.

What I want to accomplish, is to pass those credentials when calling webservices in NAV. I'm currently able to make webservice calls by enabling the webservice key per user, but I would like to use the Windows Azure, or AccessControlService, credentials to get a true single sign on experience and to make sure that NAV is called with a specific authenticated user.

Is this possible to do, or have Microsoft changed it so that only webservice keys are allowed?