Starting with Strategy Office 9.2.x, a complete SSO implimentation is possible via Trusted Authenticaton when interfacing with Siteminder or Tivoli; However, both Siteminder and Tivoli must be configured to use Basic Authentication Mode in order for the Trusted authentication to work.
For more information on how to set up trusted authentication for Strategy Web Services, to support Strategy Office, refer to the "Enabling Single Sign-on to Web, Mobile, and Office with third-party authentication" section in the product manual, System Administration Guide.
An enhancement request has been logged to support form-based authentication in Strategy Office.