Sharepoint

If connecting to Sharepoint using Single Sign-on (SSO)

Use SSO=true Auth Cookie=”” SSO Domain=”” - SSODomain may be required to be set if the domain configured on the SSO domain is different than the domain of the User.

Check SharePoint user configuration as well too:

User name needs to match the format of username@domain.onmicrosoft.com. After logging in to http://yourdomain.sharepoint.com/TeamSite, the "keep me signed in" setting must be checked in order for the connection to be established.