Authentication Methods and Directory Synchronization
Authentication methods
Azure Active Directory
AD FS 2016
Auth0
Okta
Microsoft Identity Platform v2.0
Integrated Windows or IIS Basic (Active Directory)
Applicative (WorkflowGen)
Forms
Custom (SSO: single sign-on)
Directory synchronization
Azure Active Directory
Active Directory (supports all releases of Windows Server 2012)
LDAP-compatible directory
Text files