When you install and configure Azure AD Connect with Express Settings, the following configuration is performed:
- All user objects, groups, Windows 10-based computer objects, contacts, and InetOrgPerson objects in the Active Directory forest the Azure AD Connect installation belongs to are configured to be synchronized to Azure AD.
- All user objects and InetOrgPerson objects have hashes of their password hashes synchronized to Azure AD.
- Azure AD Connect's Automatic Upgrade feature is enabled.
Do not use Express Settings in the following situations:
- Your organization uses multiple Active Directory forests
- Your organization has over 100,000 objects, including groups and computer objects