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4. The login screen will require the user to enter login credentials and 2FA credential. The user can use any 2FA that SP supports to login in. The single factor will be AD or SurePassId Active Directory (AD) or the SurePass directory (if you want to keep AD out of it) o you are running in a cloud environment where AD is not available. You can automatically sync AD with the SurePass directory with the Directoy Sync Agent.
5. Once authenticated SurePassIdP signs the request and POSTS back to SharePoint 2010/2013 and the home page is displayed.
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