Hello @Taylor, David
You can use Azure MFA with your dev ADFS farm only when:
- You have your users synced to Azure AD tenant and they have done Proofup for Azure MFA by visiting https://account.activedirectory.windowsazure.com/Proofup.aspx or via the shortcut https://aka.ms/mfasetup.
- Your ADFS dev environment must be federated with Azure AD, in order to use Azure MFA.
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