Active Directory types and login method
When On-premises is configured as the Active Directory Type, to log in to Token Vault, on the Login page, you must enter your Windows User name in DOMAIN\USERNAME format and Password, and then click Log in.
When Microsoft Entra ID & On-premises is configured as the Active Directory Type, a new Sign-in with Microsoft button is available on the Token Vault Login page. To log in to Token Vault with a Microsoft Entra ID user, you must click this button. Then the browser will redirect you to the login page for the Microsoft Entra admin center where you can complete the login process. After a successful login, the browser will direct you back to Token Vault displaying either the Manage authorization providers page (if the user is an Token Vault administrator) or the Available authorization providers page (otherwise). If you were already logged in to Microsoft Entra admin center in a different browser tab, and you click the Sign-in with Microsoft button, it is possible that no user interaction is needed for login.
To log in to Token Vault with an on-premises Active Directory user, you must enter your Windows User name in DOMAIN\USERNAME format and their Password, and then click Log in.
When Microsoft Entra ID is configured as the Active Directory Type, Token Vault Login page does not appear when you open the Token Vault URL in a browser. The same will happen as if you would have clicked the Sign-in with Microsoft button on the Token Vault Login page at the Microsoft Entra ID & On-premises setting but automatically.