A cloud-based identity and access management service for securing user authentication and resource access
Hi @Sean Neff ,the prefix format remains the same as it was with Azure AD. You can still use the format AZUREAD\******@email.com for logging in.
If you have any issues, make sure that the user principal name (UPN) is correctly configured and that the domain has been verified. The UPN is used by Microsoft Entra ID to allow users to sign in, and it should be in the format ******@domain.com
More information: https://learn.microsoft.com/en-us/entra/identity/hybrid/connect/plan-connect-userprincipalname
Please let me know if you have any questions and I can help you further.
If this answer helps you please mark "Accept Answer" so other users can reference it.
Thank you,
James