Entra ID Captures Timestamp for Last Successful Sign In for User Accounts

Entra ID now captures the lastSuccessfulSignInDateTime property to record the last successful sign-in action against user accounts. The new property is available through the Graph beta endpoint. Quite a difference can exist between the last successful sign in and the last sign in, as explored in this article.

https://office365itpros.com/2023/12/08/lastsuccessfulsignindatetime/