Check the Azure Sign In Logs. Any conditional access polices, security defaults enabled or per user MFA set?
We have Federated Domain authentication with ADFS and Azure AD. But a large number of users were already being prompted by cloud MFA instead of on-prem authentication. Please note that we have very few users and test accounts in our staged rollout group(less than 10).
What is prompting the users to go to managed authentication ?
@Gupta, Lokesh Just checking in to see if below information was helpful or not. If you have any further updates on this issue, please feel free to post back.
If you need any further assistance on this issue, we can connect offline if required to troubleshoot this further for you.