A user reports that they cannot access the corporate portal after a password reset. The user can access other cloud apps. You verify that the user account is enabled and not locked. What should you check next?
A common reason for portal access issues, especially after a password reset or if the user has new devices, is an outdated or missing multi-factor authentication (MFA) registration. If conditional access policies require MFA for portal access, and the user's registered methods (e.g., Microsoft Authenticator, phone number) are incorrect or not configured, they will be blocked from signing in. Verifying and potentially resetting these methods in Microsoft Entra ID is a critical troubleshooting step to restore access.
Why this answer
The user can access other cloud apps, which rules out a global authentication or network issue. Since the account is enabled and not locked, the most likely cause is that the user's registered authentication methods (e.g., phone, authenticator app, or email) are missing, outdated, or not configured for the password reset flow. Microsoft Entra ID requires verified authentication methods to complete a password reset and subsequent sign-in, especially when the user is prompted for multifactor authentication or self-service password reset (SSPR) verification.
Exam trap
The trap here is that candidates often assume a password reset always works seamlessly, but the SC-900 exam tests the understanding that authentication methods must be registered and up-to-date for the reset to succeed, especially when the user is prompted for additional verification.
How to eliminate wrong answers
Option A is wrong because disabling and re-enabling the account would not resolve a missing or misconfigured authentication method; it only toggles the account status, which is already enabled. Option C is wrong because reinstalling the corporate portal application addresses client-side corruption, not an identity or authentication method issue that prevents access after a password reset. Option D is wrong because a Microsoft Entra ID P2 license is not required for basic password reset or authentication method registration; P2 adds advanced features like Identity Protection and Privileged Identity Management, but the core SSPR and MFA registration work with P1 or even free tier licenses.