This scenario involves Admin Consent Requests in Azure AD. When users try to use apps that require admin consent, requests are sent to designated reviewers who can approve or deny them.
* Admin1: Cloud Application Administrator - can review and approve admin consent requests.
* Admin2: Application Administrator - can review and approve admin consent requests.
* Admin3: Security Administrator - cannot approve app consent requests because this role does not have application management privileges.
* User1: No role assigned - can be listed as a reviewer but cannot approve, only receive notifications.
From Microsoft Documentation:
"Only users with sufficient permissions, such as the Application Administrator or Cloud Application Administrator roles, can grant admin consent in response to consent requests." Therefore, only Admin1 and Admin2 meet the requirement to review and approve.