Office 365 Monitoring: Admin Center Service Incident (Dec. 2, 2021)
On December 2, 2021, at ~8:43 PM UTC, Microsoft communicated via tweet (@MSFT365status) that they were investigating an issue in which mobile devices were being flooded with Microsoft admin center notifications. More importantly, they were also investigating reports that some system admins were experiencing delays or were unable to access the Microsoft admin center.