On Tuesday, April 25, 2023, at approximately 4:21 PM ET, Microsoft reported via tweet @MSFT365status that they were investigating an issue that was impacting Exchange Online connectivity for users in North America.
On April 20, 2023, at approximately 7:56 AM ET, Microsoft tweeted via their account @MSFT365status that they were investigating an issue accessing Microsoft 365 online apps and Microsoft Teams Admin Center.
On March 29, 2023, at approximately 8:04 AM ET, Microsoft tweeted via their account @MSFT365status that they were investigating an issue in which some non-malicious URL links were being incorrectly marked as malicious by Microsoft Defender.
On March 27, 2023, at approximately 10:17 AM ET, the Microsoft @MSFT365status Twitter account reported that Microsoft was investigating an issue in which some users were experiencing delays and even failures when trying to open links through Safe Links.
On March 23, 2023, at ~8:22 AM ET, Microsoft communicated via tweet (@MSFT365status) that they were investigating an issue in which users with certain conditional access policies applied were unable to access any Microsoft 365 service.
For IT pros or system admins with Microsoft admin center "working" access, the incident number to reference for more complete details was MO531859.
On March 17, 2023, at approximately 6:45 AM ET, Microsoft announced via their Twitter account, @MSFT365status, that they had investigated an issue in which some users may have been unable to manage other users in the Microsoft Teams admin center.
On March 8, 2023, at ~2:50 PM ET, Microsoft tweeted (@MSFT365status) that they were investigating an issue impacting multiple Microsoft 365 services.
On March 1, 2023, at ~11:56 AM EST, Microsoft communicated via tweet (@MSFT365status) that they were investigating an issue in which users were unable to access Microsoft Exchange Online mailboxes.
On March 1, 2023, at ~3:25 AM EST, Microsoft sent out a message on Twitter (@MSFT365status) that they were investigating an issue in which users in the Asia Pacific region (APAC) were unable to access Microsoft Exchange Online services and unable to access Microsoft Teams.
On February 7, 2023, at ~6:38 PM EST, Microsoft announced on Twitter (@MSFT365status) that they were investigating an issue affecting access to Microsoft Teams services and service functionality for users in the Asia-Pacific region. Initially, Microsoft provided a single service incident number, TM512596, for system admins to refence in the Microsoft Admin Center.