On May 4, 2021, at ~9:52 am UTC, Microsoft reported an unspecified issue with Power Apps and Power Automate. Twitter users responded confirming impacts to at least the North/South American geos.
Approximately an hour later, Microsoft was able to identify the issue (timeout errors within caching components) and a restart/reroute was being performed as the investigation continued.
On April 29, 2021, at ~5:44 am UTC, Microsoft reported an issue with the video and audio quality of Microsoft Teams meetings which were impacting EMEA users.
Twitter responses were as expected, given the Microsoft Teams issue just two days ago (April 27).
On April 27, 2021, at ~6:30 am UTC, Microsoft reported an issue with Microsoft Teams impacting users in Europe and Asia.
Twitter users globally quickly responded, confirming the Teams outage, the Teams app crashing, and the breadth of the impact could perhaps be global and not limited to the Europe and Asia geos.
On April 22, 2021, at ~2:55 pm UTC, Microsoft reported a potential Exchange Online mailflow incident impacting users in North America.
Many Twitter users soon chimed in stating that this "potential" issue was in fact a real issue for their organization.
On April 8, 2021 at ~8:15 pm UTC, Microsoft reported an issue that was preventing users in LATAM from accessing Microsoft 365 services and features.
Many users took to Twitter to share their frustration over the recent stream of outages, including a few major outages in recent weeks that left Microsoft 365 services down for hours. Some even joked about experiencing the feeling of deja vu.
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Microsoft’s Office 365 has had a rough couple of months when it comes to service outages. While every outage is different, one thing remains constant – disruption to your organization.
Just think about the three most recent outages. Were you prepared? How were your first alerted? How did you respond? Were you able to calculate IT downtime and lost productivity among your end-users?
On April 1, 2021 at ~10:43 pm UTC, Microsoft reported an issue that was preventing users from accessing the Microsoft's Azure cloud services and Microsoft 365 services. And no, unfortunately this is not an April Fools joke.
On March 31st, 2021 at ~1:45 am UTC, Microsoft reported an issue that was preventing users from accessing the Microsoft admin center.
Shortly after Microsoft's initial report, Microsoft tweeted again stating that the issue was affecting users in the United Kingdom, France, and Central United States
On March 18, 2021 at ~4:30 pm UTC, Microsoft reported an issue that was preventing users in EMEA from access Microsoft 365 services.
Users took to Twitter to express frustration with the recent string of outages over the past couple of weeks.
Throughout this post, we will be dissecting the key events of the worldwide Microsoft 365 services outage that spanned over 9 hours on March 15th 2021.
On March 15th, 2021 at 8:40 pm UTC, Microsoft reported an issues that was preventing users from accessing Microsoft 365 services. Shortly after, they confirmed that the issue could be affecting users worldwide.