Update: Microsoft says Outlook and Teams are fully restored after an outage of more than 24 hours

Microsoft said on Saturday that service has fully recovered across Teams, Outlook and its other products, ending an outage that lasted more than 24 hours, according to Reuters. "We have completed our efforts to address the underlying issue of the incident and restored service to the remaining impacted customers and regions," the company posted on X. This updates our earlier reports on day two of the outage and the capacity-upgrade cause.

What changed

Reuters reports that reports of problems began climbing around 12:25 p.m. ET on Thursday, per Ookla. It describes the outage as one of the longest in Microsoft's history and the second disruption to its services this year. Microsoft has said server issues were behind it and that it is not aware of any malicious activity. The BBC reports Microsoft attributes the fault to a "network capacity upgrade," and that Copilot users should no longer be affected. The BBC puts the affected products at more than 430 million users and the reach at more than 70 countries.

Reuters says the outage hit government agencies from Australia and Japan to the United States, delayed trading firms, kept some companies from publishing earnings and led airlines to warn of communication lags. Organizations that run Microsoft software on their own servers were somewhat spared.

A second outage: Workday

Fox Business reported Saturday that Workday, which runs payroll and human resources systems for about 11,500 companies, suffered an outage that began Friday evening and was still keeping customers out on Saturday. Fox cites Downdetector reports of nearly 3,000 issues shortly after 5 p.m. Friday and a Workday statement that "some of our customers are experiencing a service disruption." We have not seen a cause from Workday, and nothing links the two outages. We have only that one report so far, and we will update if Workday publishes a status note.

What it means for a business owner

Restored does not mean caught up. Mail sent during the outage may arrive late, and delivery times can look odd. Anything with a deadline or a dollar amount that you sent Thursday or Friday is worth confirming by phone, as we laid out in our Main Street piece. If your payroll runs through Workday, check with your administrator before Monday's cutoffs rather than assuming it is back.

Microsoft shares closed Friday at $523.88 on our chart data, 5.7% below the Nov. 4 peak. We are not attributing that move to the outage. See Microsoft stock: what is going on.

Sources: Reuters via the New York Post; BBC News; Fox Business; chart data via Yahoo Finance. This is market information, not investment advice.