yasoon incident

Some users are facing issues logging in with their Microsoft account

yasoon experienced a minor incident on March 4, 2026 affecting Microsoft 365 for Jira, lasting 1d 12h. The incident has been resolved; the full update timeline is below.

Started: Mar 04, 2026, 08:12 PM UTC
Resolved: Mar 06, 2026, 08:38 AM UTC
Duration: 1d 12h
Detected by Pingoru: Mar 04, 2026, 08:12 PM UTC

Affected components

Microsoft 365 for Jira

Update timeline

identified Mar 04, 2026, 08:12 PM UTC

We have identified an incident where a subset of users will see error messages when trying to login with their Microsoft account. Upon investigation we discovered that Microsoft seems to be rolling out a set of changed browser headers which are causing issues. We are working on a fix - in the meantime, re-trying to login for a few times seems to solve the issue for most users.
resolved Mar 06, 2026, 08:38 AM UTC

Microsoft seems to have rolled back the change, we'll be monitoring and working on an implementation that works around this new header, should it roll out eventually.