Microsoft has determined that a section of caching infrastructure is performing below acceptable performance thresholds, causing calls to gather user licensing information to bypass the cache and go directly to Azure Active Directory infrastructure resulting in high resource utilization, resulting in throttling and impact. They are analyzing forensics within the caching infrastructure to identify the cause of the issue.
Posted Apr 20, 2023 - 12:45 EDT
Investigating
Microsoft is currently reporting performance issues across their 365 suite of apps. As a result, customers may have issues accessing the web applications, such as Excel Online.
Our agents have found that users can still access the applications directly through their URLs:
Microsoft 365 Admin Center - portal.office.com Outlook - outlook.office.com Microsoft Teams - teams.microsoft.com Word Online - microsoft365.com/launch/word Excel Online - microsoft365.com/launch/excel