All users may be unable to access the Exchange Online service
EX212990, Exchange Online, Last updated: May 13, 2020 2:41 PM
Start time: May 13, 2020 1:23 PM
Users may be unable to sign in to the Exchange Online service.
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Title: All users may be unable to access the Exchange Online service
User Impact: Users may be unable to sign in to the Exchange Online service.
More info: Users may encounter an error with the following message: &#34;AADSTS50011: The reply URL specified in the request does not match the reply URLs configured for the application: &#39;e48d4214-364e-4731-b2b6-47dabf529218&#39;&#34;.
Current status: Additional investigation determined that a recent change contained a code regression that resulted in authentication failures within the Outlook on the web. We&#39;ve disabled the deployment and are currently in the process of rolling the affected change back to mitigate impact.
Scope of impact: This issue may potentially affect any user.
Root cause: A recent change included a code regression that resulted in users experiencing authentication failures.
Next update by: Wednesday, May 13, 2020, 4:00 PM (8:00 PM UTC)