Exchange Online service alert

THE ISSUE HAS NOW BEEN RESOLVED

Final status: We’ve confirmed that the automated script has been successfully deployed across the affected environment. Our monitoring indicates that contention between the two processes is being resolved as expected.

Microsoft is reporting that some users may be having an issue accessing emails when using Outlook on the web.

It looks like its only OWA users are having this issue. Users who are using Outlook or other 3rd party clients to access emails are not affected.

We will now monitor this issue and once Microsoft releases another update we will look at reporting it.

Please find the Microsoft alert below.

Latest update from Microsoft as of 24/08/2021

User Impact: Users may be unable to access their mailbox via Outlook on the web. Current status: We’ve identified that two separate processes are attempting to update a user at the same time, causing contention when applying their licence. We’ve developed an automated script that will resolve the contention. We’re deploying the script throughout the affected environment and affected users will experience relief as this completes. Scope of impact: This issue may impact a small number of users that have recently had their Exchange Online licence created or updated.

Advisory information

Title: Some users may be unable to access their mailbox via Outlook on the web
ID: EX280059

Status

Service Degradation

Details

Title: Some users may be unable to access their mailbox via Outlook on the web

User Impact: Users may be unable to access their mailbox via Outlook on the web.

Current status: We’ve identified that two separate processes are attempting to update a user at the same time, causing contention when applying their licence. We’ve developed an automated script that will resolve the contention. We’re deploying the script throughout the affected environment and affected users will experience relief as this completes.

Scope of impact: This issue may impact a small number of users that have recently had their Exchange Online licence created or updated.

Start time: Tuesday, July 27, 2021, at 12:00 PM UTC

Root cause: Impact is caused by two separate processes attempting to update a user at the same time, causing contention when applying their licence.

Next update by: Monday, August 30, 2021, at 12:00 PM UTC