Microsoft 365 Alert – Service Degradation – Exchange Online – Users may intermittently be unable to update or cancel calendar items in Outlook Win32 desktop client – ONGOING

11/06/2024 08:53:00 AM

NHSmail Reference: INC43615917

Microsoft Reference: EX800425

Issue Status: ONGOING

Issue Description: Users may intermittently be unable to update or cancel calendar items in Outlook Win32 desktop client.

More info: Users intermittently receive an error when updating or canceling calendar items that could prevent these actions from occurring; however, users may also be able to click through the error and see the operation succeed. As a work around, users can update meetings using Outlook on the web or new Outlook desktop client.

Current Update: 14/06/2024 08:58:00 AM Microsoft are developing a code change that they are preparing to deploy to their internal testing environment for validation and to confirm that the fix will be successful in remediating impact. Additionally, they don’t anticipate being able to isolate the root cause until further validation of the code fix takes place due to the complexity of the issue and not being able to consistently reproduce the impact scenario. They will provide more insights into the suspected root cause once they become available.

Scope of impact: This event may intermittently impact users updating or canceling calendar items Outlook Win32 desktop client.

Next Update By: Tuesday, June 18, 2024, at 10:00 PM UTC

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