Microsoft 365 Alert – Service Degradation – Exchange Online – Users are intermittently redirected to the Outlook login page when trying to use the Report Server Web Service API – RESOLVED

24/04/2023 08:50:00 AM (GMT)

NHSmail Reference : INC35453359

Microsoft Reference : EX544330

Issue Status : RESOLVED

Issue Description : Users are intermittently redirected to the Outlook login page when trying to use the Report Server Web Service API.

More Information : Affected users report that they’re using the Reporting Web Service API to pull message trace data and reports. Microsoft suspect that subsequent retries at leveraging the Report Server Web Service API are successful, and therefore they recommend that users try again if they’re redirected to the Outlook login page.

Final Update : 28/04/2023 11:33:00 AM – Microsoft have applied the expedited version of the fix to all affected environments, and they have confirmed with affected users that the fix has successfully resolved the problem.

Scope of impact : Some users trying to use the Reporting Web Service API are intermittently redirected to the Outlook login page.

Root cause : A recent Experimentation and Configuration Service (ECS) change was resulting in a code conflict that was causing an exception to occur when sending requests to the Report Server Web Service API.Next steps :– Microsoft are investigating how the recent Experimentation and Configuration Service (ECS) change was resulting in a code conflict to prevent this problem from happening again.– Microsoft are also assessing why impact wasn’t identified prior to deploying the impacting change so that they can improve the update testing practices.

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