15/09/2023 08:45:00 AM (GMT)
NHSmail Reference : INC38275372
Microsoft Reference : EX675238
Issue Status : RESOLVED
Issue Description : Users may be unable to access the Exchange Online service through multiple connection methods.
More info : The affected connection methods include:
– Outlook for the web
– Representational State Transfer (REST) API
– Calendar access through the Microsoft Teams apps
– Search through Microsoft Teams desktop client and web app
Final Update : 26/09/2023 11:18:00 AM – Microsoft finished applying their configuration changes to expedite resolution and confirmed via service health telemetry information that all impacted scenarios have been remediated successfully
Scope of impact : This issue may potentially impact any user attempting to access the Exchange Online service through Outlook for the web, methods utilizing the REST API, or their calendar through the Microsoft Teams apps.
Root Cause : A recent change intended to provide an updated method for Microsoft’s search service to perform searches introduced the latency responsible for impact.