Kurzer Nachtrag von heute: Andreas P. hat mich per E-Mail darauf hingewiesen, dass es immer noch Probleme bei Exchange Online gibt. Einige Teilnehmer erhalten möglicherweise eine unerwartete Absage, wenn eine Besprechung in einem gemeinsamen (shared) Kalender aktualisiert wird, schreibt Microsoft in seinem Service Health Advisory EX1109507. Hier die entsprechende Original-Mitteilung, die mit Andreas P. zugeschickt hat (danke dafür).
Some attendees may receive an unexpected cancellation message when a meeting on a shared calendar is updated
ID: EX1109507
Issue type: Advisory
Status Service Degradation
Impacted services Exchange Online
Details
Title: Some attendees may receive an unexpected cancellation message when a meeting on a shared calendar is updated
User impact: Attendees may receive an unexpected cancellation message when a meeting on a shared calendar is updated.
More info: Impact is intermittent, and specific to updates that are made on behalf of the organizer using Outlook (classic) for Windows with the calendar sharing improvements enabled.
Current status: We've received reports of an issue in which some updates made to meetings on a shared calendar using Outlook (classic) for Windows may result in unexpected cancellation messages to some attendees. We've identified a code bug that surfaces when the meeting organizer has previously also been added as a required attendee. We've developed a code fix that will undergo extensive validations to ensure it resolves the underlying issue. We'll aim to provide a resolution timeline once one becomes available.
Scope of impact: Some attendees may be intermittently impacted.
Start time: Thursday, June 5, 2025, at 12:00 AM UTC
Root cause: A code bug has surfaced when the meeting organizer has previously also been added as a required attendee.
Next update by: Saturday, July 5, 2025, at 5:30 PM UTC
MVP: 2013 – 2016
