Fix Outlook Delegate Cannot Save Meeting Invitation Changes
Question details
An Outlook delegate is unable to save updates to meeting invitations, specifically when modifying attendees, as the changes revert after sending.
- Product
- Microsoft Outlook
- Device & OS
- not provided
- Scenario
- A user acting as a delegate is managing a shared calendar and needs to add or remove attendees for an existing meeting.
- Observed behavior
- The delegate is able to edit the meeting details, but once the update is sent to attendees, the changes disappear from the calendar event.
Ensure you have a stable internet connection so Outlook can sync with the Exchange server, and verify with the calendar owner that your delegate permissions have not been recently modified or downgraded.
Remove and Re-add the Shared Calendar
Reconnecting the shared calendar clears local caching errors and forces Outlook to retrieve fresh permission settings from the server.
Shared calendars can sometimes suffer from corrupted local sync caches. Removing the calendar and accepting a fresh invitation usually resolves hidden permission glitches that prevent updates from saving.
In the Outlook calendar view, right-click the shared calendar under the 'Shared Calendars' group and select 'Delete Calendar'.
Ask the calendar owner to navigate to their calendar properties, remove your current delegate access, and send you a new sharing invitation with 'Delegate' (Editor) permissions.
Open the sharing invitation email in your inbox and click the 'Accept' button to re-add the calendar to your Outlook profile.
Open a test meeting on the re-added shared calendar, modify the attendees, click 'Send Update', and verify if the changes are now successfully saved.
Test Using Outlook on the Web (OWA)
Testing via the web browser helps determine whether the issue is isolated to your desktop application or is a broader server-side permission problem.
Update Microsoft Outlook Desktop Application
Installing the latest Office updates can patch known bugs related to delegate access and shared calendar synchronization.
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Frequently Asked Questions
Why do attendee changes disappear after sending a meeting update as a delegate?
This issue is typically caused by local caching errors in the Outlook desktop app, corrupted shared calendar permissions, or a temporary breakdown in synchronization between your app and the Exchange server.
How can I verify my delegate permissions in Outlook?
You cannot check this yourself. The calendar owner must navigate to File > Account Settings > Delegate Access to verify that you are listed with 'Editor' permissions or higher, which are required to modify meeting attendees.
Does this synchronization issue affect all delegates on the same calendar?
It varies. If multiple delegates report the same issue, the problem is likely on the calendar owner's end or related to the Exchange server. If only you are affected, the issue is isolated to your local Outlook profile.
Can repairing my Outlook profile fix calendar syncing bugs?
Yes. Navigating to File > Account Settings > Account Settings, selecting your email profile, and clicking 'Repair' can often resolve underlying synchronization issues that cause updates to drop.
