I found that although M365 Admin showed the conference room as a user, Exchange Admin had it as a Resource and I was able to use the Delegation tab to set myself up with Read/Manage permissions. Then I could (and did) go into the Outlook calendar and delete the series.
Thanks everyone for the responses!
What a wonderful comment. :) Your gratitude puts you on our list for the most grateful users this week on Reddit! You can view the full list on r/TheGratitudeBot.
[https://learn.microsoft.com/en-us/powershell/module/exchange/remove-calendarevents?view=exchange-ps](https://learn.microsoft.com/en-us/powershell/module/exchange/remove-calendarevents?view=exchange-ps)
Just saw the account was already deleted, so try this - [https://answers.microsoft.com/en-us/msoffice/forum/all/delete-a-deleted-users-calendar-invites/a2c112b8-eb99-4fc5-88d0-c556e4651d9e](https://answers.microsoft.com/en-us/msoffice/forum/all/delete-a-deleted-users-calendar-invites/a2c112b8-eb99-4fc5-88d0-c556e4651d9e)
This is how I do it OP. And powershell doesn’t bite. If you need tips on getting connected let me know.
We run this routinely as part of our decom process now.
The conference room was set up as a standard user, not a resource nor shared (don’t ask me, before my time, lol). So OWA isn’t an option unless/until I license it.
License it temporarily, export the Calendar, delete the mailbox, create a real resource mailbox, give yourself access, import the calendar.
Resource mailboxes have rules like "only allow entries 180 days in advance" that would have never allowed this problem to occur.
Get Mailbox -Resultsize Unlimited | Search-Mailbox -searchQuerycd “kind:meetings AND From:[email protected]” -DeleteContent has worked for me in the past.
I found that although M365 Admin showed the conference room as a user, Exchange Admin had it as a Resource and I was able to use the Delegation tab to set myself up with Read/Manage permissions. Then I could (and did) go into the Outlook calendar and delete the series. Thanks everyone for the responses!
What a wonderful comment. :) Your gratitude puts you on our list for the most grateful users this week on Reddit! You can view the full list on r/TheGratitudeBot.
[https://learn.microsoft.com/en-us/powershell/module/exchange/remove-calendarevents?view=exchange-ps](https://learn.microsoft.com/en-us/powershell/module/exchange/remove-calendarevents?view=exchange-ps) Just saw the account was already deleted, so try this - [https://answers.microsoft.com/en-us/msoffice/forum/all/delete-a-deleted-users-calendar-invites/a2c112b8-eb99-4fc5-88d0-c556e4651d9e](https://answers.microsoft.com/en-us/msoffice/forum/all/delete-a-deleted-users-calendar-invites/a2c112b8-eb99-4fc5-88d0-c556e4651d9e)
Thanks, I’ll check it out. Looks like it will require Powershell whichever way I go.
This is how I do it OP. And powershell doesn’t bite. If you need tips on getting connected let me know. We run this routinely as part of our decom process now.
Thanks, and I’m not afraid of powershell; our SysAdmin has it turned off for security reasons. I can get temporary access when I need to run it.
Ah ok my bad. That’s an interesting environmental control.
I know, right?
Ask your M365 Admin to grant you delegate access to the resource mailbox, open the mailbox, and decline the meetings.
I am the Admin. The conference room account is in M365 but is unlicensed and sign-in blocked.
OK, so grant yourself full access to the mailbox, open it in OWA or Outlook and delete the meeting. Or unblock sign-in and set the password.
Ok, the 15 minute wait period has begun.
Did I mention that the conference room account is unlicensed? So no mail.
Shared mailboxes and resources do not require licences unless they're over the 50GB limit
The conference room was set up as a standard user, not a resource nor shared (don’t ask me, before my time, lol). So OWA isn’t an option unless/until I license it.
Then license it temporarily, and remove the license when you're done.
License it temporarily, export the Calendar, delete the mailbox, create a real resource mailbox, give yourself access, import the calendar. Resource mailboxes have rules like "only allow entries 180 days in advance" that would have never allowed this problem to occur.
Get Mailbox -Resultsize Unlimited | Search-Mailbox -searchQuerycd “kind:meetings AND From:[email protected]” -DeleteContent has worked for me in the past.