Automatic Accept or Decline with Shared Mailbox and Room Mailbox

Hello everyone

I have the following questions:
I use a shared mailbox and a room mailbox. For both I want to manage the calendars via the Office 365 Admin Console and look for the options: automatic accept or decline.

I want it to look like this:

- Shared mailbox:
- Automatically accept meeting requests and remove cancelled meetings
- Send a confirmation that meeting request was accepted

- Room mailbox:
- Automatically accept meeting requests and remove cancelled meetings
- Automatically decline meeting requests that conflict with an existing appointment or meeting
- Send a onfirmation that meeting request was accepted

Can anyone help me?
Giu GuaAsked:
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Vasil Michev (MVP)Commented:
This is only possible on Room/resource mailboxes, with the Calendar processing set to AutoAccept. This parameter cannot be toggled on user/shared mailboxes, thus there is no way to have a meeting auto-accepted and confirmation sent. For more information refer to the Set-CalendarProcessing cmdlet help:

Now, if you are referring to the "Automatically accept meeting requests and remove cancelled meetings" option in Outlook, that's different, as it's a client-based setting and cannot be configured centrally. You will have to configure it via Outlook for each mailbox you want to toggle it.

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