End Event on Room Resource calendar - exchange-server

The problem that I face: I currently use a product that displays calendar items on an iPad outside of conference rooms. I have all the room resources set up and everything works brilliantly except if I try to end the event early from this display.
The reason it doesn't end: When User A schedules a meeting and adds the room Conference Room as a resource, and Conference Room accepts, the meeting is still owned by the organizer, or in this case User A. Because of this, the room itself can not edit times on an event, only the organizer can.
The question: Is there any way, to have the Room auto accept the meeting, and also be able to edit the event?
Please note, I have tried this with Exchange 2007, Exchange 2010, Exchange 2013, and Office 365. The servers have been both on-premises and hosted.

No the only valid editor of a Meeting is the organizer for the reason that each copy of the meeting stored in the Attendees mailboxes is a separate item in the Exchange Mailstore. Eg Even if the Organizer modifies the appointment and doesn't send out Meeting updates the changes they make won't show on the attendees (or Room Mailbox) calendar until the updates are sent and accepted. This is fundamental to the way in which Appointments work if you need to change a meeting for some reason you may want to look at impersonating the Owner of the Appointment in EWS. The one thing the Room mailbox (or any attendee) could do is propose a new meeting time which would be a separate message that would sent back to the Organizer who then once they accepted would send out a normal Meeting update to all attendees.
Cheers
Glen

Related

Get All Attendees of the Outlook Meeting room

In my PowerApps development, I need to retrieve all the attendees in the Outlook meeting room.
Using the Graph API, I will be able to retrieve all the user's calendar events.
But my requirement little different. I need to get based on the Meeting Room. So that I can find who are all planning to visit the meeting room.
Can anyone suggest me an idea to achieve my requirement?
Room is another mailbox, so you can get its activities and for each appointment check who the recipients are.

Correlating meetings in Outlook calendar on different computers

If you send a meeting request to someone using Outlook, no user or custom MAPI properties will go into the meeting created the attendee's Outlook calendar.
I am looking for a way to correlate meetings that belong together across multiple attendee's computer.
I have found that the "Conversation ID" or the first 44 characters of the "Conversation Index" property are the same across all attendees computer, ONLY if all the attendees are on the same MS Exchange server. This does not work for different exchange servers or local computer only calendars.
Is there any reliable way that I can do this?
Appointment id (AppointmentItem.GlobalAppointmentID) will be the same for all instances of the appointment.

Exchange EWS ErrorCalendarIsNotOrganizer despite being the organizer

I'm trying to cancel a meeting I created by using an EWS XML CreateItem request (against a 2013 server):
<ns2:CreateItem MessageDisposition="SendAndSaveCopy"><ns2:Items>
<ns1:CancelCalendarItem>
<ns1:ReferenceItemId Id="AAMkA...." ChangeKey="DwAAA..."/>
</ns1:CancelCalendarItem>
</ns2:Items></ns2:CreateItem>
So far so good, however Outlook denies me access with the ResponseCode "ErrorCalendarIsNotOrganizer" / "User must be an organizer for CancelCalendarItem action".
A look in the event detail by using GetItem with BaseShape=ALL_PROPERTIES reveals that the account I use is set as Organizer, however at the same time:
the IsOrganizer field is set to false
in EffectiveRights the fields Read, Modify and Delete are true.
I can delete the appointment lateron using a DeleteItem request and it works, however it only removes the appointment from the room's calendar but not from the mailboxes of the attendees.
What causes this? There is no impersonation in use, only the service account I use has delegation access to every room mailbox (to be able to see all appointments).
I can delete the appointment lateron using a DeleteItem request and it works, however it only removes the appointment from the room's calendar but not from the mailboxes of the attendees.
It sounds like your accessing the appointment in the Room Mailboxes calendar ? this is why even if your using the account that is the organizer of that appointment the isOrganizer will return as false because this property is only true on the copy of the Appointment in the Organizers calendar. To correctly cancel the meeting you need to do that on the calendar of the Organizer (not the rooms or any attendee instance of the meeting). This will still only delete the appointment in the organizer calendar and send cancellation messages to the attendees.
An important point is that all instances of the meeting stored in the Attendees and Meeting Room calendars are separate Exchange Store items with no direct link. So deleting the organizer instance (or any attendee instance) has no affect on the other attendees instances these must be processed separately by the attendees themselves based on the cancellation message that is received.

Can UCWA retrieve the scheduled Microsoft Outlook meetings?

I am specifically interested in the OUTLOOK Meeting information and
NOT ONLINE MEETING.
Can I GET the outlook calendar meetings (along with its details: time, subject, location, attendees, etc) using UCWA.
I asked about the same on UCWA forum of MSDN, and came to know that it isn't possible via UCWA.
However, this raises another question:
As a Lync user, if I hover my mouse over a contact who's busy in a meeting, then it shows the time until when he/she is busy, for example "Busy until 2 p.m.".
How is Lync fetching this outlook meetings information and displaying the output as per the meeting time. How does this mechanism work?
Lync/Skype for Business clients are making requests via Outlook APIs to grab non-online-meeting events to display that data. You would need to design your application to sign-in to their Outlook account and make use the available Outlook APIs to get all the meetings/appointments that are not present in Lync/Skype.

Exchange: Sending out Meeting cancellations even if meeting is in the past

For my code to run I need to fetch all the meeting cancellations from a shared mailbox.
I just discovered, those meeting cancellations are only send by the respective outlook client, when the meeting, which is about to be cancelled, is in the future. If the meeting is in the past, it is just deleted from the organizers mailbox and remains in the mailboxes from all other attendees.
Is there any option on the exchange server or outlook client, which allows me to have the organizer send a meeting cancellation message to all attendees, even if the meeting is in the past?
We're using Exchange Server 2013.

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