question

MaartenCuppens-8127 avatar image
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MaartenCuppens-8127 asked KaelYao-MSFT commented

meeting rooms allow double bookings

Dear,

I have meeting rooms with a client that for some reason allows double bookings which is not the intention.
I do get the message when I want to book that it is occupied but I can just click send anyway and it will still be booked.
If I then look in the meetingrequest I see that the meetingrooms do not answer.
All meeting rooms have the license Mircrosoft Teams Ecploratory.
I have run this command via powershell:

Get-Mailbox <identety> | Format-List ResourceType,RecipientType,RecipientTypeDetails,IsLinked,LinkedMasterAccount,IsShared

The result is as follows:

ResourceType : Room
RecipientType : UserMailbox
RecipientTypeDetails : RoomMailbox
IsLinked : False
LinkedMasterAccount : NT AUTHORITY
IsShared : False

According to the steps I followed from microsoft this should be correct
If I run this command from step 2:

Get-Mailbox <identety>| Format-List

I get the following result:

RunspaceId : 508e9072-9153-4b9d-9367-2b8fb8bee2c3
AutomateProcessing : AutoAccept
AllowConflicts : False
AllowDistributionGroup : True
AllowMultipleResources : True
BookingType : Standard
BookingWindowInDays : 1080
MaximumDurationInMinutes : 1440
MinimumDurationInMinutes : 0
AllowRecurringMeetings : True
EnforceAdjacencyAsOverlap : False
EnforceCapacity : False
EnforceSchedulingHorizon : True
ScheduleOnlyDuringWorkHours : False
ConflictPercentageAllowed : 0
MaximumConflictInstances : 0
ForwardRequestsToDelegates : True
DeleteAttachments : True
DeleteComments : False
RemovePrivateProperty : True
DeleteSubject : False
AddOrganizerToSubject : False
DeleteNonCalendarItems : True
TentativePendingApproval : True
EnableResponseDetails : True
OrganizerInfo : True
ResourceDelegates : {a name}
RequestOutOfPolicy : {}
AllRequestOutOfPolicy : False
BookInPolicy : {}
AllBookInPolicy : True
RequestInPolicy : {}
AllRequestInPolicy : False
AddAdditionalResponse : False
AdditionalResponse :
RemoveOldMeetingMessages : True
AddNewRequestsTentatively : True
ProcessExternalMeetingMessages : False
RemoveForwardedMeetingNotifications : False
AutoRSVPConfiguration : Microsoft.Exchange.Data.Storage.AutoRSVPConfiguration
MailboxOwnerId : Europe 1 + 2
Identity : Europe 1 + 2
IsValid : True
ObjectState : Changed

This should also be correct.
Any ideas about the cause of this ?

Kind regards,

Cuppens Maarten

office-exchange-online-itpro
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"I do get the message when I want to book that it is occupied but I can just click send anyway and it will still be booked."

How are you booking these? Thats not a normal message.

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AndyDavid avatar image
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AndyDavid answered MaartenCuppens-8127 commented

Ok, if you are Saving the meeting directly on the calendar, that wont work and that bypasses the Calendar Attendant.

The room calendar should only have reviewer permissions so that no one can save the meeting directly on the calendar.

Meetings should be create from the users own mailbox and sent to the room.

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Hy Andy,

I save the meeting from my personal calendar.
And i select the right location.
the blue marks are the one that are created on the personal.
So normally that shouldn't be the problem.

Kind regards,

Cuppens Maarten

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KaelYao-MSFT avatar image
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KaelYao-MSFT answered KaelYao-MSFT commented

Hi @MaartenCuppens-8127

I tested in my lab and was able to book the room by "Send anyway".

But the expected behavior here is you are supposed to receive an email sent by the room mailbox indicating your request was rejected due to conflicts.
While in this case the room mailbox didn't respond.

If you assign your account full access to the room mailbox, can you find the request email in deleted items or in inbox folder of the room mailbox?
To me I suppose the possible cause may be that the message didn't actually reach the room mailbox.


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Hi @KaelYao-MSFT,

As you can see in the picture.
i recieve still a email that they need to fill in a forum.
With no full access to the meeting room.
So i think that isin't the problem.

kind regards,

Cuppens Maarten

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KaelYao-MSFT avatar image KaelYao-MSFT MaartenCuppens-8127 ·

Do you have the meeting room booking integrated with Google forms?
If you fill in the form, would the request be reject by the room mailbox?

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Hi @MaartenCuppens-8127

I am writing here to confirm with you how thing going now?
Is there any update on this issue?

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