Double Booking Conferance Room in Calendar

Frequent Contributor

How does an Exchange Online allowed a Conference room (Resources) to get double book


1st User booked the room 4pm to 4:30pm and received an Auto Accept accepts for the room request.

2nd User asked a user that has Full Access to the Conference room to create a meeting from 2pm to 4:30pm.

Question: Why didn’t the user with Full Access to the Conference receive a conflict message?


Conference Room Settings:

AutomateProcessing : AutoAccept
AllowConflicts : False
BookingType : Standard
BookingWindowInDays : 180
MaximumDurationInMinutes : 1440
AllowRecurringMeetings : True
EnforceSchedulingHorizon : True
ScheduleOnlyDuringWorkHours : False
ConflictPercentageAllowed : 0
MaximumConflictInstances : 0
ForwardRequestsToDelegates : True
DeleteAttachments : True
DeleteComments : True
RemovePrivateProperty : True
DeleteSubject : True
AddOrganizerToSubject : True
DeleteNonCalendarItems : True
TentativePendingApproval : True
EnableResponseDetails : True
OrganizerInfo : True
ResourceDelegates : {XXXXXX}
RequestOutOfPolicy : {}
AllRequestOutOfPolicy : False
BookInPolicy : {}
AllBookInPolicy : True
RequestInPolicy : {}
AllRequestInPolicy : False
AddAdditionalResponse : False
AdditionalResponse :
RemoveOldMeetingMessages : True
AddNewRequestsTentatively : True
ProcessExternalMeetingMessages : False
RemoveForwardedMeetingNotifications : False
MailboxOwnerId : Collaborative Conference Room
Identity : Collaborative Conference Room
IsValid : True
ObjectState : Changed



Thank You,



1 Reply
best response confirmed by Brian Reid (MVP)

Because someone with Full Access on a calendar can double book. You have Full Access on your own calendar and can double book without any notification. It is presumed someone with Full Access booking something on a calendar would check to see if the time is available or not.