Ok, I have been through a number of posts here and haven't found a solution yet. We have two conference rooms both set up as room mailboxes in exchange 2007. They currently allow autoAcceptance booking and book properly when there is no conflict. However if there is a conflict they send a tentative response. My question is this. How do I get them to either send a "declined" response instead of a tentative response and not put in on the resources calendar, or can you prevent it from booking the conflict at all and give an error even before the user submits the event. We do not have any limited booking users, any user can book any conference room at any time if it is available. Get-MailboxCalendarSettings shows these results: AutomateProcessing : AutoAccept AllowConflicts : False BookingWindowInDays : 256 MaximumDurationInMinutes : 1440 AllowRecurringMeetings : True EnforceSchedulingHorizon : False ScheduleOnlyDuringWorkHours : False ConflictPercentageAllowed : 0 MaximumConflictInstances : 0 ForwardRequestsToDelegates : True DeleteAttachments : True DeleteComments : True RemovePrivateProperty : True DeleteSubject : True DisableReminders : True AddOrganizerToSubject : True DeleteNonCalendarItems : True TentativePendingApproval : True EnableResponseDetails : True OrganizerInfo : True ResourceDelegates : {} RequestOutOfPolicy : AllRequestOutOfPolicy : True BookInPolicy : AllBookInPolicy : True RequestInPolicy : AllRequestInPolicy : True AddAdditionalResponse : True AdditionalResponse : <DIV><FONT size=2 face=Tahoma>Helland Con ference Room at your service.</FONT></DIV> RemoveOldMeetingMessages : True AddNewRequestsTentatively : False ProcessExternalMeetingMessages : False DefaultReminderTime : 15 RemoveForwardedMeetingNotifications : False Identity : pesi.com/PESI_Users/Retired/helland_croom

Have you tried setting the MaximumConflict Response to 1 instead of 0?

Hi, My room mailbox has same settings as yours, but the problem does not happen in my server. Try to create a new room mailbox and just enable the 'Automatically process meeting requests and cancellations' and see if the issue persists: Set-MailboxCalendarSettings roomID -AutomateProcessing:Autoaccept More information about Resource scheduling, refer the following link: Resource scheduling in Exchange Server 2007 http://msexchangeteam.com/archive/2007/05/14/438944.aspx

Hi, My room mailbox has same settings as yours, but the problem does not happen in my server. Try to create a new room mailbox and just enable the 'Automatically process meeting requests and cancellations' and see if the issue persists: Set-MailboxCalendarSettings roomID -AutomateProcessing:Autoaccept More information about Resource scheduling, refer the following link: Resource scheduling in Exchange Server 2007 http://msexchangeteam.com/archive/2007/05/14/438944.aspx A new room properly declined the meeting. Any idea what setting it could be? One thing I noticed is that it came up with an auto generated response, could it have anything to do with the? AdditionalResponse : <DIV><FONT size=2 face=Tahoma>Helland Con ference Room at your service.</FONT></DIV> or AddAdditionalResponse : True

A new room properly declined the meeting. Any idea what setting it could be? One thing I noticed is that it came up with an auto generated response, could it have anything to do with the? AdditionalResponse : <DIV><FONT size=2 face=Tahoma>Helland Con ference Room at your service.</FONT></DIV> or AddAdditionalResponse : True These settings had nothing to do with it, ill try some of the other discrepancies between the two before I have to recreate the rooms

Thank you bolson32, Setting the AllRequestOutOfPolicy to $false fixed the issue PS below: [PS] C:\>Set-MailboxCalendarSettings -Identity "<identidy of the resource>" -AllRequestOutOfPolicy $false