I have several conference rooms and resource items. how can I prevent from 'double booking'? helmut

Hello Helmut, For individual conference room you can do like below. Set-MailboxCalendarSettings ResourceRoomName -AllowConflicts $False For all conference Room, which has RecipientTypeDetails is RoomMailbox, you can set like below. Get-Mailbox -ResultSize Unlimited| Where{$_.RecipientTypeDetails -eq "RoomMailbox"} | Set-MailboxCalendarSettings ResourceRoomName -AllowConflicts $False Reference: Set-MailboxCalendarSettings http://technet.microsoft.com/en-us/library/aa996340(EXCHG.80).aspx

I tried this for one conference room "38" do I have to restart the exchange server in order for this to affect? it doesn't seem to work. thanks

Hi heloeffler, Amits cmdlet is correct, the function will take effect immediately The following is the output of my room mailbox setting, please compare with yours: ======== AutomateProcessing : AutoAccept AllowConflicts : False BookingWindowInDays : 180 MaximumDurationInMinutes : 500 AllowRecurringMeetings : True EnforceSchedulingHorizon : False ScheduleOnlyDuringWorkHours : False ConflictPercentageAllowed : 0 MaximumConflictInstances : 0 ForwardRequestsToDelegates : True DeleteAttachments : False DeleteComments : False RemovePrivateProperty : True DeleteSubject : False DisableReminders : True AddOrganizerToSubject : True DeleteNonCalendarItems : False TentativePendingApproval : True EnableResponseDetails : True OrganizerInfo : True ResourceDelegates : {} RequestOutOfPolicy : AllRequestOutOfPolicy : False BookInPolicy : AllBookInPolicy : True RequestInPolicy : AllRequestInPolicy : False AddAdditionalResponse : True AdditionalResponse : <DIV><FONT face=Tahoma size=2>accepted</F ONT></DIV> RemoveOldMeetingMessages : True AddNewRequestsTentatively : True ProcessExternalMeetingMessages : False DefaultReminderTime : 15 RemoveForwardedMeetingNotifications : False Identity : Fourthcoffee.com/Ex Team/Meeting Room - SH ====================

Sorry, I'm new at this.... how can I get a listing of the cmdlets- setting-contentsfor "mailboxcalendarSettings"? Here is myproblem: I set up conference room 38 with "AllowConflicts" :False when I now book two different meetings for this room 38 for the same time, it will show me as I add the conference room that it is not available BUT it does let me book it anyway. Question: is there anyway I can prevent two poeple from setting a meeting for the same conference room for the same time? how can I block the conference room from being booked twice? thanks - Helmut

You want to get the parameters list which you can set? Please review from the article below Set-MailboxCalendarSettings Could you describe how actually you got the warning like add the conference room that it is not available BUT it does let me book? And did you get the comparison of the settings of room mailbox? Get-MailboxCalendarSettings -id RoomMailboxSMTPAddress | fl

Sorry for not being specific. I did not get a warning, this was my explanation: Here is the process: I book meeting Ain conference room 38for today at10am for 1 hour I book meeting B in conference room 38 for today at 10am for 1 hour result = during booking operation I can see that the roomis already booked BUT I can book it again. Question: is there a way that will prevent me from making the second booking? Thanks Helmut

Sorry for not being specific. Let me try again: I book meeting A in Conference room "38" for 10am today I book meeting B in Conference room "38" for 10am today What I expected: System would NOT let me make the second booking. What happened: during booking operation, I can see that the room is already booked BUT it accepts the second booking Question: What must I do that system will prevent me from making double bookings? Helmut

1. Please try to create a new room mailbox, see if you can disable the conflict on it, if yes, compare the parameters of the following cmdlets between issued one and normal one Get-mailboxcalendarsettings -Identity < issued room mailbox address> | fl >c:\Calendarissue.txt Get-mailboxcalendarsettings -Identity <new created room mailbox address> | fl >c:\Calendarnew.txt 2. The following is the output that I ran against a good room mailbox, please compare with the issued one Get-mailbox -Identity < issued room mailbox address> | fl >c:\mailbox.txt ============ Database : SERVERNAME\First Storage Group\mailbox1 DeletedItemFlags : DatabaseDefault UseDatabaseRetentionDefaults : True RetainDeletedItemsUntilBackup : False DeliverToMailboxAndForward : False RetentionHoldEnabled : False EndDateForRetentionHold : StartDateForRetentionHold : ManagedFolderMailboxPolicy : ExchangeGuid : f2bb6a8f-190c-4655-add1-13752fb97774 ExchangeSecurityDescriptor : System.Security.AccessControl.RawSecurit yDescriptor ExchangeUserAccountControl : AccountDisabled ExternalOofOptions : External ForwardingAddress : RetainDeletedItemsFor : 14.00:00:00 IsMailboxEnabled : True Languages : {en-US} OfflineAddressBook : ProhibitSendQuota : unlimited ProhibitSendReceiveQuota : unlimited DowngradeHighPriorityMessagesEnabled : False ProtocolSettings : {} RecipientLimits : unlimited UserAccountControl : AccountDisabled, NormalAccount, DoNotExp irePassword IsResource : True IsLinked : False IsShared : False LinkedMasterAccount : NT AUTHORITY\SELF ResourceCapacity : ResourceCustom : {} ResourceType : Room SamAccountName : room.sh SCLDeleteThreshold : SCLDeleteEnabled : SCLRejectThreshold : SCLRejectEnabled : SCLQuarantineThreshold : SCLQuarantineEnabled : SCLJunkThreshold : SCLJunkEnabled : AntispamBypassEnabled : False ServerLegacyDN : /o=Organization/ou=Exchange Administrati ve Group (FYDIBOHF23SPDLT)/cn=Configurat ion/cn=Servers/cn=SERVERNAME ServerName : ServerName UseDatabaseQuotaDefaults : True IssueWarningQuota : unlimited RulesQuota : 64KB Office : UserPrincipalName : room.sh@DOMAIN.com UMEnabled : False MaxSafeSenders : MaxBlockedSenders : Extensions : {} AcceptMessagesOnlyFrom : {} AcceptMessagesOnlyFromDLMembers : {} AddressListMembership : {test, Default Global Address List, All Users, All Rooms} Alias : room.sh OrganizationalUnit : Domain.com/Ex Team CustomAttribute1 : . CustomAttribute9 : DisplayName : Meeting Room - SH EmailAddresses : {smtp:room.sh@test.com, SMTP:room.sh@Domain. com} GrantSendOnBehalfTo : {} HiddenFromAddressListsEnabled : False LegacyExchangeDN : /o=Organization/ou=Exchange Administrati ve Group (FYDIBOHF23SPDLT)/cn=Recipients /cn=room.sh MaxSendSize : unlimited MaxReceiveSize : unlimited PoliciesIncluded : {{49368F55-46FC-4B68-AA2C-B2B67B720346}, {26491CFC-9E50-4857-861B-0CB8DF22B5D7}} PoliciesExcluded : {} EmailAddressPolicyEnabled : True PrimarySmtpAddress : room.sh@Domain.com RecipientType : UserMailbox RecipientTypeDetails : RoomMailbox RejectMessagesFrom : {} RejectMessagesFromDLMembers : {} RequireSenderAuthenticationEnabled : False SimpleDisplayName : UMDtmfMap : {} WindowsEmailAddress : room.sh@Domain.com IsValid : True OriginatingServer : SERVERNAME.DOMAIN.com ExchangeVersion : 0.1 (8.0.535.0) Name : Meeting Room - SH DistinguishedName : CN=Meeting Room - SH,OU=Ex Team,DC=DOMAIN,DC =com Identity : DOMAIN.com/Ex Team/Meeting Room - SH Guid : 9920ad18-5846-42d4-9659-6c259d759bf6 ObjectCategory : DOMAIN.com/Configuration/Schema/Person ObjectClass : {top, person, organizationalPerson, user } . ====================== Main spots to check: If AutomateProcessing is set as AutoAccepted. If theres delegator for it, remove the delegator, try to reproduce the issue. Make sure that ResourceType is Room

Hi, I've done all the above as well as checked settings from comparable conference rooms from others on TechNet and yet, two people can still book the same conference room for the same date at the same time. I just don't know what to do anymore. If you have any other suggestions, I would be greatful Thanks Helmut

Hi, I am slightly at a loss. I followed various instructions from various people. And compared settings. And still it is possible for two people to book the same conference room for the same date and the same time. Frustrated....Any suggestions?