Strange Issue, Don't know if anybody had faced the same, Using exchange 2007 SP3 RU5 and all of sudden getting complaints about the meetings getting disappered from some of the conference rooms and the few user who booked the meeting was removed or disappered and then other users booked the same. I checked the settings, things were working fine but how come all of sudden issue started . Issue with both AutomateProcessing - AutoAccept/AutoUpdate - mean to say few have with autoupdate and few have with AutoAccept. AutomateProcessing : AutoAccept AllowConflicts : False BookingWindowInDays : 180 MaximumDurationInMinutes : 0 AllowRecurringMeetings : True EnforceSchedulingHorizon : True ScheduleOnlyDuringWorkHours : False ConflictPercentageAllowed : 0 MaximumConflictInstances : 0 And in One of the conference room suddenly meeting get back as well something fishy ...pls help if anybody had faced this kind of issue. thanks

Hi there, First of all, I appreciate your understanding that, by default there is no record for calendar operations; if the issue could not be reproduced, we might not be able to find out the cause. A room mailbox will never delete scheduled meeting appointments automatically. Generally we use MRM or delegate to clean/maintain the Room calendar. So, if the meeting appointment disappears from room calendar, certainly there is someone or something delete/move it. And we can enable mailbox auditing to make a record next when it occur. Refer to: http://technet.microsoft.com/en-us/library/bb124314(EXCHG.65).aspx http://technet.microsoft.com/en-us/library/ee331009(EXCHG.80).aspx Let me know if you have any other question on this thread. Fiona Liao TechNet Community Support

HI Finoa , i was expecting your reply on this .. thanks for your reply Actually this issue is not with one resource mailbox suddenly started with more conferenec rooms as well.. so thinking how come suddenly issue started, i know enable tracking can be done to know the culprit but for how many conference rooms i will do that bcoz we have an number of resource mailboxs , so is there any easy way to troubleshoot the issue here ??

Well, based on my experience, Auditting log is smaller and easier to read than store tracking log. Fiona Liao TechNet Community Support

By the way, did you change the default permission settings of the resource mailbox calendar folder? If yes, then it is best to recall the permission. Besides, you may try to find the deleted appointments from Deleted Items or Recovery Deleted Items folder. Hope it is helpful.Fiona Liao TechNet Community Support

Thanks for your udpate and information. I will keep on monitoring. Let me know if there is anything I can do for you. Fiona Liao TechNet Community Support