Scenario:
I create a reoccurring meeting (through Outlook ) to happen every . I change one occurrence of the meeting say.. next to be changed to next .
Everything else should still be on .
I send the Meeting Update for that one change.
Client’s accept the change.
On client’s calendar – the original meeting day is still there as well as the one. So basically – the client will have both a and meeting on the next week for the same meeting.
Any ideas why this happens? It doesn’t happen all the time but it has happened several times so far.
Thanks in advance for any help! Much appreciated.
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Hi Jacky,
Would you please let me know?
1. Please let me know your Exchange server and Outlook Client version.
2. Whether the issue always occurs on the specific users?
3. Whether the users who encountered the problem use Blackberry or other Mobile Device?
4. Whether the users who encountered the problem have delegate configured.
I would like to explain the issue mostly occurs because the PR_OWER_APPT_ID property is incorrect on meeting update message or the Calendar item in attendee’s mailbox. I would like to explain Outlook use the the property to associate the Meeting update message with Calendar Item in calendar folder.
When an user receives a meeting request message, Outlook will attempt to search Calendar folder for Calendar Item which has same PR_OWER_APPT_ID property as the meeting request message. If no calendar item can be found, Outlook will create a new one.
You can use MFCMapi tool to check the PR_OWER_APPT_ID property of the meeting update message and the Recurrence Calendar items in the calendar folder.
~~~~~~~~~~~~~~~~
Mike Shen
TechNet Subscriber Support
in forum
If you have any feedback on our support, please contact
tngfb@microsoft.com
~~~~~~~~~~~~~~~~
Mike Shen
, 04, 10:24 AM
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Hi Jacky,
Thanks for your response.
I would like to explain that the issue may related to serveral factors such as Mobile Device, third-party add-ins in Outlook which may access the user’s calendar folder and modify the calendar items.
In addition, I would like to explain there is a known issue that
Entourage was found to be changing the values of the PR_OWNER_APPT_ID to -1 and suspected for creating a duplicate appointment.
Regarding Palm, I suggest you read following KB to check it related to your problem:
Duplicate appointments appear in Outlook 2003 when you synchronize with a Palm Treo 650 handheld computer
http://support.microsoft.com/kb/916514/en-us
In addition, would you please let me know whether the specific users who encountered the problem is the attendee of the meeting? Please also let me know how frequently the issue occurs.
For your reference:
How to troubleshoot missing and duplicate appointments in Outlook
http://support.microsoft.com/kb/890436/en-us
Thanks,
Mike
Mike Shen
, 04, 10:24 AM
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Are you sure that you are running the latest SP and hotfixes?
also try launching OL with /cleanfreebusy switch
Vinod |CCNA|MCSE 2003 +Messaging|MCTS|ITIL V3|
………………………………………………..
Hi Jacky,
Would you please let me know?
1. Please let me know your Exchange server and Outlook Client version.
2. Whether the issue always occurs on the specific users?
3. Whether the users who encountered the problem use Blackberry or other Mobile Device?
4. Whether the users who encountered the problem have delegate configured.
I would like to explain the issue mostly occurs because the PR_OWER_APPT_ID property is incorrect on meeting update message or the Calendar item in attendee’s mailbox. I would like to explain Outlook use the the property to associate the Meeting update message with Calendar Item in calendar folder.
When an user receives a meeting request message, Outlook will attempt to search Calendar folder for Calendar Item which has same PR_OWER_APPT_ID property as the meeting request message. If no calendar item can be found, Outlook will create a new one.
You can use MFCMapi tool to check the PR_OWER_APPT_ID property of the meeting update message and the Recurrence Calendar items in the calendar folder.
~~~~~~~~~~~~~~~~
Mike Shen
TechNet Subscriber Support
in forum
If you have any feedback on our support, please contact
tngfb@microsoft.com
~~~~~~~~~~~~~~~~
Mike Shen
, 04, 10:24 AM
………………………………………………..
Thanks Mike,
1. Exchange and Outlook 12.0 SP2
2. It does occur on specific users
3. This is an interesting topic because I have done some research over the internet and it seems that many Palm device owners suffer from the same problem (with no resolve) and consequently my co-worker also has a Palm.
4. There are no delegates configured (that was the first thing I checked for).
I will look into the PR_OWER_APPT_ID.
………………………………………………..
Hi Jacky,
Thanks for your response.
I would like to explain that the issue may related to serveral factors such as Mobile Device, third-party add-ins in Outlook which may access the user’s calendar folder and modify the calendar items.
In addition, I would like to explain there is a known issue that
Entourage was found to be changing the values of the PR_OWNER_APPT_ID to -1 and suspected for creating a duplicate appointment.
Regarding Palm, I suggest you read following KB to check it related to your problem:
Duplicate appointments appear in Outlook 2003 when you synchronize with a Palm Treo 650 handheld computer
http://support.microsoft.com/kb/916514/en-us
In addition, would you please let me know whether the specific users who encountered the problem is the attendee of the meeting? Please also let me know how frequently the issue occurs.
For your reference:
How to troubleshoot missing and duplicate appointments in Outlook
http://support.microsoft.com/kb/890436/en-us
Thanks,
Mike
Mike Shen
, 04, 10:24 AM
………………………………………………..
Some of the users who encounter the problem use Windows Mobile devices with ActiveSynch, so the HotSynch troubleshooter won’t help.
Entourage is not used in this company – only Outlook.
All the users who encounter the problem are attendees of the meeting and occurs every time the person sends a meeting update.
I haven’t completely tried all the trouble-shooting yet – but I plan to check on all the attendees’ synchronization settings on their phone with exchange soon.
I will post back when I have more information.
Sincerely,
Jacky
