Forum Discussion
Sean_Tong
Microsoft
May 16, 2023Meeting series disappeared in organizers calender
Hi,
This is Sean from Geneva Actions team, and I am writing to ask help for an issue with my calendar. A meeting series are disappeared from my calendar and I am the organizer of this meeting series. Is there a way to get it back rather than create a new series? I don't want to deprecate it because our team has many valuable discussions in that channel. Could you give me some suggestions/instructions on how to fix it?
Thank you very much!
Sean
- JamaliCopper Contributor
- Roland_TaschlerCopper ContributorOur issue seems to be solved. we discovered that in the last weeks, all of our Mailboxes were upgraded and since there the issue disappeared. With Exchange online Powershell you can check the AdminDisplayVersion of your mailboxes if it is higher than 15.20.7844.000.
You can check out this article: https://answers.microsoft.com/en-us/outlook_com/forum/all/office-365-outlook-issues-disappearing-events/2ccaf3de-2744-4f58-8148-7e43c90dd29f?page=3
- kylegeeCopper Contributor
Find the original email that was sent by the system to the attendees, to create the meeting. This could be in your Sent Items or Deleted Items. You may also be able to get one of the attendees to forward the email back to you (likely located in their Deleted Items folder) if you can't find it, although I haven't tested this. Once you have the email, right-click on it, select Move, and select Calendar. Once I did this, the meeting was back in my calendar and I had full control again. I tried everything else, this was the only thing that worked for me.
Kyle
- Roland_TaschlerCopper ContributorOur Problem is lightly different. our Calendar appointments disappear 10 - 20 seconds after you create it. It is not limited to meeting invitations. It happens with just normal calendar appointments. Those items you find then in the local Failures Folder und Syncronization issues.
- danner2295Copper ContributorThis is exactly our problem too... I hope Microsoft will solve it soon...
- InveteratCopper ContributorThe issue is still ongoing. Although some users reported the issue has not reappeared I have others that are still exhibiting the behavior even worse than before. Meeting dissappearing and generating a local sync failure.
- Roland_TaschlerCopper ContributorSame for us. Problem is still present. only workaround for us is working in Online Mode. We also created a screen video and sent it to M365 Support for review together with fiddler logs. still waiting for an answer.
- InveteratCopper ContributorOnline Mode or Owa
- CSimpson3585Copper ContributorI have a user that is having the exact same issue, they created a meeting and sent the invites and the original meeting is no longer found in their calendar although the attendees can see the original in theirs
- Harvey_S1890Copper ContributorHi,
This is Harvey. We are experiencing a similar issue with Outlook. The client has to switch to the new Outlook to accept meetings. However, the new Outlook does not support shared contacts or PST file attachments. Additionally, users are facing issues where accepted invites and saved drafts disappear. There is no permanent fix yet, so we need assistance.
Thanks,
Harvey- Jeff_CroweCopper ContributorMicrosoft won't easily tell you this, but you may be able to find those disappearing drafts. Look under the Folders icon in Outlook > Sync Issues > Local Failures. I've had a lot of users in our org experience drafts disappearing and we're finding that most of the missing drafts are in that folder. Seems to be a problem when the draft attempts to sync. But it seems they're getting moved to that folder instead of drafts.
- Roland_TaschlerCopper ContributorWhat we discovered from our tests and researching in the web. Everything what you create on the local Outlook Desktop App and for what Reason ever cannot be synched to the mailbox, ends up in the local Failures subfolder of the synchronization Issues folder. Most information you find on this issue regards a corrupt OST File. but it is not the case in our problem as we tried to recreate the OST file more times the same day. also recreating a new outlook profile with a new ost file the issue remains.
- Roland_TaschlerCopper Contributor
We have the same issue on different customers. For every customer there is a subset of about 15% of the users affected. Only Workaround for us was to work in Online Mode. The issues we are seeing are not only Meetings but also simple Calendar Appointments. We have created 6 Appointments the same day. 2 of them get synched to the mailbox and are visible on mobile phone and outook on the web. The remaining 4 appointments disappear and ends up in the local Failures Folder of Synchronization issues. The same also we saw, when users move a mail from their personal inbox to a shared mailbox. The email disappears from the in box, never shows up in the shared mailbox, and again the mail can be found in Local Failures. Next issue. when we Delete mails in the inbox, sometimes they still show up in outlook on the web and the mobile phone as unread. Basically outlook Client does not sync with Mailbox. We discovered also unplugging and replugging the network cable solves the issue for maybe a few hours to 2 days. we tried to create new OST File, new Outlook Profile, New Windows Profile several times, all with no effect. We also tried to disable antivirus software, disable outlook Add-ins, no changes. Also after a reboot the issue persist. Anyone else experiencing this Issues in Outlook Desktop app with chache mode?
- TiffanyC2145Copper Contributor
Roland_Taschler For us it's cached and online in the Outlook client. I have my users managing their calendars via OWA.
- Roland_TaschlerCopper ContributorWe expierience the Sync issues only from Desktop App to Cloud. if we create a new mail in the Web app or a new appointment in the web app, the sync to the desktop app works always. Some users need to press Update Folders or Send Receive all Folders, to see the new emails and appointments on the Desktop App.
- InveteratCopper Contributor
@RRoland_Taschleralso also drafts disappearing while the user is working on the draft?
- Roland_TaschlerCopper Contributor
Yes. when we save a email to Drafts we saw also disappearing the email and it ends up in the local Failures Folder
- thogan10Copper ContributorMy users are having the same issue, a fix I've found
-Uninstall O365 Office Suite
-Delete the contents of Registry Key: HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\Profiles
-Delete the Contents of: C:\Users\%username%\AppData\Local\Microsoft\Outlook
-Reinstall O365 suite
-Optional
Uninstall Teams Meeting Add-In if Teams integration fails for whatever reason
-Restart Teams and Outlook, Wait for Sync
I've attempted just repairing the install, leaving the install as is, running the internal update but the only thing that seems to work is the uninstall which turns in to a time sink.- TiffanyC2145Copper Contributor
Thank you! I'll give the nuclear uninstall a try on one of my users and see if I have the same good result.
I'm currently "working" with Microsoft support which is just as fun as everyone knows it is.
We're currently at the step where they ask for a useless Teams meeting with one of my users.
- FabianM1400Copper ContributorWe still having the same issue, calender items are disapearing randomly. We have find out that they are moved to the deleted items and local failures folder. We have checked: Outlook rules, delegated permissions, retention policy's, rebuild OST's, antivirus and check audit logging.
Our first thought was that it had to do with issue EX800425, but this seems to be a different problem.- InveteratCopper ContributorStill ongoing for us as well for 2 separate organizations for over a month now.
The meeting objects are basically not disappearing, they just never get created in the first place. We can see that from Get-CalendarDiagnosticObjects
There are two scenarios: When the users accept a meeting and when the user sends a meeting (organizer meeting disappears).
We can reproduce the behavior when accepting by having the Organizer forward the meeting to the attendee again, when the attendee accepts it keeps disappearing.
When Outlook syncs the operations on the Meeting object it doesn’t send the creation event of the accepted meeting and just removes the tentative one. Sometimes it even sends an Accepted notification to the Organizer, not always.
Accepting from OWA, Mobile Outlook or with Outlook in Online Mode makes the meeting stick, I presume because of the direct integration with the server instead of Syncing the cache.
We cannot reproduce the Organizer behavior on demand. Instructions we got here helped restore some of the most critical meetings.
Microsoft Premier case is open for 3 weeks, but they still refuse to admit that it’s a bug, asking us to make videos and collecting sara logs repeatedly with slight variations.
Our hope that the EX800425 would fix this was also shattered.
Outlook (Version 2404 Build 16.0.17531.20190) 64-bit Monthly Enterprise Channel
In the other Org we are on the latest outlook release.- ERojas335Copper Contributor
Inveterat Our Microsoft case about the exact same problem has been opened for 9 weeks by now and no updates from Microsoft so far, they keep saying they are not aware of more organizations having the same problem. It's so frustrating, we have the whole company affected.
Using the new Outlook helps with the problem but it adds others like no access to shared mailboxes form the app and no integration with some of the Add-ins we use, along with the users not liking the new Outlook interface.
- CannedAirCopper Contributor
Here is a PIA procedure to get the meeting back into the Organizers Calendar. It is not a fix.
- Find the missing meeting from someone internal. It doesn’t have to be the Organizer, but if it is, it hopefully is still in their Delete or Sent folder.
- Forward the meeting to yourself WITHOUT NOTIFICATIONS/ALERTS/UPDATES
- Tentatively accept the meeting, again WITHOUT NOTIFICATIONS/ALERTS/UPDATES
- Open Outlook and navigate to the Calendar view.
- Find the Meeting you want to export.
- Double-click the Meeting to open it.
- Go to the "File" Menu: In the meeting window, click on "File" in the top left corner.
- Save As: Choose "Save As" from the menu options.
- Select File Type: In the Save As dialog box, select "iCalendar Format (*.ics)" from the "Save as type" dropdown menu.
- Save the File: Choose the location where you want to save the ICS file, give it a name, and click "Save".
- Open the ICS file in notepad (or some Editor) so we can make a modification. Change the following text:
- Find and Replace - METHOD:REQUEST to METHOD:PUBLISH
- Save the modified ICS file.
- Copy/Transfer the file to the person missing the meeting.
- Double-click the ICS file on the user’s computer.
- Accept the Warning message if one appears.
- Close the appointment window WITHOUT Accepting or Tentative Response.
- Outlook will ask if you want to Save, say YES.
- InveteratCopper ContributorThanks so much, this helped a lot, but we have so many that it's not feasable to help everyone restore their meetings, as our users are not technical.
- CannedAirCopper Contributor
We have a case open with M$ support. We were able to do extensive logging and repeat the issue several times for them to have data and a lead to follow. The Outlook team deemed it an Exchange Online issue. The Exchange team hasn't responded yet.
Issue: Organizer creates or modifies a meeting and sends it. It gets deleted from the organizer's calendar (immediately), or sometimes from the attendee's calendar.
We have ruled out anything we can do with Outlook. Update, rebuild OST, new Outlook profile, etc.
There is a way to put it back in the Calendar, but nothing to prevent it... SOOOO AGRIVATING!!!
From MS:
Outlook debug team has analyzed the data collected from Ryan’s PC. Their analysis confirms my initial analysis of the data, we need to understand why the server is throwing this error on frame 922 when “Test13” gets created by Outlook.
- danner2295Copper Contributor
We have pretty much the same problem in Outlook and have activated the Outlook Cache Mode due to the Citrix WEM requirement. Have you activated this too?
Thanks!
Regards, Marko