Hello, one of our users is stating that when they make changes to meeting dates and/or times, a few minutes to a day later, the changes revert to the original date and/or time. Additionally, they will occasional also receive an email stating "Your meeting was found to be out of date and has been automatically updated."

This customer is on a Win7 client and running Outlook 2007. Both the OS and Office/Outlook are completely patched as of 08/12/2014. There are also a couple of iOS devices that access the Exchange account and both are running the latest version of iOS according to the customer.

The customer states that this behavior began immediately following our migration from Exchange 2007 to 2013 a couple of months back. I am not able to see any reason for this at the server level. We also do not currently have any other users complaining of the same issue. I am unable to replicate the issue using my account. I suspect that it is isolated to this single user at this point.

We are running Exchange v15, build 847.32.

Has anyone experienced the same? Thanks in advance for any input.

Hi,

I noticed that there are some third-party devices used to sync and manage Exchange calendar. Usually, some issues may be caused by some devices used for Exchange ActiveSync service. We can try to disable the devices and check whether the issue persists. Here is a KB descripted Current issues with Microsoft Exchange ActiveSync and third-party devices:

http://support.microsoft.com/kb/2563324

If the issue is not caused by any third-party programs, please check the time zone from Outlook client, local machine, third-party devices and Outlook Web App. Please also change a computer then send test meeting updates to check if the issue continues.

Regards,

Hi Winnie,

Thank you for the response. I had the customer verify that all dates, times, and time zones are set accurately for all computers and devices that access his Exchange account. He states that they were all accurate at the time of the latest incident.

I have reviewed the KB you cited. The 3rd party devices in question are an iPhone and an iPad. Both are up on the latest iOS release. I am not finding anything else relevant in the KB, specific to this issue. Am I overlooking something?

Again, thank you for the assistance.

Regards,

Ian

Hi lan,

Since the issue only happens to one specific user, it can also be caused by any third-party add-ins or programs in Outlook or the local computer.

Please close Outlook and make calendar items changes from OWA then check whether the issue happens in OWA. If the issue doesn't occur in OWA, please restart Outlook in safe mode and make calendar changes to have a try. If it persists in safe mode, also try to change a computer with this account to check whether the issue can be repruduced for test meeting.

Regards,

Hi Lan,

Any updates?

If there is anything unclear about my posting, please feel free to let me know.

Regards,

Was this ever resolved? I am currently having the issue with one of my users as well.  Based on a thread at the Office365 community (h t t p://community.office365.com/en-us/f/158/t/272505.aspx) I believe this to be an issue with iOS 8.  Of particular note, the affected user is our only iOS 8 user with the Calendar Time Zone override enabled and she has been travelling the past few weeks.

If it is iOS related, hopefully it will be resolved by Apple soon but I'd like to at least get confirmation if this is, in fact, the case.

need a solution here guys. having the same issue within our organisation. emails get sent at random times and its hard to reconstruct the scenario any ideas on what tests we can run to troubleshoot?

Has it actually been confirmed by Microsoft and Apple that its an iOS issue? confirmed that it only happens to users with ActiveSync enabled? 

User is running Win8.1, Outlook 2013, cached exchange mode enabled, ActiveSync enabled, BES enabled.

We are using O365 Enterprise Service (Cloud) 

Appointments are created on behalf of User (PA for the boss). 

This sounds like the known issue with Apple iOS 7/8 (Microsoft KB3015401)

One of the problems is deleting/changing a meeting on the iPhone. It also can be an issue with delegates that have full access creating/editing meetings (change access to send on behalf )

Thanks Webqueen2015!

An update from our side:

users havent been getting that meesage now (perhaps one or two since my last post, although they may have gotten it but not reported it to IT). Dont think users updated to iOS 8.3 though.

if i come across this again, ill inform users that upgrading to iOS 8.3 may resolve the issue.

thanks all!