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The function cannot be performed because the message has been changed. Office 2016 RRS feed

  • Question

  • Hi All,

    Got an issue I haven't seen before. A staff member here is getting a dozen emails from the Sync log saying that "The function cannot be performed because the message has been changed.". We have made sure that the Outlook client is fully updated to the latest current version. Here is a sample log: 

    09:13:48 Synchronizer Version 16.0.8326

    09:13:48 Synchronizing Mailbox '**** *****'

    09:13:48 Synchronizing Hierarchy

    09:13:49 Synchronizing server changes in folder 'Calendar'

    09:13:49 Downloading from server '<Link>'

    09:13:49 Error synchronizing folder

    09:13:49                               [80040109-50A-80040109-560]

    09:13:49                               The function cannot be performed because the message has been changed.

    09:13:49                               Microsoft Exchange Information Store

    09:13:49                               For more information on this failure, click the URL below:

    09:13:49                               

    09:13:49 Synchronizing server changes in folder 'Contacts'

    09:13:49 Downloading from server '<Link>'

    09:13:49 Synchronizing server changes in folder 'Drafts'

    09:13:49 Downloading from server '<Link>'

    09:13:49 Synchronizing server changes in folder 'Clutter'

    09:13:49 Downloading from server '<Link>'

    09:13:49 Synchronizing server changes in folder 'Deleted Items'

    09:13:49 Downloading from server '<Link>'

    09:13:49 Synchronizing server changes in folder 'Junk Email'

    09:13:49 Downloading from server '<Link>'

    09:14:10 Downloading from server '<Link>'

    09:14:10 Done

    09:15:03 Microsoft Exchange offline address book

    09:15:03 Download successful

    It always happens right after the Calendar sync and doesn't tend to happen when he is sending emails so I think  it might be his Calendar causing the issue. What can I do to further troubleshoot this? We use Office 365 as our email provider. Only seems to happen on his Workstation. 

    • Moved by Steve Fan Monday, September 18, 2017 7:29 AM Move to dedicated Outlook forum
    Friday, September 15, 2017 8:02 AM

All replies

  • Hi,

    From the log, it looks the issue happens when syncing the 'Calendar' folder. We may first try to clear cache for the Calendar folder and then see whether this issue continuous. To do this, right click on the 'Calendar' folder, select Properties. Under General tab, click 'Clear Offline Items' button. After that, manually click Send/Receive All Folders button. 

    If above doesn't help, we may also try troubleshoot the issue via the Calendar Checking Tool and see whether it helps. For your convenience:

    https://support.microsoft.com/en-us/help/2678030/information-about-the-calendar-checking-tool-for-outlook-calcheck

    Regards,

    Steve Fan


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    • Proposed as answer by Steve Fan Friday, September 22, 2017 9:27 AM
    Monday, September 18, 2017 7:24 AM