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on-prem meeting rooms no longer accepting meetings from office 365 users, and not sending meeting accpetance email to user RRS feed

  • Question

  • Hello, 

    We have Exchange 2013 on-prem in full hybrid mode with Exchange online, leveraging Centralized Mailflow. We also leverage AAD Connect to sync identities from on-prem AD to Office 365. Today, all of a sudden, users migrated to Office 365 are no longer able to book meetings against on-prem meeting rooms. all meeting rooms are still located in on-premise. When user sends a meeting invite to the meeting room, they do not receive an acceptance email from the meeting room, and the meeting does not appear on the meeting room calendar. I have re-ran the Hybrid config wizard, and also ran an initial sync in AAD connect...no luck.

    I've verified that the value -AutomateProcessing is set to AutoAccept on these meeting rooms, and i've also tested setting the value: ProcessExternalMeetingMessages to True, but still no luck

    I logged into the meeting room mailbox via OWA, and see meeting requests in the rooms inbox, message that displays is: “Your calendar couldn’t be checked to see whether this event conflicts with other events”

    I've also followed this article, and verified all is correct in the calendar settings of the meeting room mailbox:

    https://jasoncoltrin.com/2019/01/30/office365-resource-room-calendar-not-processing-accepting-meeting-requests/

    From on-prem user to on-prem meeting room...all functions as expected. Please advise on how this can be resolved... issue seems to be with the hybrid side. (hybrid mailflow works fine, as well as free/busy across the hybrid)

    I also noticed, when creating meeting invites from office 365, the Room List no longer shows available meeting rooms. seems to be related to above issue. 

    Thanks in advance


    Friday, May 17, 2019 1:53 AM

Answers

All replies

  • Hi WinMo321,

    Do all room mailboxes have this issue? or just a specific one?

    As a test, you can create a new test room mailbox in on-premise exchange server, after syncing, let a migrated user send a meeting invite to this room mailbox to check again.

    For room list does not show available meeting rooms issue, you can refer to following articles and check if any helps:

    Room Finder in Outlook doesn't display any conference rooms when a user creates a meeting

    Office 365 Hybrid – On Premise Room Mailboxes not available in OWA


    Best Regards,
    Niko Cheng


    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.


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    Monday, May 20, 2019 7:39 AM
  • Hi WinMo321,

    I'm just writing to check how's everything going? If you have any questions or needed further help on this issue, please feel free to post back. If the issue has been resolved, please mark the helpful replies as answers, this will make answer searching in the forum easier and be beneficial to other community members as well.

    Thanks for your understanding.


    Best Regards,
    Niko Cheng


    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.


    Click here to learn more. Visit the dedicated forum to share, explore and talk to experts about Microsoft Teams.

    Friday, May 24, 2019 9:16 AM
  • I had a similar issue and did a quick write up:

    https://itinvt.com/index.php/2019/11/30/broken-room-mailboxes-and-finder-in-hosted-exchange/

    Sunday, December 1, 2019 2:21 AM