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Julian12's avatar
Julian12
Brass Contributor
Apr 23, 2020

Teams calendar not syncing with exchange on-prem calendar

Hello, I have a problem with the calendar sync between exchange online/Teams for a customer. I configured Azure AD Connect with the hybrid option and users are synced to the cloud and licensed with...
Calendar
exchange
OAuth
Sync
teams
ChristianBergstrom's avatar
ChristianBergstrom
Silver Contributor
Apr 27, 2020

Julian12 Thanks for that! I actually reached out to another member and he suggested that you should raise a ticket with Microsoft support. I was about to send you a message regarding that.

Julian12's avatar
Julian12
Brass Contributor
Apr 27, 2020

ChristianBergstromPer chance do ou know how I can move this thread to the exchange community?
I figured out that the exchagne server is simply not syncing the calender objects to office 365, exchange activesync service should do this instantly but nothing happens.

  • Julian12's avatar
    Julian12
    Brass Contributor
    Jun 05, 2020

    Hi,

    I finally solved the main problem, the issue was caused by O365 E3 Test licenses which setup a korrupt mailbox it seems. After desyncing and deleting the affected user accounts, sync was working normally.

    Unfortunately all private chat is gone too with the user deletion and so I'm currently searching for a Teams chat history restore but will open a new thread for this issue.

     

    Kind Regards

  • ChristianBergstrom's avatar
    ChristianBergstrom
    Silver Contributor
    Apr 27, 2020
    Hello again, EAS? Now you’re making me even more confused. As the cert service failed and you’re experiencing several issues I highly recommend support from Microsoft senior engineers. Ask the support agent to escalate your ticket for proper assistance. Hope it gets sorted!