Meetings - Sorry, we couldn't get your meeting details.

[Stephan Schaare]

Dear Community,

im searching for some help with an issue in Microsoft Teams. Our customer is running Teams and Exchange in hybrid mode. 

The mailbox of one test user is hosted on-prem. 

If i click on "Meetings" in the Teams client or Teams on the web on the left side i recieve the following error message:

"Sorry, we couldn't get your meeting details."

I just found this post but the solution will not work for us :)

https://techcommunity.microsoft.com/t5/Microsoft-Teams/Sorry-we-couldn-t-get-your-meeting-details/m-...

In the developer tools i can see that this request will be send:

https://teams.microsoft.com/api/mt/emea/beta/me/calendarEvents?StartDate=Mon,%2007%20Jan%202019%2023...

Here i got a 503 status code. If i open this url directly in the browser i recieve this message:

{"message":"Authorization has been denied for this request."}

Okay an Authorization is denied. But currently i don't have an idea where the request is denied.

With an Exchange Online mailbo i do not have this kind of issue.

Thanks to anyone for your support in advance!

[#2]

Hi!

What version of Exchange is it on prem?

https://docs.microsoft.com/en-us/microsoftteams/known-issues#meetings

Anything less than Exchange 2016 CU3 then meeting functionality is known to not work. Workaround is to upgrade to this version for the on premises deployment.

Best, Chris

[#3]

Here’s also the documentation from MS regarding exchange and Teams:
https://docs.microsoft.com/en-us/microsoftteams/exchange-teams-interact

[#4]

Hi Chris,

thank you!
It's Exchange 2016 CU11.

OAuth is also configured:
https://docs.microsoft.com/en-us/exchange/configure-oauth-authentication-between-exchange-and-exchan...

BR, Stephan

[#5]

Hi Stephen,

I saw this article. It says in the article that if you are doing it above 2016 CU5 to do it through the Hybrid Configuration Wizard. Just to check you’ve done that?

If so, I would recommend raising it to Microsoft support who can look into your configuration. If you do this, it would be great if you let us know the root cause so the community can gain insight for future instances.

Best, Chris

[#6]

Hi Chris,

jep they configrued it via the Configuration Wizard. And they run EX 2016 with CU 11.
Currently this error is shown when clicking on "Meeting" in Microsoft Teams:
"Mailbox to not exist for this team"
In the LOG of the request we find this one:

Unable to load calendar events. Error: {"response":{"errorCode":"ErrorNonExistentMailbox","message":"Error fetching appointments from EWS. : ResponseCode: NoError, ErrorCode: ErrorNonExistentMailbox, ErrorMessage: Mailbox does not exist.ResponseCode: NoError, ErrorCode: ErrorNonExistentMailbox, ErrorMessage: Mailbox does not exist."},"status":400,"_codeEnum":0,"_code":"ErrorNonExistentMailbox","_message":"Error fetching appointments from EWS. : ResponseCode: NoError, ErrorCode: ErrorNonExistentMailbox, Erro...
2019-01-16T14:03:34.065Z Err CalendarService: Error while fetching calendar events {"response":{"errorCode":"ErrorNonExistentMailbox","message":"Error fetching appointments from EWS. : ResponseCode: NoError, ErrorCode: ErrorNonExistentMailbox, ErrorMessage: Mailbox does not exist.ResponseCode: NoError, ErrorCode: ErrorNonExistentMailbox, ErrorMessage: Mailbox does not exist."},"status":400,"_codeEnum":0,"_code":"ErrorNonExistentMailbox","_message":"Error fetching appointments from EWS. : ResponseCode: NoError, ErrorCode: ErrorNonExiste...
2019-01-16T14:03:34.064Z Inf IExceptionUtilityService: Logging success for status code 400
2019-01-16T14:03:34.064Z War HTTP request DM calendarEvents GET failed: GET "https://teams.microsoft.com/api/mt/emea/beta/me/calendarEvents?StartDate=Tue, 08 Jan 2019 23:00:00 GMT&EndDate=Tue, 29 Jan 2019 23:00:00 GMT", status: 400, response: {"errorCode":"ErrorNonExistentMailbox","message":"Error fetching appointments from EWS. : ResponseCode: NoError, ErrorCode: Erro…, errorCode: ErrorNonExistentMailbox, requestId: undefined, correlationId: undefined

Will check later if i can find something about this.

Thank you,
Stephan

[#7]

Sure. I guess before submitting it to support I would ask if the end result is that users will be migrated to Exchange Online? If all users are then it would be a case of moving over the user experiencing the issue. But, obviously if Exchange remains in hybrid for a long period it’ll mean a fix

Teams would have created the Office 365 group and so there should be a mailbox in existence in the 365 environment. Can you confirm this?

Best, Chris



Best, Chris

[#8]

Dear @Stephan Schaare did you found solution for this issue?

Regards,

Przemek

[#9]

Hi @Przemyslaw_Obiala,

nope, the customer decided to do the migration of the mailboxes to Exchange online earlier and this "fixed" the issue.

Regards,

Stephan