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MS Teams Meeting Failed between boss and PA

Ramki 816 Reputation points
2021-05-21T12:08:38.583+00:00

hello Team

am facing the issue where PA is trying to create a teams meeting from the BOSS calendar (Onprem user1)

We have hybrid environment, and both the malboxes are available on exchnage 2016 mailbox

Onprem user 1 gave a mailbox calendar delegation access Onprem user 2
• Onprem user 2 can able to access the calendar of On-prem user 1
• However when on-prem user 2 create a MS Teams meeting from the on-prem user1 calendar , He/she got the below “ MICROSOFT TEAMS , Sorry but we can’t connect to the server right now. Please Try again later”.

![98671-image.png]1

This is default behhaviour, how it can be work if we enable oauth between exchnage and SFB online

i had followed the below link and still not working

https://learn.microsoft.com/en-us/skypeforbusiness/deploy/integrate-with-exchange-server/oauth-with-online-and-on-premises

is that am something need to in EWS ? on organization and mailbox side?

Get-OrganizationConfig | Select-Object EWS*

EwsAllowEntourage :
EwsAllowList :
EwsAllowMacOutlook :
EwsAllowOutlook :
EwsApplicationAccessPolicy :
EwsBlockList :
EwsEnabled :

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Microsoft Exchange Online Management
Microsoft Exchange Online Management
Microsoft Exchange Online: A Microsoft email and calendaring hosted service.Management: The act or process of organizing, handling, directing or controlling something.
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Exchange Server Management
Exchange Server Management
Exchange Server: A family of Microsoft client/server messaging and collaboration software.Management: The act or process of organizing, handling, directing or controlling something.
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Accepted answer
  1. Ashok M 6,511 Reputation points
    2021-05-23T06:05:40.827+00:00

    Hi @Ramki ,

    What is the current CU version of Exchange 2016?
    Does both the users are synced to Azure Active directory using AD Connect?
    Are Teams license assigned to both the users?
    Is the original user able to create teams meeting?
    Are Autodiscover and EWS published externally?
    Is Exchange Hybrid Deployment feature in Azure AD Connect is set?

    98820-image.png

    https://learn.microsoft.com/en-us/microsoftteams/exchange-teams-interact#requirements-to-create-and-view-meetings-for-mailboxes-hosted-on-premises

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  1. JimmyYang-MSFT 50,446 Reputation points Microsoft Vendor
    2021-05-24T06:54:28.637+00:00

    Hi @Ramki

    Do you mean you want to delegate for someone to schedule Teams meeting?

    To enable the calendar delegation for these users:

    1) The Teams Scheduling add-in for Outlook requires Exchange 2013 CU19 or later when scheduling a meeting on behalf of someone else. This is to support the unauthenticated discovery of the mailbox by our service to check delegate permissions against the delegator mailbox.

    2)You must also complete steps as described in Configure Integration and OAuth between Skype for Business Online and Exchange Server;

    If the response is helpful, please click "Accept Answer" and upvote it.

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