🔠 How can you send out invitations in multiple languages in Microsoft Teams ?


Multilingual meeting invitation management from Teams allows administrators to display participation information in meeting invitations in up to two languages across all email platforms.
This feature allows you to customize meeting invitations with the languages with which users are most familiar.
Administrators can apply a new policy in their management portal by enabling the MeetingInviteLanguages parameter in the CsTeamsMeetingPolicy at the user or group level, or for the entire organization. (global)
Source: What's New in Microsoft Teams | June 2022 - Microsoft Tech Community
Install Microsoft's PowerShell module Teams
Enter the following line PowerShell out:
Install-Module MicrosoftTeams
Update the Microsoft Teams Module via PowerShell
Update-Module MicrosoftTeams
Connecting to PowerShell
Import-Module MicrosoftTeams Set-ExecutionPolicy -ExecutionPolicy Unrestricted Connect-MicrosoftTeams

Enter a username and password of your Global Administrator or Microsoft Teams administrator.
Microsoft Teams Activate MeetingInviteLanguages with PowerShell
It is possible to customize the MeetingInviteLanguages parameter in the CsTeamsMeetingPolicy for the entire organization or for one specific user.
Connect to PowerShell through these 3 lines:
Import-Module MicrosoftTeams Set-ExecutionPolicy -ExecutionPolicy Unrestricted Connect-MicrosoftTeams
Apply a policy for the entire organization
Next, add a language to the CsTeamsMeetingPolicy.
Set-CsTeamsMeetingPolicy -Identity Global -MeetingInviteLanguages "en-US,fr-FR"

It may take several hours before the policy will become active.
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