Import-Module ExchangeOnlineManagement
Connect-ExchangeOnline -UserPrincipalName <user@domain.nl>
// Replace <user@domain.nl> with the name of your admin account
Set-UnifiedGroup -Identity "<Group Name>" -HiddenFromExchangeClientsEnabled:$false
// Replace <Group Name> with the name of your Teams group
Wanneer Office 365-groepen niet in Outlook verschijnen
Office 365 / Teams-groepen zichtbaar maken in Outlook via Exchange Online PowerShell.