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Copper Contributor

Mar 22, 2024

Access to Group Calendar for external guests

Hello, We have a group with a calendar. Within this group, we have multiple users. For internal members, the calendar appears just fine in Outlook and on the web. However, for external users, the ca...

MVP

Mar 22, 2024

Externals cannot access the Group calendar directly. Subscribe them to the Group instead, so they receive the invites directly in their Inbox. Add-UnifiedGroupLinks is the cmdlet you need for that.

Revicx
Copper Contributor
Mar 23, 2024
VasilMichevHi thanks for your reply.
They are already part of the group. I actually added them with the command you suggested me to.
Here a shortened version of the Get-UnifiedGroup of the group I am talking about:
AccessType : Private
WelcomeMessageEnabled : True
GroupMemberCount : 64
GroupExternalMemberCount : 8
AllowAddGuests : True
HiddenFromExchangeClientsEnabled : False
DisplayName : Global Calendar
RecipientType : MailUniversalDistributionGroup
RecipientTypeDetails : GroupMailbox

If you need more information I will provide them 🙂
- VasilMichev
  MVP
  Mar 23, 2024
  Adding them to the Group is not enough, you need to also add them to the subscribers list:
  
  Add-UnifiedGroupLinks groupname -LinkType Subscribers -Links email address removed for privacy reasons
  - Revicx
    Copper Contributor
    Mar 25, 2024
    Thank you, VasilMichev . I followed your advice, but it's still not appearing. I double-checked using:
    
    Get-UnifiedGroupLinks -Identity $global_calendar.ObjectId -LinkType "Subscribers" | Select DisplayName
    
    The users are listed as Subscribers, but the calendar is still not visible in either Outlook Web Access or the standard Outlook client.
    
    Do you have any other suggestions?

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