Access to Group Calendar for external guests

[Revicx]

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 calendar doesn't appear at all in their Outlook nor on the web.

We are looking for a way for external members of the group to access the calendar as well.

Edit: here the output of the Get-UnifiedGroup Command:

AccessType : Private
WelcomeMessageEnabled : True
GroupMemberCount : 64
GroupExternalMemberCount : 8
AllowAddGuests : True
HiddenFromExchangeClientsEnabled : False
DisplayName : Global Calendar
RecipientType : MailUniversalDistributionGroup
RecipientTypeDetails : GroupMailbox

[#2]

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.

[#3]

@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 🙂

[#4]

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

[#5]

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?

[#6]

I never said the Calendar will appear for them, that's not possible. The cmdlet above simply makes any calendar invites sent to the group be forwarded to their personal mailboxes.