Nested Microsoft 365 Groups

Question

Nested Microsoft 365 Groups

Nicolas Pütz 1

Hi,

we are using MS Teams in our organisation. We have created multiple teams sites with an associated Microsoft 365 group. Now, the department lead would like to have one email address to communicate to all members of these teams groups.

however, i have not found a way to create a nested Microsoft 365 group. when i try to add the existing M365 groups as members, they are not provided in the search field.

what are our options here to create a nested group? I tried distribution lists and M365 groups, but both are not working.

Dmytro Kramar 6 Reputation points

2022-10-14T17:45:27.6+00:00

My solution:

For two MS Teams with emails team1@xyz .com ans team2@xyz .com lets create a dynamic distribution group named teams_dl based on group membership:

New-DynamicDistributionGroup -Name "teams_dl" -RecipientFilter "(MemberOfGroup -eq 'DN of Team 1') -or (MemberOfGroup -eq 'DN of Team 2')"

To get a DN we need to execute this:

Get-EXORecipient -Identity "Name of Team" |fl

To check the membership of group:

$ddl = Get-DynamicDistributionGroup -Identity "Name of team"

Get-Recipient -RecipientPreviewFilter ($ddl.RecipientFilter)

It will show the members of both Teams

2 answers

Your answer

Dmytro Kramar 6 Reputation points

2022-10-14T17:45:27.6+00:00

My solution:

For two MS Teams with emails team1@xyz .com ans team2@xyz .com lets create a dynamic distribution group named teams_dl based on group membership:

New-DynamicDistributionGroup -Name "teams_dl" -RecipientFilter "(MemberOfGroup -eq 'DN of Team 1') -or (MemberOfGroup -eq 'DN of Team 2')"

To get a DN we need to execute this:

Get-EXORecipient -Identity "Name of Team" |fl

To check the membership of group:

$ddl = Get-DynamicDistributionGroup -Identity "Name of team"

Get-Recipient -RecipientPreviewFilter ($ddl.RecipientFilter)

It will show the members of both Teams

Answer 1

Kai Yao 37,796 Moderator

Hi @Nicolas Pütz

According to this link: Compare groups

So it may not be possible to achieve this goal.

In addition, based on my test, though it is possible to add Microsoft 365 Groups as members of a distribution list via EXO Powershell:

Add-DistributionGroupMember -Identity "DL" -Member "365 group"

the message sent to the distribution list could not be delivered to the Microsoft 365 group mailbox or member mailboxes correctly.

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Kai Yao 37,796 Reputation points Moderator

2022-03-03T09:07:17.05+00:00

Hi @Nicolas Pütz

Just checking in to see if above information was helpful.
Please let us know if you would like further assistance.
Bruce Johnson 0 Reputation points

2023-03-06T16:20:50.7266667+00:00

And that is why Office 365 is not a great enterprise email product. Having to maintain Microsoft 365 groups and a duplicate Distribution Lists to accomplish the most basic email list function is crazy.

Answer 2

Andy David - MVP 160.4K MVP Volunteer Moderator

From what I have seen you can no nest groups into 365 Groups - even in powershell.
It throws an error:

he user couldn't be found for mailbox Identity:'XXXXXXXX isn't a mailbox user..

CategoryInfo : NotSpecified: (:) [Add-UnifiedGroupLinks], MailboxUserNotFoundException
FullyQualifiedErrorId : [Server=BYAPR05MB4071,RequestId=5ca93515-6dae-471a-910f-6c26c3086fda,TimeStamp=2/28/2022
11:56:08 AM] [FailureCategory=Cmdlet-MailboxUserNotFoundException] 55F2640D,Microsoft.Exchange.Management.Recipie
ntTasks.AddUnifiedGroupLinks
PSComputerName : outlook.office365.com

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