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Sean Vriesen's avatar
Sean Vriesen
Copper Contributor
Jun 26, 2019
Solved

Cloning O365 Group Memberships

I'm interested in replicating the O365 group memberships of a given user for another user. By this I mean adding a user to the same set of groups in which a given user is currently a member. The us...
Office 365 Groups
  • VasilMichev's avatar
    VasilMichev
    Jun 27, 2019

    That depends on the specifics I guess. Here's a quick sample of what you can do with PowerShell.

     

    List all groups a given user is a member of:

    $dn = (Get-Mailbox user).DistinguishedName
Get-Recipient -Filter "Members -eq '$dn'"

    Use the above list to add another user as member:

    Get-Recipient -Filter "Members -eq '$dn'" | % { Add-DistributionGroupMember $_.Name -Member anotheruser}

    That's a really basic code though and it assumes that all the groups are distribution ones. A bit more complex one will check the actual type and use the corresponding cmdlet:

     

    $dn = (Get-Mailbox user).DistinguishedName

Get-Recipient -Filter "Members -eq '$dn'" -RecipientTypeDetails GroupMailbox | % { Add-UnifiedGroupLinks $_.Name -LinkType Member -Links anotheruser }

Get-Recipient -Filter "Members -eq '$dn'" -RecipientTypeDetails MailUniversalDistributionGroup | % { Add-DistributionGroupMember $_.Name -Member anotheruser }

     

VasilMichev's avatar
VasilMichev
MVP
Jun 27, 2019

That depends on the specifics I guess. Here's a quick sample of what you can do with PowerShell.

 

List all groups a given user is a member of:

$dn = (Get-Mailbox user).DistinguishedName
Get-Recipient -Filter "Members -eq '$dn'"

Use the above list to add another user as member:

Get-Recipient -Filter "Members -eq '$dn'" | % { Add-DistributionGroupMember $_.Name -Member anotheruser}

That's a really basic code though and it assumes that all the groups are distribution ones. A bit more complex one will check the actual type and use the corresponding cmdlet:

 

$dn = (Get-Mailbox user).DistinguishedName

Get-Recipient -Filter "Members -eq '$dn'" -RecipientTypeDetails GroupMailbox | % { Add-UnifiedGroupLinks $_.Name -LinkType Member -Links anotheruser }

Get-Recipient -Filter "Members -eq '$dn'" -RecipientTypeDetails MailUniversalDistributionGroup | % { Add-DistributionGroupMember $_.Name -Member anotheruser }

 

MarcoCastro's avatar
MarcoCastro
Copper Contributor
Feb 12, 2021

VasilMichev those scripts you provided, after the first one is used, you say 

"Use the above list to add another user as member:" 

does that second one mean that if the first user has, say, 20 groups, will the second user get added to those 20 groups.

I am just very worried about typing in a command that will alter the system in a way that i did not intend. Thank you. 

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