issue with Script - Prevent guests from being added to a specific Microsoft 365 group or Microsoft Teams team

[sachiin123]

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Describe the bug
** Prevent guests from being added to a specific group | Microsoft Learn
Prevent guests from being added to a specific group
Learn how to prevent guests from being added to a specific group

In this script, Once I run this script and when I going to run script second time to revert changes - I am getting below error - attached.

I tested this in two different tenant and same error***

Script-
Connect-MgGraph

$GroupName = ""
$templateId = (Get-MgBetaDirectorySettingTemplate | ? {$_.displayname -eq "group.unified.guest"}).Id
$groupID = (Get-MgBetaGroup -Filter "DisplayName eq '$GroupName'").Id

$params = @{
templateId = "$templateId"
values = @(
@{
name = "AllowToAddGuests"
value = "true"
}
)
}

New-MgBetaGroupSetting -GroupId $groupID -BodyParameter $params

Module Version

Please run Get-Module Microsoft.Graph* after cmdlet execution and paste the output below.
If a module cannot be installed or imported, please run Get-Module -ListAvailable and paste the output.
ModuleType Version Name ExportedCommands

---

Script 1.0.0.0 ISE {Get-IseSnippet, Import-IseSnippet, New-IseSnippet}
Script 2.15.0 Microsoft.Graph.Authentication {Add-MgEnvironment, Connect-MgGraph, Disconnect-MgGraph, Get-MgContext...}
Script 2.15.0 Microsoft.Graph.Beta.Groups {Add-MgBetaGroupDriveListContentTypeCopy, Add-MgBetaGroupDriveListContentTypeCopyFromContentTypeHub, Add-MgBeta...
Script 2.15.0 Microsoft.Graph.Beta.Identity.Di... {Add-MgBetaTenantRelationshipManagedTenantAlertUserInputLog, Add-MgBetaTenantRelationshipManagedTenantManagemen...
Manifest 3.1.0.0 Microsoft.PowerShell.Management {Add-Computer, Add-Content, Checkpoint-Computer, Clear-Content...}
Manifest 3.0.0.0 Microsoft.PowerShell.Security {ConvertFrom-SecureString, ConvertTo-SecureString, Get-Acl, Get-AuthenticodeSignature...}
Manifest 3.1.0.0 Microsoft.PowerShell.Utility {Add-Member, Add-Type, Clear-Variable, Compare-Object...}
Script 4.9.1 MicrosoftTeams {Add-TeamChannelUser, Add-TeamUser, Connect-MicrosoftTeams, Disconnect-MicrosoftTeams...}

Environment Data

Please run $PSVersionTable and paste the output below. If running the Docker container image, indicate the tag of the image used and the version of Docker engine.
Name Value

---

PSVersion 5.1.22000.2713
PSEdition Desktop
PSCompatibleVersions {1.0, 2.0, 3.0, 4.0...}
BuildVersion 10.0.22000.2713
CLRVersion 4.0.30319.42000
WSManStackVersion 3.0
PSRemotingProtocolVersion 2.3
SerializationVersion 1.1.0.1

Screenshots

If applicable, add screenshots to help explain your problem.

[SeniorConsulting]

Gidday,

I can see you've been following the guide from the link you've provided. Normally cmdlets with New-Mgxxxxx are things that are creating new things (new users, new groups etc). So running that command twice would try to create two different sets of settings against the same group (which is why you're getting the error you are). So, given that you've already created the setting to set it to false, and have indicated that you're trying to toggle back, have you tried using: Update-MgBetaGroupSetting instead of New-MgBetaGroupSetting?

[microsoft-github-policy-service]

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