New-MgGroup not working using BodyParameter (asking for mailEnabled value despite being set)

[cyrkin]

Describe the bug

I am trying to create a new Microsoft 365 Group (before converting it to a Teams team).

I am trying to create the group using the New-MgGroup Cmdlet along with the -BodyParameter parameter, especially to select the group owner.

The same code used to work in version 2.25 and below, suddenly stopped working in 2.26.1. I installed v2.25 back and it works again with this version.

Expected behavior

PS> New-MgGroup  -BodyParameter $params

DisplayName            Id                                   MailNickname              Description                                                                            GroupTypes
-----------            --                                   ------------              -----------                                                                            ----------
TEST ORG 123 #groupId# test-org-123 test {Unified}

How to reproduce

$params = @{
    DisplayName = "TEST ORG 123"
    MailEnabled = $False
    MailNickName = "test-org-123" 
    SecurityEnabled  = $True
    GroupTypes = "Unified" 
    Description = "Test"
}
New-MgGroup -BodyParameter $params

Throws the below error :

New-MgGroup : A value is required for property 'mailEnabled' of resource 'Group'.
Status: 400 (BadRequest)
ErrorCode: Request_BadRequest
Date: 2025-03-06T15:52:06
Transfer-Encoding             : chunked
Vary                          : Accept-Encoding
Strict-Transport-Security     : max-age=31536000
request-id                    : 27bd77e5-6831-4dcc-ad57-25134d85e6d3
client-request-id             : 32594ca4-9a5f-48db-9641-e65161ff1234
x-ms-ags-diagnostic           : {"ServerInfo":{"DataCenter":"France Central","Slice":"E","Ring":"5","ScaleUnit":"005","RoleInstance":"PA3PEPF0000F729"}}
x-ms-resource-unit            : 1
Cache-Control                 : no-cache
Date                          : Thu, 06 Mar 2025 15:52:05 GMT
Au caractère Ligne:1 : 1
+ $group = New-MgGroup -BodyParameter $params
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation : ({ Headers = , b...oftGraphGroup }:<>f__AnonymousType2`2) [New-MgGroup_Create], Exception
    + FullyQualifiedErrorId : Request_BadRequest,Microsoft.Graph.PowerShell.Cmdlets.NewMgGroup_Create

SDK Version

2.26.1

Latest version known to work for scenario above?

2.25

Known Workarounds

It works this way :
New-MgGroup @params

But then I can't use the following parameter in the set :

"[email protected]" = @(
    "https://graph.microsoft.com/v1.0/users('#userId#')"
)

Debug output

Click to expand log

DÉBOGUER : [CmdletBeginProcessing]: - New-MgGroup begin processing with parameterSet 'Create'.

DÉBOGUER : [Authentication]: - AuthType: 'AppOnly', TokenCredentialType: 'ClientCertificate', ContextScope: 'Process', AppName: 'CEA Teams creation'.

DÉBOGUER : [Authentication]: - Scopes: [TeamSettings.ReadWrite.All, User.ReadBasic.All, Teamwork.Migrate.All, Sites.ReadWrite.All, Team.Create, Group.ReadWrite.All].

DÉBOGUER : ============================ HTTP REQUEST ============================

HTTP Method:
POST

Absolute Uri:
https://graph.microsoft.com/v1.0/groups

Headers:
FeatureFlag                   : 00000003
Cache-Control                 : no-store, no-cache
User-Agent                    : Mozilla/5.0,(Windows NT 10.0; Microsoft Windows 10.0.19045; fr-FR),PowerShell/5.1.19041.5486
SdkVersion                    : graph-powershell/2.26.1
client-request-id             : 65fa1cb0-5fbb-4ffa-a03b-55edfdca6c49

Body:
{
  "description": "Test",
  "displayName": "TEST ORG 123",
  "groupTypes": [
    "Unified"
  ],
  "mailNickname": "test-org-123"
}

DÉBOGUER : ============================ HTTP RESPONSE ============================

Status Code:
BadRequest

Headers:
Transfer-Encoding             : chunked
Vary                          : Accept-Encoding
Strict-Transport-Security     : max-age=31536000
request-id                    : f30ba99b-a74a-4ed1-8bd9-b84f40e3a541
client-request-id             : 65fa1cb0-5fbb-4ffa-a03b-55edfdca6c49
x-ms-ags-diagnostic           : {"ServerInfo":{"DataCenter":"France Central","Slice":"E","Ring":"5","ScaleUnit":"001","RoleInstance":"PA2PEPF00004EB9"}}
x-ms-resource-unit            : 1
Cache-Control                 : no-cache
Date                          : Thu, 06 Mar 2025 16:02:32 GMT

Body:
{
  "error": {
    "code": "Request_BadRequest",
    "message": "A value is required for property 'mailEnabled' of resource 'Group'.",
    "innerError": {
      "date": "2025-03-06T16:02:33",
      "request-id": "f30ba99b-a74a-4ed1-8bd9-b84f40e3a541",
      "client-request-id": "65fa1cb0-5fbb-4ffa-a03b-55edfdca6c49"
    }
  }
}


A value is required for property 'mailEnabled' of resource 'Group'.

Status: 400 (BadRequest)
ErrorCode: Request_BadRequest
Date: 2025-03-06T16:02:33

Headers:
Transfer-Encoding             : chunked
Vary                          : Accept-Encoding
Strict-Transport-Security     : max-age=31536000
request-id                    : f30ba99b-a74a-4ed1-8bd9-b84f40e3a541
client-request-id             : 65fa1cb0-5fbb-4ffa-a03b-55edfdca6c49
x-ms-ags-diagnostic           : {"ServerInfo":{"DataCenter":"France Central","Slice":"E","Ring":"5","ScaleUnit":"001","RoleInstance":"PA2PEPF00004EB9"}}
x-ms-resource-unit            : 1
Cache-Control                 : no-cache
Date                          : Thu, 06 Mar 2025 16:02:32 GMT


New-MgGroup : A value is required for property 'mailEnabled' of resource 'Group'.
Status: 400 (BadRequest)
ErrorCode: Request_BadRequest
Date: 2025-03-06T16:02:33
Headers:
Transfer-Encoding             : chunked
Vary                          : Accept-Encoding
Strict-Transport-Security     : max-age=31536000
request-id                    : f30ba99b-a74a-4ed1-8bd9-b84f40e3a541
client-request-id             : 65fa1cb0-5fbb-4ffa-a03b-55edfdca6c49
x-ms-ags-diagnostic           : {"ServerInfo":{"DataCenter":"France Central","Slice":"E","Ring":"5","ScaleUnit":"001","RoleInstance":"PA2PEPF00004EB9"}}
x-ms-resource-unit            : 1
Cache-Control                 : no-cache
Date                          : Thu, 06 Mar 2025 16:02:32 GMT
Au caractère Ligne:1 : 1
+ New-MgGroup -BodyParameter $params -Debug
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation : ({ Headers = , b...oftGraphGroup }:<>f__AnonymousType2`2) [New-MgGroup_Create], Exception
    + FullyQualifiedErrorId : Request_BadRequest,Microsoft.Graph.PowerShell.Cmdlets.NewMgGroup_Create
DÉBOGUER : [CmdletEndProcessing]: - New-MgGroup end processing.

Configuration

Powershell integrated terminal in VS Code

PS> $psversiontable

Name                           Value
----                           -----
PSVersion                      5.1.19041.5486
PSEdition                      Desktop
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}
BuildVersion                   10.0.19041.5486
CLRVersion                     4.0.30319.42000
WSManStackVersion              3.0
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1

Other information

The request body seems truncated in the HTTP post request.

[tobvil]

I'm having the exact same issue.

[kantier]

same