Planner create API with Group Id is not working in Microsoft Graph

Question

I am creating a Planner with Planner create API. For business reason I also have to create a new group and create the planner under the new group. It was working fine until the new Planner update. Now even though I am supplying the groupId, the planner does not create under it and the group members can not access it. Is there any work around for this?

Here is how I am creating a planner,

PlannerPlan requestBody = new()

{

Container = new PlannerPlanContainer

{

Url = $"https://graph.microsoft.com/v1.0/groups/{groupId}",

},

Title = title,

};

var result = await _graphServiceClient.Planner.Plans.PostAsync(requestBody);

And here is how I am creating the group,

Group requestBody = new Group
{
    Description = name,
    DisplayName = name,
    GroupTypes = new List<string>
    {
    },
    MailEnabled = false,
    MailNickname = {nickName},
    SecurityEnabled = true,
    AdditionalData = new Dictionary<string, object>
    {
        {
            "[email protected]" , new List<string>
            {
                $"https://graph.microsoft.com/v1.0/users/{ownerId}",
            }
        },
        {
            "[email protected]" , new List<string>
            {
                $"https://graph.microsoft.com/v1.0/users/{ownerId}",
            }
        },
    },

};

var response =await _graphServiceClient.Groups.PostAsync(requestBody);

Answer 1

Note that: You cannot create a Planner plan directly with a security group. Planner is designed to work with Microsoft 365 Groups, not security groups.

• Planner is integrated into Microsoft 365 Groups, and each group automatically gets a Planner plan that can be used for task management.
• A Microsoft 365 Group is a collaborative workspace where you can manage resources like Outlook, Teams, OneDrive, SharePoint, and Planner.

Hence to resolve the issue, make sure to create group as Microsoft 365:

POST https://graph.microsoft.com/v1.0/groups
Content-type: application/json

{
  "description": "Test",
  "displayName": "Test",
  "groupTypes": [
    "Unified"
  ],
  "mailEnabled": true,
  "mailNickname": "Test",
  "securityEnabled": false
}

To create Microsoft 365 group via code check the below:

var requestBody = new Group
{
    Description = "Test",
    DisplayName = "Test",
    GroupTypes = new List<string>
    {
        "Unified",
    },
    MailEnabled = true,
    MailNickname = "Test",
    SecurityEnabled = false,
};

var result = await graphClient.Groups.PostAsync(requestBody);

Now create the planner by using below query:

POST https://graph.microsoft.com/v1.0/planner/plans

{

"container": {
"url": "https://graph.microsoft.com/v1.0/groups/M365GroupID"
},
"title": "ruk"
}

Code:

var requestBody = new PlannerPlan
{
    Container = new PlannerPlanContainer
    {
        Url = "https://graph.microsoft.com/v1.0/groups/M365GroupID",
    },
    Title = "title-value",
};
var result = await graphClient.Planner.Plans.PostAsync(requestBody);

Reference:

Create plannerPlan - Microsoft Graph v1.0 | Microsoft