MS Planner Graph API - Planner Task Details Not Being Created via HTTP request

Question

MS Planner Graph API - Planner Task Details Not Being Created via HTTP request

aaloang 20

I'm using Google Apps Script to create tasks in Microsoft Planner with HTTP requests. I can create a task but can't create or update the task description.

Initially, I've tried populating the task description in the initial post request to create the task.

I used the following payload, which works properly when using the Graph API Explorer.

  var payload = {
    "planId": planId,
    "title": planTitle,
    "details": {
      "description": taskDescription
    }
  };

I've also tried updating the task details after creating a new task, as well as updating the task details of an existing task.

I get no error message, but I've found that null values are being passed into details.

However, I'm also checking my access token and I have the permissions deemed necessary in the documentation.

  "roles": [
    "Group.ReadWrite.All",
    "Tasks.ReadWrite.All"
  ],

Is there anything else I can try?

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Answer 1

Yakun Huang-MSFT 10,555 Microsoft External Staff

Hello aaloang,

Thank you for reaching out to Microsoft Support!

In response to your question, the permissions you granted were fine, and we tested them in Graph Explorer, everything worked fine, and the test results are as follows:

Screenshot 2025-02-12 070306

Screenshot 2025-02-12 070440

Note that when updating description, the If-Match parameter in the request header is required:

User's image

Reference document:

https://learn.microsoft.com/en-us/graph/api/plannertaskdetails-update?view=graph-rest-1.0&tabs=http

Hope this helps.

If the answer is helpful, please click Accept Answer and kindly upvote it. If you have any further questions about this answer, please click Comment.

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aaloang 20

Hello Yakun Huang-MSFT,

Thanks for your response.

I can confirm that the payload works using Graph Explorer. However, running the following request in Google Apps Script returns a null value for description.

function createTaskRequestToGraph(planId, planTitle, taskDescription) {
  var accessToken = getAccessToken();
  var url = 'https://graph.microsoft.com/v1.0/planner/tasks';
  var headers = {
    'Authorization': 'Bearer ' + accessToken,
    'ContentType': 'application/json'
  };
  var payload = {
    "planId": planId,
    "title": planTitle,
    "details": {
      "description": taskDescription
    }
  };
  
  var options ={
    'method':'post',
    'headers': headers,
    'payload': payload
  };
 
  var response= UrlFetchApp.fetch(url,options);

Logging the response for /details returns the following

I tried updating the task details as a work around, but that also returns a null value.

Is there anything else I can try?

Yakun Huang-MSFT 10,555 Microsoft External Staff

I have tested your code in C#, but the results are good, I recommend that you try testing it in Postman first to see if the same problem occurs.

My test code is as follows for your reference:

using System.Text;
using System;
HttpClient client = new HttpClient();
var accessToken = getAccessToken();
var url = "https://graph.microsoft.com/v1.0/planner/tasks";
var data = new StringContent("{\r\n  \"planId\": \"planId\",\r\n  \"title\": \"Update client list\",\r\n  \"details\": {\r\n      \"description\": \"taskDescription\"\r\n    }\r\n}", Encoding.UTF8, "application/json");
// Add a custom header
client.DefaultRequestHeaders.Add("Authorization", "Bearer "+accessToken);
HttpResponseMessage response = await client.PostAsync(url, data);
Console.WriteLine(response);

aaloang 20 Reputation points

2025-02-13T08:56:17.5033333+00:00

Thank you for your reply and giving me some direction.

Unfortunately, I could not reproduce the problem in Postman.

The payload worked as expected, creating the description in one HTTP request.

I will attempt to reproduce the problem in Go.
Yakun Huang-MSFT 10,555 Reputation points Microsoft External Staff

2025-02-14T06:43:29.8566667+00:00

Yes, there is no problem with your payload, the problem may be in the Google Apps Script you are using, waiting for your test results with Go.
aaloang 20 Reputation points

2025-02-18T09:10:48.8933333+00:00

Sorry for taking so long to reply.It took me a while to succeed, but I could not reproduce the problem in Go.

Seeing that the problem only occurs when using Google Apps Script, would that mean Google Apps Script is broken?
Yakun Huang-MSFT 10,555 Reputation points Microsoft External Staff

2025-02-20T02:20:22.0933333+00:00

No problem at all. We appreciate your response and are here to assist you whenever you need.

For this problem, it could be that Google Apps Script is broken, and depending on the documentation supported languages are as follows:

It is also possible that Google Apps Script is not supported, resulting in an error.

Please remember to "Accept Answer" if any answer/reply helped, so that others in the community facing similar issues can easily find the solution.

Thanks.
aaloang 20 Reputation points

2025-02-20T08:37:26.1833333+00:00

Thanks for your help.

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MS Planner Graph API - Planner Task Details Not Being Created via HTTP request

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