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plannertaskchatmessage-update.md

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title Update plannerTaskChatMessage
description Update the properties of a plannerTaskChatMessage object.
author pavlodatsiuk
ms.localizationpriority medium
ms.subservice planner
doc_type apiPageType
ms.date 01/23/2026

Update plannerTaskChatMessage

Namespace: microsoft.graph

[!INCLUDE beta-disclaimer]

Update the properties of a plannerTaskChatMessage object.

[!INCLUDE national-cloud-support]

Permissions

Choose the permission or permissions marked as least privileged for this API. Use a higher privileged permission or permissions only if your app requires it. For details about delegated and application permissions, see Permission types. To learn more about these permissions, see the permissions reference.

[!INCLUDE permissions-table]

HTTP request

PATCH /planner/tasks/{task-id}/messages/{message-id}

Request headers

Name Description
Authorization Bearer {token}. Required. Learn more about authentication and authorization.
Content-Type application/json. Required.

Request body

[!INCLUDE table-intro]

Property Type Description
content String The content of the chat message. Supports plain text and sanitized HTML.
mentions plannerTaskChatMention collection The list of mentions in the message.

Response

If successful, this method returns a 200 OK response code and an updated plannerTaskChatMessage object in the response body.

This method can return any of the HTTP status codes. The most common errors that apps should handle for this method are the 400, 403, 404, and 409 responses. For more information about these errors, see Common Planner error conditions.

Example

Request

The following example shows a request.

HTTP

PATCH https://graph.microsoft.com/beta/planner/tasks/01gzSlKkIUSUl6DF_EilrmQAKDhh/messages/5bde7bc8-d998-4e8a-8159-93d4d7ccc3b5
Content-type: application/json

{
  "content": "<div>Updated message with <span itemid=\"0\" itemtype=\"https://schema.skype.com/Mention/Person\"></span> mention</div>",
  "mentions": [
    {
      "mentioned": "6463a5ce-2119-4198-9f2a-628761df4a62",
      "position": 0,
      "mentionType": "user"
    }
  ]
}

C#

[!INCLUDE sample-code] [!INCLUDE sdk-documentation]

Go

[!INCLUDE sample-code] [!INCLUDE sdk-documentation]

Java

[!INCLUDE sample-code] [!INCLUDE sdk-documentation]

JavaScript

[!INCLUDE sample-code] [!INCLUDE sdk-documentation]

PHP

[!INCLUDE sample-code] [!INCLUDE sdk-documentation]

Python

[!INCLUDE sample-code] [!INCLUDE sdk-documentation]

Response

The following example shows the response.

HTTP/1.1 200 OK
Content-type: application/json

{
  "@odata.context": "https://graph.microsoft.com/beta/$metadata#planner/tasks('01gzSlKkIUSUl6DF_EilrmQAKDhh')/messages/$entity",
  "id": "5bde7bc8-d998-4e8a-8159-93d4d7ccc3b5",
  "messageType": "richTextHtml",
  "content": "<div>Updated message with <span itemid=\"0\" itemtype=\"https://schema.skype.com/Mention/Person\"></span> mention</div>",
  "createdDateTime": "2025-12-05T17:49:39.593Z",
  "parentEntityId": "01gzSlKkIUSUl6DF_EilrmQAKDhh",
  "deletedTime": null,
  "editedTime": "2025-12-05T18:15:24.706Z",
  "mentions": [
    {
      "mentioned": "6463a5ce-2119-4198-9f2a-628761df4a62",
      "position": 0,
      "mentionType": "user"
    }
  ],
  "reactions": [],
  "createdBy": {
    "user": {
      "id": "6463a5ce-2119-4198-9f2a-628761df4a62"
    }
  }
}