List threads

Namespace: microsoft.graph


APIs under the /beta version in Microsoft Graph are subject to change. Use of these APIs in production applications is not supported. To determine whether an API is available in v1.0, use the Version selector.

Get all the threads in a group conversation. Note: You can also get all the threads of a group.

This API is available in the following national cloud deployments.

Global service US Government L4 US Government L5 (DOD) China operated by 21Vianet


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.

Permission type Least privileged permissions Higher privileged permissions
Delegated (work or school account) Group-Conversation.Read.All Group-Conversation.ReadWrite.All, Group.Read.All, Group.ReadWrite.All
Delegated (personal Microsoft account) Not supported. Not supported.
Application Group-Conversation.Read.All Group-Conversation.ReadWrite.All, Group.Read.All, Group.ReadWrite.All

HTTP request

GET /groups/{id}/conversations/{id}/threads

Optional query parameters

This method supports the $select OData query parameter to help customize the response for example, to retrieve the toRecipients and ccRecipients properties.

Request headers

Header Value
Authorization Bearer {token}. Required. Learn more about authentication and authorization.

Request body

Don't supply a request body for this method.


If successful, this method returns a 200 OK response code and collection of conversationThread objects in the response body.



The following example shows a request.



The following example shows the response.

Note: The response object shown here might be shortened for readability.

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

    "@odata.context": "$metadata#groups('4d81ce71-486c-41e9-afc5-e41bf2d0722a')/conversations('AAQkAGRhZmRhMWM3LTYwZTktNDZmYy1hNWU1LThhZWU4NzI2YTEyZgAQABKPPJ682apIiV1UFlj7XxY%3D')/threads",
    "value": [
            "id": "AAQkAGRhZmRhMWM3LTYwZTktNDZmYy1hNWU1LThhZWU4NzI2YTEyZgMkABAAEo88nrzZqkiJXVQWWPtfFhAAEo88nrzZqkiJXVQWWPtfFg==",
            "topic": "The new Ask HR group is ready",
            "hasAttachments": false,
            "lastDeliveredDateTime": "2021-08-02T11:42:38Z",
            "uniqueSenders": [
                "Ask HR"
            "preview": "Welcome to the Ask HR group.Use the group to share ideas, files, and important dates.Start a conversationRead group conversations or start your own.Add to the team siteStart sharing and collaborating on content in SharePoint.Share filesView,",
            "isLocked": false