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ChatMessage.Send

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Delegated Read User Scope

Allows an app to send one-to-one and group chat messages in Microsoft Teams, on behalf of the signed-in user.

Delegated Access App-Only Access

Permission Details

Delegated Permission User consent allowed

Send user chat messages

Allows an app to send one-to-one and group chat messages in Microsoft Teams, on behalf of the signed-in user.

Properties

Property Type Description
id string The unique identifier for an entity. Read-only.
locale string Locale of the chat message set by the client. Always set to en-us.
deletedDateTime date-timeNullable Read only. Timestamp at which the chat message was deleted, or null if not deleted.
hostedContents microsoft.graph.chatMessageHostedContent collection Content in a message hosted by Microsoft Teams - for example, images or code snippets.
body microsoft.graph.itemBody
subject stringNullable The subject of the chat message, in plaintext.
importance microsoft.graph.chatMessageImportance
onBehalfOf object User attribution of the message when bot sends a message on behalf of a user.
replyToId stringNullable Read-only. ID of the parent chat message or root chat message of the thread. (Only applies to chat messages in channels, not chats.)
etag stringNullable Read-only. Version number of the chat message.
createdDateTime date-timeNullable Timestamp of when the chat message was created.
mentions microsoft.graph.chatMessageMention collection List of entities mentioned in the chat message. Supported entities are: user, bot, team, channel, chat, and tag.
summary stringNullable Summary text of the chat message that could be used for push notifications and summary views or fall back views. Only applies to channel chat messages, not chat messages in a chat.
lastEditedDateTime date-timeNullable Read only. Timestamp when edits to the chat message were made. Triggers an 'Edited' flag in the Teams UI. If no edits are made the value is null.
webUrl stringNullable Read-only. Link to the message in Microsoft Teams.

Showing 15 of 26 properties. View all on Microsoft Learn →

JSON Representation

JSON representation
{
  "id": "String",
  "locale": "String",
  "deletedDateTime": "String",
  "hostedContents": "[...]",
  "body": "microsoft.graph.itembody",
  "subject": "String",
  "importance": "microsoft.graph.chatmessageimportance",
  "onBehalfOf": "{...}",
  "replyToId": "String",
  "etag": "String",
  "createdDateTime": "String",
  "mentions": "[...]",
  "summary": "String",
  "lastEditedDateTime": "String",
  "webUrl": "String",
  "messageHistory": "[...]",
  "policyViolation": "{...}",
  "messageType": "microsoft.graph.chatmessagetype",
  "lastModifiedDateTime": "String",
  "chatId": "String"
}

Graph Methods

Delegated access App-only access
Methods
POST /chats/{chat-id}/messages
POST /chats/{chat-Id}/pinnedMessages
POST /teams/{teamId}/channels/{channelId}/messages/{messageId}/replies/{replyId}/setReaction
POST /teams/{teamId}/channels/{channelId}/messages/{messageId}/replies/{replyId}/unsetReaction
POST /teams/{teamsId}/channels/{channelId}/messages/{chatMessageId}/setReaction
POST /teams/{teamsId}/channels/{channelId}/messages/{chatMessageId}/unsetReaction
Methods
POST /chats/{chat-id}/messages
POST /chats/{chat-Id}/pinnedMessages
POST /chats/{chatId}/messages/forwardToChat
POST /chats/{chatId}/messages/replyWithQuote
POST /teams/{teamId}/channels/{channelId}/messages/{messageId}/replies/{replyId}/setReaction
POST /teams/{teamId}/channels/{channelId}/messages/{messageId}/replies/{replyId}/unsetReaction
POST /teams/{teamsId}/channels/{channelId}/messages/{chatMessageId}/setReaction
POST /teams/{teamsId}/channels/{channelId}/messages/{chatMessageId}/unsetReaction

Code Examples

C# / .NET SDK
// Install: dotnet add package Microsoft.Graph
// Install: dotnet add package Azure.Identity
using Microsoft.Graph;
using Azure.Identity;

// Delegated permissions - interactive user sign-in
var scopes = new[] { "ChatMessage.Send" };
var options = new InteractiveBrowserCredentialOptions
{
    ClientId = "YOUR_CLIENT_ID",
    TenantId = "YOUR_TENANT_ID",
    RedirectUri = new Uri("http://localhost")
};
var credential = new InteractiveBrowserCredential(options);
var graphClient = new GraphServiceClient(credential, scopes);

// Example: GET /me
var result = await graphClient.Me.GetAsync();
Console.WriteLine($"User: {result?.DisplayName}");
JavaScript / TypeScript
// npm install @azure/msal-browser @microsoft/microsoft-graph-client
import { PublicClientApplication } from "@azure/msal-browser";
import { Client } from "@microsoft/microsoft-graph-client";
import { AuthCodeMSALBrowserAuthenticationProvider } from 
    "@microsoft/microsoft-graph-client/authProviders/authCodeMsalBrowser";

const msalConfig = {
    auth: {
        clientId: "YOUR_CLIENT_ID",
        authority: "https://login.microsoftonline.com/YOUR_TENANT_ID"
    }
};

const pca = new PublicClientApplication(msalConfig);
await pca.initialize();

// Delegated: Login with required scope
const loginResponse = await pca.loginPopup({
    scopes: ["ChatMessage.Send"]
});

const authProvider = new AuthCodeMSALBrowserAuthenticationProvider(pca, {
    account: loginResponse.account,
    scopes: ["ChatMessage.Send"],
    interactionType: "popup"
});

const graphClient = Client.initWithMiddleware({ authProvider });

// Example: GET /me
const result = await graphClient.api("/me").get();
console.log(result);
PowerShell
# Install Microsoft Graph PowerShell module
Install-Module Microsoft.Graph -Scope CurrentUser

# Delegated access - interactive sign-in
Connect-MgGraph -Scopes "ChatMessage.Send"

# Verify connection
Get-MgContext | Select-Object Account, TenantId, Scopes

# Example: GET /me
$result = Invoke-MgGraphRequest -Method GET -Uri "https://graph.microsoft.com/v1.0/me"
$result | ConvertTo-Json -Depth 5


# Always disconnect when done
Disconnect-MgGraph
Python
# pip install msgraph-sdk azure-identity
from azure.identity import InteractiveBrowserCredential, ClientSecretCredential
from msgraph import GraphServiceClient
import asyncio

# Delegated permissions - interactive browser sign-in
credential = InteractiveBrowserCredential(
    client_id="YOUR_CLIENT_ID",
    tenant_id="YOUR_TENANT_ID"
)
scopes = ["ChatMessage.Send"]
client = GraphServiceClient(credential, scopes)

async def get_data():
    # Example: GET /me
    result = await client.me.get()
    print(f"User: {result.display_name}")
    return result

asyncio.run(get_data())

App Registration

1

Navigate to Azure Portal

Go to App registrations in Microsoft Entra admin center

2

Add API Permission

Select your app → API permissions → Add a permission → Microsoft Graph

3

Select Permission Type

Choose Delegated permissions and search for ChatMessage.Send

4

Grant Admin Consent

Users can consent to this permission themselves during sign-in.