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TeamsAppInstallation.ReadForChat.All

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Application Read All Resources

Allows the app to read the Teams apps that are installed in any chat, without a signed-in user. Does not give the ability to read application-specific settings.

In short

TeamsAppInstallation.ReadForChat.All is an application-only permission in the Microsoft Graph API, grouped under the TeamsAppInstallation category. Allows the app to read the Teams apps that are installed in any chat, without a signed-in user. Does not give the ability to read application-specific settings. It grants read-only access to resources. Application permissions always require admin consent.

Permission data: September 15, 2026 at 3:10 AM UTC
Delegated Access App-Only Access

Permission Details

Application Permission

Read installed Teams apps for all chats

Allows the app to read the Teams apps that are installed in any chat, without a signed-in user. Does not give the ability to read application-specific settings.

Properties

Microsoft Graph v1.0 exact-category-docs

Properties is shown from stable Microsoft Graph v1.0 metadata.

Property Type Description
consentedPermissionSet teamsAppPermissionSet The set of resource-specific permissions consented to while installing or upgrading the teamsApp.
id string A unique ID (not the Teams app ID).
teamsApp object The app that is installed.
teamsAppDefinition object The details of this version of the app.

JSON Representation

Microsoft Graph v1.0 exact-category-docs

JSON representation is shown from stable Microsoft Graph v1.0 metadata.

JSON representation
{
  "consentedPermissionSet": "#microsoft.graph.teamsAppPermissionSet",
  "id": "string"
}

Relationships

Microsoft Graph v1.0 exact-category-docs

Relationships is shown from stable Microsoft Graph v1.0 metadata.

Relationship Type Description
teamsApp teamsApp The app that is installed.
teamsAppDefinition teamsAppDefinition The details of this version of the app.

Graph Methods

Delegated access App-only access
Exact Microsoft Learn match

Microsoft Graph v1.0 endpoints are mapped directly from refreshed Microsoft Learn permissions tables.

Methods
GET /chats/{chat-id}/installedApps
GET /chats/{chat-id}/installedApps/{app-installation-id}
GET /chats/{chat-id}/permissionGrants
Exact Microsoft Learn match

Microsoft Graph beta endpoints are mapped directly from refreshed Microsoft Learn permissions tables.

Methods
GET /chats/{chat-id}/installedApps
GET /chats/{chat-id}/installedApps/{app-installation-id}
GET /chats/{chat-id}/permissionGrants
Exact Microsoft Learn PowerShell match

Microsoft Graph PowerShell v1.0 commands are mapped directly from refreshed Microsoft Learn PowerShell snippets.

Commands
Get-MgChatInstalledApp /chats/{chat-id}/installedApps
List apps in chat
Get-MgChatInstalledApp /chats/{chat-id}/installedApps/{app-installation-id}
Get installed app in chat
Get-MgChatPermissionGrant /chats/{chat-id}/permissionGrants
List permissionGrants of a chat
Exact Microsoft Learn PowerShell match

Microsoft Graph PowerShell beta commands are mapped directly from refreshed Microsoft Learn PowerShell snippets.

Commands
Get-MgBetaChatInstalledApp /chats/{chat-id}/installedApps
List apps in chat
Get-MgBetaChatInstalledApp /chats/{chat-id}/installedApps/{app-installation-id}
Get installed app in chat
Get-MgBetaChatPermissionGrant /chats/{chat-id}/permissionGrants
List permissionGrants of a chat

Code Examples

C# / .NET SDK
Get installed app in chat
// Code snippets are only available for the latest version. Current version is 5.x

// To initialize your graphClient, see https://learn.microsoft.com/en-us/graph/sdks/create-client?from=snippets&tabs=csharp
var result = await graphClient.Chats["{chat-id}"].InstalledApps["{teamsAppInstallation-id}"].GetAsync();
JavaScript
Get installed app in chat
const options = {
	authProvider,
};

const client = Client.init(options);

let teamsAppInstallation = await client.api('/chats/19:[email protected]/installedApps/MTk6ZDY1NzEzYmM0OThjNGE0MjhjNzFlZjkzNTNlNmNlMjBAdGhyZWFkLnYyIyMwMDAwMTAxNi1kZTA1LTQ5MmUtOTEwNi00ODI4ZmM4YTg2ODc=')
	.get();
PowerShell
Get installed app in chat
Import-Module Microsoft.Graph.Teams

Get-MgChatInstalledApp -ChatId $chatId -TeamsAppInstallationId $teamsAppInstallationId
Python
Get installed app in chat
# Code snippets are only available for the latest version. Current version is 1.x
from msgraph import GraphServiceClient
# To initialize your graph_client, see https://learn.microsoft.com/en-us/graph/sdks/create-client?from=snippets&tabs=python

result = await graph_client.chats.by_chat_id('chat-id').installed_apps.by_teams_app_installation_id('teamsAppInstallation-id').get()

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 Application permissions and search for TeamsAppInstallation.ReadForChat.All

4

Grant Admin Consent

Application permissions always require admin consent.

Frequently asked questions

What is the TeamsAppInstallation.ReadForChat.All Microsoft Graph permission?

TeamsAppInstallation.ReadForChat.All is an application-only permission in the Microsoft Graph API, grouped under the TeamsAppInstallation category. Allows the app to read the Teams apps that are installed in any chat, without a signed-in user. Does not give the ability to read application-specific settings. It grants read-only access to resources. Application permissions always require admin consent. It is mapped to the Microsoft Graph teamsappinstallation resource type. 6 documented Microsoft Graph REST methods require it. 6 Microsoft Graph PowerShell commands are documented for it.

Is TeamsAppInstallation.ReadForChat.All an application or a delegated permission?

TeamsAppInstallation.ReadForChat.All is an application permission only. It grants app-only access without a signed-in user and always requires admin consent.

Does TeamsAppInstallation.ReadForChat.All require admin consent?

Application permissions always require admin consent.

What is the permission ID (GUID) for TeamsAppInstallation.ReadForChat.All?

For TeamsAppInstallation.ReadForChat.All, the application (app role) ID is cc7e7635-2586-41d6-adaa-a8d3bcad5ee5. These are the real Microsoft Graph identifiers and can be used directly in an app registration manifest.