ChannelMessage.ReadWrite

Allows the app to read and write channel messages, on behalf of the signed-in user. This doesn't allow the app to edit the policyViolation of a channel message.

Merill's Note

For an app to access data in Microsoft Graph, the user or administrator must grant it the permissions it needs. This article lists all the Microsoft Graph APIs and your tenant data that can be accessed by the application (vendor/developer) if you consent to the ChannelMessage.ReadWrite permission.

If you need to create an audit report of the permissions granted to all the apps in your tenant, you can run the Export-MsIdAppConsentGrantReport command. See How To: Run a quick OAuth app audit of your tenant

Category	Application	Delegated
Identifier	-	5922d31f-46c8-4404-9eaf-2117e390a8a4
DisplayText	-	Read and write user channel messages
Description	-	Allows the app to read and write channel messages, on behalf of the signed-in user. This doesn't allow the app to edit the policyViolation of a channel message.
AdminConsentRequired	Yes	Yes

Graph Methods

→ API supports delegated access (access on behalf of a user)
→ API supports app-only access (access without a user)

	Methods
	PATCH /teams/(team-id)/channels/{channel-id}/messages/{message-id}
	PATCH /teams/(team-id)/channels/{channel-id}/messages/{message-id}/replies/{reply-id}
	POST /teams/{teamId}/channels/{channelId}/messages/{messageId}/replies/{replyId}/softDelete
	POST /teams/{teamId}/channels/{channelId}/messages/{messageId}/replies/{replyId}/undoSoftDelete
	POST /teams/{teamsId}/channels/{channelId}/messages/{chatMessageId}/softDelete
	POST /teams/{teamsId}/channels/{channelId}/messages/{chatMessageId}/undoSoftDelete

→ API supports delegated access (access on behalf of a user)
→ API supports app-only access (access without a user)

	Methods
	PATCH /teams/(team-id)/channels/{channel-id}/messages/{message-id}
	PATCH /teams/(team-id)/channels/{channel-id}/messages/{message-id}/replies/{reply-id}
	POST /teams/{teamId}/channels/{channelId}/messages/{messageId}/replies/{replyId}/softDelete
	POST /teams/{teamId}/channels/{channelId}/messages/{messageId}/replies/{replyId}/undoSoftDelete
	POST /teams/{teamsId}/channels/{channelId}/messages/{chatMessageId}/softDelete
	POST /teams/{teamsId}/channels/{channelId}/messages/{chatMessageId}/undoSoftDelete

→ Command supports delegated access (access on behalf of a user)
→ Command supports app-only access (access without a user)

	Commands
	Invoke-MgSoftTeamChannelMessageReplyDelete
	Undo-MgTeamChannelMessageSoftDelete
	Update-MgTeamChannelMessage

→ Command supports delegated access (access on behalf of a user)
→ Command supports app-only access (access without a user)

	Commands
	Invoke-MgBetaSoftTeamChannelMessageReplyDelete
	Undo-MgBetaTeamChannelMessageSoftDelete
	Update-MgBetaTeamChannelMessage

Resources

Granting this permission allows the calling application to access (and/or update) the following information in your tenant.

Graph reference: channel

Property	Type	Description
createdDateTime	dateTimeOffset	Read only. Timestamp at which the channel was created.
description	String	Optional textual description for the channel.
displayName	String	Channel name as it will appear to the user in Microsoft Teams. The maximum length is 50 characters.
email	String	The email address for sending messages to the channel. Read-only.
id	String	The channel's unique identifier. Read-only.
isArchived	Boolean	Indicates whether the channel is archived. Read-only.
isFavoriteByDefault	Boolean	Indicates whether the channel should be marked as recommended for all members of the team to show in their channel list. Note: All recommended channels automatically show in the channels list for education and frontline worker users. The property can only be set programmatically via the Create team method. The default value is `false`.
membershipType	channelMembershipType	The type of the channel. Can be set during creation and can't be changed. The possible values are: `standard`, `private`, `unknownFutureValue`, `shared`. The default value is `standard`. Use the `Prefer: include-unknown-enum-members` request header to get the following value in this evolvable enum: `shared`.
tenantId	string	The ID of the Microsoft Entra tenant.
webUrl	String	A hyperlink that will go to the channel in Microsoft Teams. This is the URL that you get when you right-click a channel in Microsoft Teams and select Get link to channel. This URL should be treated as an opaque blob, and not parsed. Read-only.
summary	channelSummary	Contains summary information about the channel, including number of owners, members, guests, and an indicator for members from other tenants. The **s

Graph reference: chat

Property	Type	Description
chatType	chatType	Specifies the type of chat. Possible values are: `group`, `oneOnOne`, `meeting`, `unknownFutureValue`.
createdDateTime	dateTimeOffset	Date and time at which the chat was created. Read-only.
id	String	The chat's unique identifier. Read-only.
isHiddenForAllMembers	Boolean	Indicates whether the chat is hidden for all its members. Read-only.
lastUpdatedDateTime	dateTimeOffset	Date and time at which the chat was renamed or the list of members was last changed. Read-only.
onlineMeetingInfo	teamworkOnlineMeetingInfo	Represents details about an online meeting. If the chat isn't associated with an online meeting, the property is empty. Read-only.
tenantId	String	The identifier of the tenant in which the chat was created. Read-only.
topic	String	(Optional) Subject or topic for the chat. Only available for group chats.
viewpoint	chatViewpoint	Represents caller-specific information about the chat, such as the last message read date and time. This property is populated only when the request is made in a delegated context.
webUrl	String	The URL for the chat in Microsoft Teams. The URL should be treated as an opaque blob, and not parsed. Read-only.

Graph reference: chatMessage

Property	Type	Description
attachments	chatMessageAttachment collection	References to attached objects like files, tabs, meetings etc.
body	itemBody	Plaintext/HTML representation of the content of the chat message. Representation is specified by the contentType inside the body. The content is always in HTML if the chat message contains a chatMessageMention.
chatId	string	If the message was sent in a chat, represents the identity of the chat.
channelIdentity	channelIdentity	If the message was sent in a channel, represents identity of the channel.
createdDateTime	dateTimeOffset	Timestamp of when the chat message was created.
deletedDateTime	dateTimeOffset	Read only. Timestamp at which the chat message was deleted, or null if not deleted.
etag	string	Read-only. Version number of the chat message.
eventDetail	eventMessageDetail	Read-only. If present, represents details of an event that happened in a chat, a channel, or a team, for example, adding new members. For event messages, the messageType property will be set to `systemEventMessage`.
from	chatMessageFromIdentitySet	Details of the sender of the chat message. Can only be set during migration.
id	String	Read-only. Unique ID of the message. IDs are unique within a chat/channel/reply-to-message, but might be duplicated in other chats/channels/reply-to-messages.
importance	string	The importance of the chat message. The possible values are: `normal`, `high`, `urgent`.
lastModifiedDateTime	dateTimeOffset	Read only. Timestamp when the chat message is created (initial setting) or modified, including when a reaction is added or removed.
lastEditedDateTime	dateTimeOffset	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`.
locale	string	Locale of the chat message set by the client. Always set to `en-us`.
mentions	chatMessageMention collection	List of entities mentioned in the chat message. Supported entities are: user, bot, team, channel, chat, and tag.
messageHistory	chatMessageHistoryItem collection	List of activity history of a message item, including modification time and actions, such as reactionAdded, reactionRemoved, or reaction changes, on the message.
messageType	chatMessageType	The type of chat message. The possible values are: `message`, `chatEvent`, `typing`, `unknownFutureValue`, `systemEventMessage`. Use the `Prefer: include-unknown-enum-members` request header to get the following value in this evolvable enum: `systemEventMessage`.
policyViolation	chatMessagePolicyViolation	Defines the properties of a policy violation set by a data loss prevention (DLP) application.
reactions	chatMessageReaction collection	Reactions for this chat message (for example, Like).
replyToId	string	Read-only. ID of the parent chat message or root chat message of the thread. (Only applies to chat messages in channels, not chats.)
subject	string	The subject of the chat message, in plaintext.
summary	string	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.
webUrl	string	Read-only. Link to the message in Microsoft Teams.

Table of Contents

ChannelMessage.ReadWrite

Graph Methods

Resources