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// graph-permissions · ChannelMessage

ChannelMessage.ReadWriteMicrosoft Graph permission · Medium risk

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.

Delegated permission

Medium risk

Read and write user channel messages. 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.

ID5922d31f-46c8-4404-9eaf-2117e390a8a4
ConsentNeeds admin consent
RiskReads or changes the signed-in user's content, limited to what that user can access.

Ask for it when signing in

Delegated permissions act as the signed-in user, so the app can never do more than that user can.

powershell1 line
Connect-MgGraph -Scopes "ChannelMessage.ReadWrite"

Which apps already have it?

powershell6 lines
# Apps with delegated consent for ChannelMessage.ReadWrite
Connect-MgGraph -Scopes "Application.Read.All", "Directory.Read.All"
$graph = Get-MgServicePrincipal -Filter "appId eq '00000003-0000-0000-c000-000000000000'"
Get-MgOauth2PermissionGrant -All |
    Where-Object { $_.ResourceId -eq $graph.Id -and ($_.Scope -split " ") -contains "ChannelMessage.ReadWrite" } |
    Select-Object ClientId, ConsentType, PrincipalId

Other ChannelMessage permissions

Check every app in your tenant → Permission explainer