External Connection Application Roles for Microsoft Graph

Role	ID	Purpose	Description
ExternalConnection.Read.All	1914711b-a1cb-4793-b019-c2ce0ed21b8c	Read all external connections	Allows the app to read all external connections without a signed-in user.
ExternalConnection.ReadWrite.All	34c37bc0-2b40-4d5e-85e1-2365cd256d79	Read and write all external connections	Allows the app to read and write all external connections without a signed-in user.
ExternalConnection.ReadWrite.OwnedBy	f431331c-49a6-499f-be1c-62af19c34a9d	Read and write external connections	Allows the app to read and write external connections without a signed-in user. The app can only read and write external connections that it is authorized to, or it can create new external connections.