Role ID Purpose Description
ChannelMember.Read.All 3b55498e-47ec-484f-8136-9013221c06a9 Read the members of all channels Read the members of all channels, without a signed-in user.
ChannelMember.ReadWrite.All 35930dcf-aceb-4bd1-b99a-8ffed403c974 Add and remove members from all channels Add and remove members from all channels, without a signed-in user. Also allows changing a member’s role, for example from owner to non-owner.