auth | Microsoft identity platform | Delegated OSO public client by default. |
team | Teams | User access and tenant policy apply. |
channel | Channels | Shared/private channels can need additional access. |
message | Chat messages, hosted contents, DriveItem file references | Normal mutation requires delegated tokens. Inline images use hosted contents; file attachments use OneDrive or SharePoint. |
chat | Chats | Meeting chats can have roster restrictions. |
presence | Presence | Tenant policy can restrict reads/writes. |
file | Drive items behind Teams files | Validate permissions per tenant. |
user resolve | Users, People API, chat rosters | Exact user lookup is preferred; People results are verified through /users/{userPrincipalName}. |
subscribe | Change notifications | Requires public HTTPS callback URL. |