Role ID Purpose Description
Contacts.Read 089fe4d0-434a-44c5-8827-41ba8a0b17f5 Read contacts in all mailboxes Allows the app to read all contacts in all mailboxes without a signed-in user.
Contacts.ReadWrite 6918b873-d17a-4dc1-b314-35f528134491 Read and write contacts in all mailboxes Allows the app to create, read, update, and delete all contacts in all mailboxes without a signed-in user.