I have been researching the connection between the MacOS Apple AddressBook and LinkedIn. The connector comes with MacOS and it appears to use the LinkedIn API. The terms of service for the normal LinkedIn API allows users to download information but not retain a copy. If you wish to retain a copy, you need to sign up for a special LinkedIn program. It's reasonable to assume that Apple has signed up for that program.
ABAddressBook framework, I am able to find all of the entries in my addressbook that come from LinkedIn. I cannot delete the AddressBook card from within the Apple AddressBook; when I have one of these cards selected, the DeleteCard option is not enabled.
So here is my question: I delete somebody from LinkedIn, and they do not get deleted from my Apple AddressBook. So how do they get deleted? Do they ever get deleted?