Exclusion of Buyers

Is there functionality included within the Waves Platform that would allow a Token Issuer from to exclude transactions with/for residents of certain Countries?

It is impossible, because there is no such identification in the blockchain.

But you can introduce your own, for example, if someone wants to trade your token, he should provide needed proofs to you and then you add this user to your whitelist of approved traders.

Thanks for this. So do I understand it correctly that people who want to trade our token are automatically excluded from trading up front…but we can add them to our Whitelist? How are we notified that somebody would like to buy the token (so that we can then do the necessary screening?

The simplest way is to provide information about that in your token description.

Or in the error which will be thrown when a user is not in the list.