Good question Daud --- Another new dimension of diplomacy in response to your question is exchanges between Sates and multinational corporations. It is evident now that some of these companies have wielded more power than the States and have income more than GDPs of rich countries, and there actions have effect on the nations, for instance, Facebook and affiliated Apps (WhatsApp and Instagram) outage on October 4, 2021. This among others things have seen spawning of diplomatic missions in Silicon Valley to conduct diplomacy with Big Tech companies. So in as much as it is not implicitly stated but the diplomats in whatever form they exist in the valley conduct conversations with the none state entities there which help to shape policy in sending States..

Source author: MacOswald Jumali macjumali@yahoo.com