How to disable selling to certain EU countries?

Hi,

I'm a fba seller for many years. This year a EU law change let's me rethink the whole "sell to everyone everywhere" approach.

All my products are stored in Germany.

I would like to disable selling to other countries but Germany and Austria.

How do I do this? I never needed to disable marketplace.

There was also this Amazon worldwide shipping program where Amazon buys products and sends them to other people. This is fine as far as I understand.