When should I register a FOP? Even before the sale, or is it possible later?
Do I have the right to sell products via the Internet and, so to speak, to study the market's reaction without registering a FOP? If so, how long can I do this?
I am asking because I want to start an Instagram page. I want to sew underwear to order. But now all participants of social networks are quickly found. I wonder if I will be fined for such advertising.