Registering a company on multiple websites

Hello DP nation,

I first plan to register my ecommerce business as a sole proprietorship, but it will have several websites. One is dedicated to Amazon FBA, while the other would be an affiliate company.

Is it possible to register it under a single business name and indicate that it has two websites or do I have to register each website under its own business name? What was your experience? Thank you for sharing.
SEMrush