B2B: B2B is Business to business and this is a sellacious premium feature.
Allow customers authorised user: Choose whether a customer can assign authorised access to other users to make purchases on their behalf. It is a premium feature in which you can choose whether a customer can assign authorised access to other users to make purchases on their behalf. It is basically granting access to the other user.
Allow customer credit limit: It is a premium feature in which there is some credit limit for the customers.
Hide Price from Public: When you enable this configuration from B2B, product price is hide from public. Price can only be visible for logged-in users.