Hi, @gc99! Thank you for reaching out. An agent will get back to you as soon as possible. Until then, if any community member has information that may be helpful, feel free to reply here.
I'll take a look and get back soon.
To answer your questions, a BuyerID can have multiple funding accounts (each funding account would need its own proxy pool of accounts). A funding account can only be associated with a single company, so it cannot have multiple BuyerIDs associated with it. Hierarchy is Buyer -> Funding Account -> Proxy Pool.
Funding Account 123
Proxy Pool A
Proxy Pool B
Funding Account 456
Proxy Pool C
Proxy Pool D