What's the difference between an account relationship and a paying relationship?

An account relationship is a flat relationship between two customer accounts only. In an account relationship, either one account can pay for the transactions of another account (one-way) or both accounts can pay for the transactions of each other (reciprocal).

A paying relationship makes use of a hierarchical structure within an enterprise to allow all corresponding accounts and transactions that are associated with one party to be accessible to other parties in the structure. In a paying relationship either one account can pay for the transactions of accounts lower in the hierarchy (Pay Below) or all accounts anywhere in the hierarchy can pay for the transactions of any other party (Pay Any).