However, these treaties are not as difficult to understand as they seem at first glance. They are almost always standard forms, as most states require all merchants to use the same general contract form. The only difference is the information provided by the parties on the form. A payment agreement would be concluded between all private parties who sell cars. It is important to write this documentation, especially when no distributor is involved. Documentation is necessary not only for your documents, but also for legal purposes.. . .