Customer contracts can therefore be useful for both the customer and the seller, as they contain written instructions for the transaction. If you and your client are in different countries, choose the state laws that govern the contract. In almost all cases, you want it to be your own state. Also indicate that all acts or procedures arising from the contract are dealt with in this state. Did you use any of those excuses? None of them is a good reason not to use a contract. If you are a retailer, your contract may be on the back of the customer document, and if you are an independent or other service employee, it may be more formalized – a legal document. 1.3 Supports. If you want support other than the support we offer free of charge to other users of the services, you can register with the customer in accordance with the terms and conditions of the support policies. Customer or consumer contracts can be entered into for a variety of purposes. For example, the customer and distributor can enter into an agreement in which the distributor agrees to sell a certain number of items and the customer assumes that he or she buys them at some point.