In order for a contract of adhesion to be concluded, the supplier must provide a customer with general conditions of sale identical to those offered to other customers. These terms and conditions are not negotiable. However, proponents of the standard contract argue that it promotes the efficiency of contract law, which saves negotiation time and costs. · the wording of the contract or the language that a non-signatory would not understand; Electronic agreements are supposed to allow for faster and simpler transactions, but they can be complex and may not always be appropriate for what can be considered fair. Most consumer transactions are considered liability contracts that are not normally negotiable. Membership contracts are not unenforceable, or even fake.