The basic obligation of a buyer in performing a sales or lease contract is to:#N#a. accept and pay for conforming goods in accordance with the contract.#N#b. negotiate terms of payment for conforming goods prior to signing the contract .#N#c. negotiate the quality of the goods in a contract.
b. deliver or hold at the buyer's disposal goods that conform to the contract's terms in every respect.
11. In situations when commercial impracticability occurs , the perfect tender rule no longer applies.