The uniform commercial code greatly alters the common law doctrine of material breach by adopting…

4. Can parties modify or limit the perfect tender rule in their sales contract?
Yes. The UCC permits parties to agree to different standards and to limit remedies by contract. They can require inspection, set acceptance criteria, exclude the perfect tender remedy, or specify cure and warranty terms. Courts will enforce clear contractual language, course of performance, and trade usage that alter default UCC rules.