(a) by course of performance, course of dealing, or usage of trade
(Section 1--303); and
(b) by evidence of consistent additional terms unless the court finds
the writing to have been intended also as a complete and exclusive
statement of the terms of the agreement.
Structure New York Laws
Part 2 - Form, Formation and Readjustment of Contract
2-201 - Formal Requirements; Statute of Frauds.
2-202 - Final Written Expression: Parol or Extrinsic Evidence.
2-206 - Offer and Acceptance in Formation of Contract.
2-207 - Additional Terms in Acceptance or Confirmation.
2-208 - Course of Performance or Practical Construction.