Final written expression: parol or extrinsic evidence.

Terms with respect to which the confirmatory memoranda of the parties agree or which are otherwise set forth in a writing intended by the parties as a final expression of their agreement with respect to such terms as are included therein may not be contradicted by evidence of any prior agreement or of a contemporaneous oral agreement but may be explained or supplemented: By course of dealing or usage of trade or by course of performance; and 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. “Writing”. Section 1-201(46). “Usage of trade”. Section 1-205. “Term”. Section 1-201(42). “Party”. Section 1-201(29). “Course of dealing”. Section 1-205. Definitional Cross References: “Agreement”. Section 1-201(3). Uniform Statutory Source:Section 2-202.