Colo. Rev. Stat. § 4-2.5-202
(1) Terms with respect to which the confirmatory memoranda of the parties agree or which are otherwise set forth in a record 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:
Source: L. 91: Entire article added, p. 280, § 1, effective July 1, 1992. L. 2023: IP(1) and (1)(b) amended, (SB 23-090), ch. 136, p. 530, § 16, effective August 7.