Mont. Code Ann. § 30-2-202
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:
History: En. Sec. 2-202, Ch. 264, L. 1963; R.C.M. 1947, 87A-2-202; amd. Sec. 9, Ch. 200, L. 2025.