Ind. Code § 26-1-2.1-202
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:
As added by P.L.189-1991, SEC.3. Amended by P.L.199-2023, SEC.14.