S.D. Codified Laws § 57A-2A-202 (2026)
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: SL 1989, ch 419 , § 1; SL 2024, ch 198 , § 17.