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:
S.C. Code § 36-2-202
2014 Act No. 213, Section 51, provides as follows:
"SECTION 51. This act becomes effective on October 1, 2014. It applies to transactions entered into and events occurring after that date."