SDCL § 43-35-4: Executory agreement for sale or exchange of personal property--Transfer of title--Exception.

Title is transferred by an executory agreement for the sale or exchange of personal property, only when the buyer has accepted the thing, or when the seller has completed it, prepared it for delivery, and offered it to the buyer, with intent to transfer the title thereto, in manner sufficient to constitute legal tender, except as may be otherwise provided in chapter 57A-2.