⚡ 10-Second Rule
For goods, a yes with extra fine print is usually still a yes — the fight is only over which fine print survives.
🧒 ELI-10 Scene
Milo slides a note across the lunch table: "Trade my Charizard card for your Blastoise?" Jaden writes back: "Deal — and no take-backs." The notes don't match word for word. In a strict old-fashioned club, that mismatch would mean no trade at all. But at this lunch table, everyone can see a trade happened — Jaden clearly said deal. His extra "no take-backs" line is just a suggestion riding along. Between two serious card dealers, small extra lines slip in automatically unless someone objects or the line changes the whole trade. A big extra line — "and you can never complain about scratches" — is too heavy to slip in quietly. The trade stands; the heavy line falls out.
⚖️ Actual Rule
UCC § 2-207 displaces the common-law mirror image rule for sales of goods. Section 2-207(1): "A definite and seasonable expression of acceptance or a written confirmation which is sent within a reasonable time operates as an acceptance even though it states terms additional to or different from those offered or agreed upon, unless acceptance is expressly made conditional on assent to the additional or different terms." Section 2-207(2): "The additional terms are to be construed as proposals for addition to the contract. Between merchants such terms become part of the contract unless: (a) the offer expressly limits acceptance to the terms of the offer; (b) they materially alter it; or (c) notification of objection to them has already been given or is received within a reasonable time after notice of them is received." Section 2-207(3): "Conduct by both parties which recognizes the existence of a contract is sufficient to establish a contract for sale although the writings of the parties do not otherwise establish a contract. In such case the terms of the particular contract consist of those terms on which the writings of the parties agree, together with any supplementary terms incorporated under any other provisions of this Act." For different (conflicting) terms, courts split: the majority "knockout rule" cancels both conflicting terms and fills the gap with UCC default terms, while a minority treats different terms like additional terms or lets the offeror's term control.
ELI-10 translation: with goods, a real yes makes the deal even with extra lines; between pros, small extras slip in unless blocked, big extras fall out, clashing lines knock each other out, and if the papers fail but the goods ship anyway, the deal is the matching lines plus the rulebook's standard fill-ins.
🔍 Ask These Questions
- Is this a sale of goods? (If not, the strict old match-exactly rule still governs.)
- Is the reply a definite expression of acceptance, or does it expressly demand assent to its new terms? (A real "deal!" makes a contract; "deal only if you agree to my lines" is a counteroffer.)
- Are both sides merchants? (Between pros, extra lines can slip in automatically; otherwise they're mere suggestions.)
- For an additional term between merchants, does a blocker apply — offer limited to its terms, material alteration, or timely objection? (Heavy, surprising, or objected-to lines stay out.)
- Is the new term different — clashing head-on with the offer's term? (Most courts knock both clashing lines out and use the rulebook's fill-in.)
- If the papers never formed a contract but both sides performed, apply § 2-207(3). (Shipping and paying proves a deal made of the matching lines plus standard fill-ins.)
⚠️ Bar Trap
Exam language: Examiners bait the common-law reflex: treating a non-matching acknowledgment as a counteroffer that the buyer "accepts" by taking the goods, importing the last-shot rule into a sale of goods. Under § 2-207(1), the acknowledgment is an acceptance despite its new terms, and between merchants an additional term still fails if it materially alters the contract — no objection required.
ELI-10: For goods, forget "last paper sent wins." A real yes makes the deal on the offer's terms, and a heavy new line falls out on its own — nobody has to shout "objection" for it to fail.
🧪 Question
An office-supply retailer sent a furniture manufacturer a purchase order for 500 ergonomic desk chairs at $120 each, specifying model, quantity, price, and delivery date, and saying nothing about warranties. The manufacturer promptly returned a signed acknowledgment form agreeing to the model, quantity, price, and delivery date, but adding: "All warranties, express or implied, including the implied warranty of merchantability, are disclaimed." The acknowledgment did not condition acceptance on assent to the added term. Both parties are merchants. The chairs were delivered and paid for. When 80 chairs proved defective, the retailer sued for breach of the implied warranty of merchantability, and the manufacturer defended by invoking the disclaimer.
Is the disclaimer part of the contract?
(A) Yes, because the retailer accepted and paid for the chairs without objecting to the acknowledgment. (B) Yes, because the acknowledgment was the last form sent before the goods were delivered. (C) No, because a disclaimer of the implied warranty of merchantability materially alters the contract and therefore did not become part of it. (D) No, because additional terms in an acceptance never become part of a contract unless the offeror expressly assents to them.
Answer: (C). The acknowledgment was a definite expression of acceptance under § 2-207(1), so a contract formed on the offer's terms. Between merchants, the added disclaimer would enter automatically under § 2-207(2) — but stripping the buyer of the implied warranty of merchantability is a classic material alteration, so subsection (2)(b) keeps it out regardless of any objection.
💡 Why the Wrong Answers Are Wrong
- (A) assumes silence lets any term in; a materially altering term is excluded by § 2-207(2)(b) even without an objection.
- (B) applies the common-law last-shot rule, which § 2-207 abolished for sales of goods.
- (D) states the non-merchant rule; between merchants, non-material additional terms can become part of the contract without express assent.
- ELI-10: The misconception is thinking the final piece of paper, or the buyer's silence, controls. With goods, the deal forms at the yes, and a heavy surprise line falls out by itself.
