UCC § 2-207 decision tree
Mutual Assent · Sep 30
Floor. ~40 min: UCC § 2-207(1) + Flender (§ 2-207(3) application). The doctrine the next class assumes you have covered.
Target. ~75 min: Floor + UCC § 2-207(2) + worked § 2-207 hypothetical + synthesis.
(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.
(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.
(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.
At common law, an acceptance had to mirror the offer exactly. Any new or different term made the reply a counter-offer that rejected the original offer (R2d § 58). Whoever fired the last form before performance imposed its terms — the "last shot" doctrine.
That rule broke down for form contracts: a buyer's purchase order and a seller's acknowledgment never match, yet both sides plainly intend to deal.
UCC § 2-207 rejects mirror-image for the sale of goods. A definite and seasonable expression of acceptance operates as an acceptance even though it states additional or different terms — unless it is expressly conditional on assent to those new terms.
674 A.2d 1239 (R.I. 1996)
Supreme Court of Rhode Island
Rule. A valid acceptance must be definite and unequivocal, but it is not equivocation if the offeree merely states what was already reasonably implied in the offer, or absolves the offeror of a burden. The mere addition of collateral or immaterial matter does not prevent contract formation; only a difference in a material respect transmogrifies a purported acceptance into a counter-offer.
Once a contract forms under (1), classify each new term in the acceptance:
If a contract formed under (1), additional terms are mere proposals.
Material alteration is the litigated battleground: clauses that cause "surprise or hardship" (arbitration, warranty disclaimers, liability limits) usually drop out; minor clauses (interest on overdue bills, reasonable inspection) usually come in.
830 A.2d 1279 (Pa. Super. Ct. 2003)
Pennsylvania Superior Court
Rule. Under UCC § 2-207, a definite and seasonable expression of acceptance forms a contract even though the writings differ, unless the offeree communicates unwillingness to proceed without its terms. Where the offer and acceptance contain conflicting terms on the same subject, both conflicting terms drop out under the knockout rule and background default law supplies the gap.
Sometimes the writings do not form a contract — the acknowledgment was expressly conditional, or the forms clash so badly that no acceptance occurred. But the parties ship and pay anyway.
§ 2-207(3): conduct that recognizes a contract establishes one, even though the writings did not. The terms are then:
Facts. Buyer sends a purchase order for 500 widgets at $10 each, specifying disputes in buyer's home state courts. Seller responds with an acknowledgment at $10 per widget but including (a) an arbitration clause and (b) a limitation on liability to the purchase price. Seller ships; Buyer accepts delivery. A dispute arises.
Run the tree.
Step 1: § 2-207(1). Does the acknowledgment operate as an acceptance? The acknowledgment agrees on quantity and price; it states additional and different terms but is not expressly conditioned on assent to those terms. Result: contract forms under (1).
Step 2: § 2-207(2). Both parties are merchants. The additional terms are proposals. Arbitration clause: courts split on materiality; likely drops out. Limitation of liability: generally material; likely drops out.
Step 3: § 2-207(3). If the acknowledgment had been expressly conditional, (1) would not form a contract. But Buyer accepted delivery. Conduct establishes the contract. Conflicting forum-selection clauses knock out under the knockout rule. UCC gap-fillers apply.
Taylor, a housepainter, texted Primo Ladder ordering Model 35E, a 35-foot ladder for $325. Primo replied: "We accept your offer. Model 35E is no longer available. We have shipped Model 40E to you at no extra cost, payment due on delivery." Taylor texted: "I do not want the 40E, it's too long for my truck." Primo demanded payment. Taylor refused delivery; Primo sued.
Under UCC § 2-207, was a contract formed by Primo's "acceptance"?
Facts. Ardente bid $250,000 on the Horans' house; the bid was accepted and Ardente executed the purchase-and-sale agreement. His attorney returned it with a check and a letter asking the Horans to "confirm" that the dining-room set, fireplace fixtures, and sun-parlor furniture "are part of the transaction," noting they "would be difficult to replace." The Horans refused and did not sign. Ardente sued for specific performance.
Question. Was Ardente's letter a valid acceptance or a counter-offer?
Answer. Counter-offer. This is a real estate sale, governed by the common-law mirror-image rule, not § 2-207. The letter did not unequivocally accept; it sought confirmation that the listed items were "part of the transaction" and stressed their irreplaceability — i.e., it made acceptance contingent on a change of terms rather than posing a collateral, gratuitous inquiry. A conditional "acceptance" is a counter-offer; no contract, no specific performance. Ardente v. Horan, 366 A.2d 162 (R.I. 1976).
Facts. Ibrahim received what he treated as an "offer" (a New Jersey child-support order) and replied with a twelve-page letter titled "Conditional Acceptance for the Value." He wrote that he "accepted" the offer — but "subject to the conditions set forth," chiefly that officials justify the existence of various government agencies, failing which they would "default" and owe him $3.5 million.
Question. Did Ibrahim's "Conditional Acceptance" letter form a contract on his terms?
Answer. No. Under R2d § 59, a reply that purports to accept but is conditional on the offeror's assent to different or additional terms is not an acceptance but a counter-offer. Ibrahim's letter expressly accepted only "subject to the conditions set forth," so it demanded the offeror's further assent — a counter-offer the State never accepted. No contract; the "default" mechanism is a nullity. Ibrahim v. United States, 799 F. App'x 865 (Fed. Cir. 2020).
Rules. UCC § 2-207(1), UCC § 2-207(2), UCC § 2-207(3).
Cases. Flender Corp. v. Tippins International (knockout rule) · State DOT v. Providence & Worcester (mirror-image's limits).
Punchline. § 2-207 splits formation from terms. Subsection (1) asks whether a deal formed — and a non-matching reply usually still forms one unless it is expressly conditional. Subsections (2) and (3) ask what the terms are — additional terms enter between merchants unless material; conflicting terms knock out and gap-fillers fill in.
Open question. UCC § 2-207 tells us when a contract forms despite mismatched writings. It does not tell us whether the underlying exchange of promises is supported. That is the consideration question. Module II closes Class 11 with a capstone; Module III opens Class 12 with Hamer v. Sidway on bargained-for exchange.
Next class: Module II Capstone: Mutual Assent
_Mutual Assent_ · Oct 1
Module quiz, debrief, and Battle-of-the-Forms skills assessment. Bring the offer life-cycle map and your § 2-207 walk-through. The capstone runs one question across every case from Lucy through Flender: at what moment does mutual assent crystallize, and what facts do you point to? Come ready to answer. You may be called.