Under UCC 2-204, a contract for the sale of goods forms as soon as the parties’ words or conduct show they reached an agreement, and it can be enforceable even if no one can pinpoint the moment of acceptance or every term is nailed down. The section has three short subsections that together replace the rigid “offer, acceptance, signed paper” sequence with a practical test: did the parties act like they had a deal, did they intend to be bound, and can a court figure out a remedy if something goes wrong? If the answer to those questions is yes, you have a contract.1Legal Information Institute. UCC 2-204 – Formation in General
What Section 2-204 Says
The provision is short and does three things. Subsection (1) says a sales contract can be made “in any manner sufficient to show agreement, including conduct by both parties which recognizes the existence of such a contract.” Subsection (2) says an agreement sufficient to form a contract can be found even though the moment of its making is undetermined. Subsection (3) says the contract does not fail for indefiniteness even if one or more terms are left open, so long as the parties intended to make a contract and there is a reasonably certain basis for giving an appropriate remedy.1Legal Information Institute. UCC 2-204 – Formation in General
Each subsection targets a different reason a party might later claim no contract exists: no signed paper, no identifiable moment of acceptance, or missing terms. The code shuts each argument down as a technicality that should not override the reality of what the parties did.
Forming a Contract Through Conduct
The language in 2-204(1) is deliberately broad. Written purchase orders, email threads, phone calls, handshake deals, and the parties’ behavior all qualify if they demonstrate mutual assent. Most disputes under this subsection involve the conduct piece. If a manufacturer starts producing custom parts after receiving a verbal order, that production signals a binding agreement. If a buyer accepts a shipment and begins using the goods, the buyer’s conduct recognizes a contract even without a signature on file.
Judges evaluating these cases look at the full picture: emails, delivery logs, partial payments, and prior dealings. The principle is simple. You cannot benefit from someone else’s performance and then claim no contract existed because nobody signed anything.
Section 2-206 reinforces the same flexibility on the acceptance side. An order for goods to be shipped promptly can be accepted either by promising to ship or by actually shipping the goods. Even shipping non-conforming goods counts as acceptance unless the seller notifies the buyer that the shipment is only an accommodation.2Legal Information Institute. UCC 2-206 – Offer and Acceptance in Formation of Contract A seller who sends the wrong product cannot later say it never accepted the offer.
No Precise Moment of Agreement Required
In a classroom hypothetical, you can point to the instant the offeree says “I accept.” Real commercial negotiations almost never work that way. Section 2-204(2) accounts for this: a contract can be enforceable even if no one can identify the precise moment it came into existence.1Legal Information Institute. UCC 2-204 – Formation in General
This provision kills a familiar litigation tactic. Without it, a party who regrets a deal could argue the contract is void because the offer and acceptance never aligned in one identifiable instant. The code treats that argument as a technicality. If the evidence shows the parties were operating under a shared understanding, the deal holds whether or not a judge can reconstruct the exact chronology.
Open Terms and the Quantity Exception
Traditional contract law took a hard line: leave a material term blank and you had no contract. Section 2-204(3) reverses that presumption. A contract does not fail for indefiniteness as long as two conditions are met: the parties intended to create a binding agreement, and there is a reasonably certain basis for a court to calculate a remedy if something goes wrong.1Legal Information Institute. UCC 2-204 – Formation in General
The “reasonably certain basis” standard is doing heavy lifting. A judge must be able to look at the circumstances and figure out what the injured party is owed. If a buyer refuses to pay for a shipment of steel, the court needs enough information to calculate damages even if the parties never pinned down every detail. The code provides a set of default rules, called gap-fillers, that supply missing terms. These defaults reflect what reasonable commercial parties would have agreed to if they had thought about it.
There is one critical exception: quantity. A contract that fails to state a quantity is generally unenforceable beyond whatever quantity appears in the writing.3Legal Information Institute. UCC 2-201 – Formal Requirements Statute of Frauds The gap-fillers can supply a reasonable price, a reasonable delivery time, or a default delivery location, but they cannot invent how much the buyer wanted. Quantity is the one term the parties need to nail down for 2-204(3) to save the deal.
How the Gap-Fillers Finish an Incomplete Deal
Because 2-204(3) relies on the code’s default terms to supply what the parties left out, those defaults are effectively part of every sales contract unless the parties negotiated something different. The main ones:
- Price. If nothing is said about price, or the parties tried to agree on one and failed, the default is a reasonable price at the time of delivery. If, however, both parties intended not to be bound unless a price was fixed and they never fixed one, there is no contract. The buyer must return any goods already received or pay their reasonable value, and the seller must refund any payments already made.4Legal Information Institute. UCC 2-305 – Open Price Term
- Delivery location. Unless the contract says otherwise, the default delivery point is the seller’s place of business, or the seller’s residence if there is no business location. For goods both parties know are stored somewhere else at the time of contracting, that location becomes the delivery point.5Legal Information Institute. UCC 2-308 – Absence of Specified Place for Delivery
- Payment timing. Payment is due when and where the buyer receives the goods. No silent net-30 or net-60 credit term is implied. If you want extended payment terms, put them in the contract.6Legal Information Institute. UCC 2-310 – Open Time for Payment or Running of Credit Authority to Ship Under Reservation
- Time for shipment or delivery. When the contract does not specify a timeline, the default is a reasonable time under the circumstances. What counts as reasonable depends on the nature of the goods, industry norms, and any prior dealings.7Legal Information Institute. UCC 2-309 – Absence of Specific Time Provisions Notice of Termination
- Risk of loss. If the contract calls for the seller to ship goods by carrier but does not name a destination, risk passes to the buyer once the seller delivers the goods to the carrier. If the contract requires delivery at a specific destination, the seller bears the risk until the goods arrive. For in-person transactions with no carrier involved, risk passes on the buyer’s receipt of the goods if the seller is a merchant, or on tender of delivery if the seller is not.8Legal Information Institute. UCC 2-509 – Risk of Loss in the Absence of Breach
The risk-of-loss default is where businesses most often get caught out. A seller who hands a pallet of goods to a freight carrier without naming a destination in the contract has shifted the risk of theft or damage in transit to the buyer. A buyer assuming the seller carries the risk until arrival is wrong under the default. Spelling out shipping terms explicitly avoids that mismatch.
What 2-204 Does Not Do
Forming a contract under 2-204 is not always the end of the question. Two other code provisions can still block enforcement or change what the deal says.
The statute of frauds in 2-201 requires a signed writing for any sale of goods priced at $500 or more. The writing can be informal, including a purchase order, invoice, or email, as long as it indicates a contract, states a quantity, and is signed by the party you are trying to hold to the deal.3Legal Information Institute. UCC 2-201 – Formal Requirements Statute of Frauds Three exceptions let an oral contract be enforced without a writing: specially manufactured goods the seller has already started making, an admission in court that a contract existed, and partial performance to the extent of payment made and accepted or goods received and accepted. So a contract can form under 2-204 and still be unenforceable because 2-201 is not satisfied.
Section 2-207 handles the mismatched-forms scenario that 2-204 does not address directly. When a buyer sends a purchase order and the seller sends back an acknowledgment with different terms, 2-207 decides which terms survive. An acceptance containing additional or different terms still operates as an acceptance rather than a counteroffer, and between merchants the additional terms often become part of the contract. Directly conflicting terms knock each other out, and the code’s gap-fillers step in.9Legal Information Institute. UCC 2-207 – Additional Terms in Acceptance or Confirmation So the contract formed under 2-204 may contain terms neither party put on their form.
The through-line across all three sections is the same. The code wants deals that commercial parties treated as real to be enforced as real, with defaults filling the gaps and formalities taking a back seat to what the parties actually did.