Buyer v. Vendor: Perfect Tender, Acceptance, and Cure Under UCC Article 2

Short Answer

Buyer did not rightfully reject. Whatever leverage the perfect-tender rule (UCC § 2-601) gave Buyer on March 15 evaporated through the operation of § 2-606: Buyer accepted the widgets by (1) signifying acceptance after a reasonable opportunity to inspect (the March emails praising performance), (2) failing to make an effective rejection within the contractual 10-day window or any "reasonable time" under § 2-602(1), and (3) committing acts inconsistent with the seller's ownership (eight weeks of commercial use and repainting 600 units). Revocation of acceptance under § 2-608 is also unavailable — the defect was patent, known, and not substantially impairing, and the goods have been substantially changed. Buyer's only surviving remedy, if any, is a claim for breach-of-warranty damages on accepted goods under §§ 2-607(3)(a) and 2-714(2) — a remedy measured in diminished value, not a 40% refund — and even that claim is jeopardized by the lateness of the May 10 notice. Vendor's replacement offer, though likely unnecessary at this stage, independently defeats any rejection-based theory via § 2-508. On these facts, Vendor is well-positioned for summary judgment on wrongful rejection; the only genuinely triable issue is the quantum (and possibly the survival) of Buyer's § 2-714 damages.

I. Governing Framework

This is a sale of goods (custom widgets), so UCC Article 2 governs. The analysis proceeds in the sequence the Code itself imposes:

1. Conformity of tender — § 2-601 (perfect tender), read with § 1-303 (course of dealing / usage of trade) and § 2-313 (express warranties).
2. Rejection mechanics and timeliness — §§ 2-602, 2-513, and the parties' contractual inspection-and-acceptance clause.
3. Acceptance — § 2-606, and its consequences under § 2-607.
4. Revocation of acceptance — § 2-608 (the fallback once acceptance has occurred).
5. Cure — § 2-508.
6. Remedies for accepted goods — §§ 2-607(3)(a), 2-714, 2-717.

The critical structural point: the perfect-tender rule is a right of rejection, not a right of price adjustment. Once goods are accepted, § 2-601 drops out entirely; § 2-607(2) provides that acceptance "precludes rejection of the goods accepted," and the buyer's remedies shift to the damages regime of § 2-714, subject to the notice bar of § 2-607(3)(a). Buyer's demand — keep the goods, keep using them, and take 40% off — is a remedy the Code channels exclusively through § 2-714/§ 2-717, not through rejection. Framing matters, and Buyer has framed its demand under the wrong branch of the Code.

II. Was the Tender Nonconforming? (Probably Yes — But Only Barely, and It's Contestable)

Buyer's position. Section 2-106(2) defines goods as "conforming" when they are "in accordance with the obligations under the contract." The purchase order specified charcoal gray by color reference number; the goods arrived navy. Under § 2-313(1)(b), a description of the goods that is part of the basis of the bargain creates an express warranty that the goods will conform to the description. A specified color reference number is a description. Under the perfect-tender rule of § 2-601, "if the goods or the tender of delivery fail in any respect to conform to the contract, the buyer may reject the whole." Courts applying § 2-601 have honored rejections for trivial deviations; the classic teaching is that Article 2 rejected the common-law "substantial performance" doctrine for single-delivery sales contracts. Substantial performance is not a defense to rejection. So, at the moment of tender, navy-instead-of-charcoal was a nonconformity, and Buyer could have rejected on March 15 or shortly thereafter.

Vendor's counter — trade usage as a conformity-definer. Section 1-303(d) makes usage of trade relevant "in ascertaining the meaning of the parties' agreement" and capable of supplementing or qualifying its terms; § 2-202 lets trade usage explain or supplement even a final writing. Here, "[i]ndustry practice treats minor color variations as acceptable for functional components," and the PO "emphasized performance criteria — load capacity and durability — with a color reference number but no rejection clause for shade variance." Vendor will argue the agreement, properly construed with its commercial context, treated the color reference as approximate for these functional components, so the tender conformed and § 2-601 never triggers.

Assessment. Vendor's trade-usage argument is respectable but not a clean winner. Section 1-303(e) requires express terms to control over trade usage where they cannot reasonably be construed as consistent; navy versus a specific charcoal reference number is a stretch for "minor shade variance" — navy and charcoal are different colors, not shades of one color, and the buyer's showroom use (confirmed by the architect's contrast findings) shows color mattered to this buyer. A court would likely find at least a colorable nonconformity, or treat conformity as a fact question. But Vendor does not need to win this point, because the acceptance analysis below is dispositive regardless. The trade-usage evidence does critical secondary work, however: it gives Vendor "reasonable grounds to believe the tender would be acceptable" for purposes of cure under § 2-508(2), and it bears on how "substantial" any impairment is under § 2-608.

III. Rejection: Ineffective as a Matter of Law

Even assuming nonconformity, a § 2-601 rejection is only rightful if it is also effective, and § 2-602(1) requires rejection "within a reasonable time after . . . delivery or tender" with seasonable notice to the seller. Three independent problems sink Buyer's May 10 "rejection":

1. The contractual 10-day clause. The contract contains "a standard inspection-and-acceptance clause requiring notice within 10 days." Under § 1-302(b), the parties may fix by agreement a time for performance of Code obligations so long as it is not manifestly unreasonable; a 10-day inspection window for a patent, visually obvious defect like color is plainly reasonable — the nonconformity was discoverable the moment the crates were opened. Section 2-513 gave Buyer the right to inspect before acceptance; ten days was ample to exercise it for a defect requiring nothing more than eyesight. Notice came on May 10 — fifty-six days after delivery, more than five times the contractual window. This is not a close call.

2. "Reasonable time" fails even without the clause. Reasonable time under § 1-205 depends on the "nature, purpose, and circumstances" of the action. For latent defects (an engine that seizes after months), weeks or months can be reasonable. For a patent aesthetic defect, courts routinely hold delays of even a few weeks unreasonable, especially between merchants. Eight weeks of silence — punctuated by emails praising the widgets — is unreasonable as a matter of law. And the March emails are devastating on a related front: they negate any suggestion that Buyer was still inspecting or reserving judgment.

3. Buyer never behaved like a rejecting party. Section 2-602(2)(a) provides that after rejection, "any exercise of ownership by the buyer with respect to any commercial unit is wrongful as against the seller." A buyer who rejects must hold the goods with reasonable care for the seller's disposition (§ 2-602(2)(b)); a merchant buyer has salvage duties under §§ 2-603/2-604. Buyer did the opposite: it installed all 1,000 widgets, operated them commercially for eight weeks, painted 600 of them black, kept using them after the purported rejection, and demanded a price concession while retaining and using the goods. That is not rejection; that is acceptance with a renegotiation demand. Continued use after a purported rejection generally either invalidates the rejection or re-accepts the goods, absent narrow circumstances (e.g., buyer's reasonable mitigation or lack of alternatives — a mobile home the buyer must live in) that have no analog here.

Conclusion on rejection: untimely, procedurally defective, and contradicted by conduct. Ineffective.

IV. Acceptance Occurred Under Every Prong of § 2-606

Section 2-606(1) provides three independent routes to acceptance. Buyer satisfies all three — a rare trifecta:

• § 2-606(1)(a) — signification. After a reasonable opportunity to inspect, Buyer "signifie[d] . . . that the goods are conforming or that he will take or retain them in spite of their nonconformity." The March emails praising widget performance, sent post-delivery with the color in plain view, signify retention. Installation of all 1,000 units does the same.

• § 2-606(1)(b) — failure to make an effective rejection. As shown in Part III, no effective rejection occurred within the 10-day contractual period or any reasonable time. Acceptance followed by operation of law once the rejection window closed — realistically by late March.

• § 2-606(1)(c) — acts inconsistent with the seller's ownership. Painting 600 widgets black is the paradigm case: a permanent physical alteration that destroys Vendor's ability to retake and resell the goods as tendered. Eight weeks of revenue-generating commercial use compounds it. Courts treat far less — minor modification, brief post-notice use — as (1)(c) acceptance.

Consequences (§ 2-607): Buyer must pay at the contract rate for goods accepted (§ 2-607(1)); acceptance precludes rejection (§ 2-607(2)); and because the color defect was known and patent at acceptance (not an acceptance on the reasonable assumption of cure), acceptance cannot be revoked on account of it unless § 2-608's narrow gate opens. It does not, as shown next. The burden of establishing breach as to accepted goods also shifts to Buyer (§ 2-607(4)).

V. Revocation of Acceptance (§ 2-608): Foreclosed Four Ways

Once goods are accepted, the buyer's only path back to throwing them at the seller is revocation, which — unlike rejection — abandons perfect tender for a substantial-impairment standard. Buyer fails every element:

1. No qualifying acceptance. Section 2-608(1) permits revocation only where the buyer accepted (a) on the reasonable assumption the nonconformity would be cured and it was not, or (b) without discovery of the nonconformity induced by difficulty of discovery or seller's assurances. Neither fits. The color was visible on day one (no difficulty of discovery, no seller assurances alleged), and Buyer never conditioned acceptance on a cure — it said nothing about color for eight weeks.

2. No substantial impairment. The standard is whether the nonconformity "substantially impairs its value to him" — a subjective-needs test judged objectively on the evidence. Buyer's best facts: the architect's confirmation that navy "created contrast issues in the showroom design," i.e., a particularized aesthetic need. But Buyer's own conduct refutes substantial impairment: it praised performance, used every unit commercially for eight weeks, and solved 60% of the problem with a coat of paint. A defect fully remediable by repainting — and tolerated in active use for two months — does not substantially impair value. Industry practice treating minor color variance as acceptable for functional components further undercuts objective substantiality. The 40% refund demand is wildly disproportionate to a repaint-cost remedy and reads as opportunism, which courts weigh.

3. Timing. Revocation must occur "within a reasonable time after the buyer discovers or should have discovered the ground for it" — the same eight-week problem, worse, because the ground (color) was discoverable at delivery.

4. Substantial change in condition. Revocation must occur "before any substantial change in condition of the goods which is not caused by their own defects." Painting 600 units is a substantial change caused by Buyer, not by the defect. As to those 600 at minimum, revocation is dead on arrival; and continued post-revocation use would independently defeat or offset it.

VI. Cure (§ 2-508): Vendor's Belt-and-Suspenders

Cure doctrine technically applies to rejected goods, and since Buyer accepted, Vendor may not even need it. But it matters in two ways:

First, if a court somehow deemed the May 10 rejection effective, § 2-508(2) gives a seller a "further reasonable time to substitute a conforming tender" where the seller "had reasonable grounds to believe" the tender "would be acceptable with or without money allowance." Vendor's grounds are strong: industry usage accepting minor color variance on functional components, a PO emphasizing performance over aesthetics, and eight weeks of buyer praise. Vendor seasonably notified Buyer and offered immediate replacement with a two-week lead time — a textbook conforming substitute tender. A buyer who refuses a proper cure and instead demands to keep the nonconforming goods at a 40% discount converts any rightful rejection into a wrongful one: refusal of cure while retaining and using the goods is itself acceptance and, if payment is withheld, breach. Buyer cannot simultaneously stand on perfect tender and refuse the perfect tender Vendor offers.

Second, the cure offer frames damages. Buyer's refusal of a costless full replacement caps its plausible loss at, at most, the temporary inconvenience of a two-week swap — and bears on mitigation (§ 1-305's principle of putting the aggrieved party in the position performance would have, no better).

Buyer's counter — that cure is unavailable after the contract time for performance without "reasonable grounds," or that replacement two weeks late is itself imperfect — fails because § 2-508(2) exists precisely for post-deadline cure and the reasonable-grounds showing here is robust.

VII. What Buyer Has Left: A (Shaky) § 2-714 Damages Claim

Acceptance does not waive breach if the buyer gives notice "within a reasonable time after he discovers or should have discovered any breach" (§ 2-607(3)(a)) — failing which the buyer is "barred from any remedy." Two sub-issues:

• Is the May 10 notice timely for § 2-607(3)(a)? This "reasonable time" is judged more leniently than rejection timeliness (its purpose is to enable settlement and cure, not to unwind the sale), and merchants get less slack than consumers. Eight weeks after a patent defect, from a merchant buyer, against a 10-day contractual notice clause, is vulnerable — a court could bar the claim entirely. This is Buyer's existential risk. That said, many courts treat § 2-607(3)(a) reasonableness as a jury question unless the delay is extreme; eight weeks sits near the line, and Vendor suffered no evident prejudice (it can still cure). Call this the one issue with genuine litigation uncertainty.

• If notice survives, the measure. Section 2-714(2): difference at the time and place of acceptance between the value of goods accepted and the value as warranted — typically proved here by (a) cost of repainting the remaining 400 units (Buyer already self-helped on 600, fixing its own damages metric), plus (b) any incidental costs (§ 2-715), minus mitigation failures (refusing free replacement). On any realistic record this is a low-single-digit percentage of contract price — nowhere near 40%. Buyer may deduct proven damages from the price on notice (§ 2-717), but a unilateral 40% withholding beyond provable damages would itself be a breach exposing Buyer to a § 2-709 price action.

VIII. Summary-Judgment Posture

• Vendor's motion — acceptance / no rightful rejection: GRANT. The material facts are undisputed and largely from Buyer's own conduct and documents: delivery March 15; 10-day contractual notice clause; patent color deviation; March emails praising the goods; eight weeks of full commercial use; 600 units painted; notice May 10; continued use thereafter. On these facts, no reasonable factfinder could find an effective rejection under § 2-602 or avoid acceptance under § 2-606(1)(a)–(c). Although "reasonable time" is ordinarily a fact question, courts resolve it as a matter of law where the delay is flagrant against a patent defect and a contractual deadline — this is that case. Revocation under § 2-608 fails as a matter of law on elements (1)(a)/(b) (no cure-assumption, no discovery difficulty) and the substantial-change bar (the painting), without ever reaching the more fact-bound substantial-impairment question.
• Buyer's cross-motion for rejection/revocation or a 40% price adjustment: DENY. Perfect tender is unavailable post-acceptance; the architect's contrast testimony creates, at most, a dispute about impairment, which is immaterial once § 2-608's other elements fail.
• Triable remnant, if any: whether May 10 notice satisfies § 2-607(3)(a) (jury question in many courts; Vendor has a strong argument for a legal bar given the 10-day clause), and if so, the dollar value of § 2-714(2) diminution — essentially a repainting-cost dispute.

Bottom Line

Buyer had a fleeting perfect-tender right in mid-March and extinguished it by conduct: praise, installation, two months of use, and paint. Buyer accepted the widgets, cannot revoke, and cannot leverage § 2-601 into a 40% price cut while keeping and using the goods. The Code-compliant paths were (1) timely rejection plus acceptance of Vendor's two-week replacement cure, or (2) acceptance plus prompt notice and a modest § 2-714 diminution claim (roughly the cost of repainting). Having chosen neither, Buyer must accept the goods and pay the contract price, less — at absolute most, and only if its late notice survives § 2-607(3)(a) — provable repaint-measure damages. Its demand for a 40% refund with continued use is legally unsupported, and withholding that amount would put Buyer in breach.

Conclusion

Buyer likely did not rightfully reject. Even assuming navy instead of charcoal was a technical nonconformity under the UCC perfect-tender rule, Buyer accepted the widgets by installing and using them for eight weeks, missing the 10-day notice period, praising performance, and painting 600 units. Buyer must accept the goods, allow Vendor’s cure for any remaining nonconforming units, and cannot keep using the widgets while demanding a flat 40% refund.

Analysis

Under UCC § 2-601, a buyer may reject goods if they fail “in any respect” to conform to the contract. A specified charcoal-gray color reference makes navy at least a possible nonconformity. But the contract emphasized load capacity and durability, all functional specifications were met, there was no shade-variance rejection clause, and trade usage treats minor color differences in functional components as acceptable. Trade usage may supplement or qualify the parties’ agreement under UCC § 1-303. So Vendor has a strong argument the goods substantially conformed commercially, even if not perfectly in shade. (law.cornell.edu) (law.cornell.edu)

Rejection also had to be timely. UCC § 2-602 requires rejection within a reasonable time and seasonable notice; here the contract fixed a 10-day inspection-and-acceptance period. UCC § 1-302 permits parties to set standards for reasonable-time obligations if not manifestly unreasonable. Delivery was March 15, 2024, so the contractual notice deadline was about March 25, 2024. Notice on May 10, 2024 was roughly eight weeks after delivery and therefore ineffective as a rejection. (law.cornell.edu) (law.cornell.edu)

Buyer’s conduct independently establishes acceptance. Under UCC § 2-606, acceptance occurs when the buyer, after opportunity to inspect, fails to make an effective rejection or acts inconsistently with the seller’s ownership. Installing and operating all 1,000 widgets for eight weeks is strong evidence of acceptance; painting 600 black is even stronger because it materially exercises ownership over them. Buyer’s March emails praising performance with no color objection reinforce that Buyer accepted after inspection. (law.cornell.edu)

After acceptance, UCC § 2-607 precludes rejection and requires the buyer to pay the contract price, though it may preserve a damages claim for proven nonconformity after proper notice. Buyer would have to prove actual loss, not simply select a 40% refund while retaining and using the goods. Any damages would more likely be measured by diminished value, reasonable cure costs, or provable consequential loss, subject to mitigation and the contract terms. (law.cornell.edu) (law.cornell.edu)

Revocation of acceptance would also be weak. UCC § 2-608 requires a nonconformity that substantially impairs value to the buyer, timely revocation, and no substantial change in the goods not caused by their defect. The architect’s later confirmation of showroom contrast issues helps Buyer show some subjective aesthetic impairment, but the color was immediately discoverable, Buyer waited eight weeks, kept using the widgets, and altered 600 of them. That is not a strong revocation case. (law.cornell.edu)

Finally, Vendor offered immediate replacement with a two-week lead time. UCC § 2-508 gives a seller a right to cure in appropriate cases, especially where the seller had reasonable grounds to believe the tender would be acceptable. Given industry practice, the functional nature of the widgets, no rejection clause for shade variance, and Buyer’s initial praise, Vendor’s cure offer is commercially reasonable. (law.cornell.edu)

Result: Buyer must accept the widgets subject to Vendor’s cure. Buyer did not rightfully reject, cannot demand a 40% refund while keeping the widgets in use, and at most may pursue limited, proven damages for any uncured color-related loss.

The Buyer has accepted the widgets and must accept them subject to the Vendor's offered cure; any purported rejection is ineffective.[1][2]

Under the UCC perfect tender rule (UCC § 2-601), if goods fail in any respect to conform to the contract, the buyer may reject the whole, accept the whole, or accept some and reject the rest (subject to other Article 2 provisions). Here, the widgets fully satisfied the emphasized performance criteria (load capacity and durability) but differed in color (navy instead of charcoal gray). The purchase order referenced a color number yet contained no explicit rejection clause for shade variance, the contract stressed functional performance over aesthetics, and industry practice treats minor color variations as acceptable for functional components. The architect's later confirmation of contrast issues does not override these contract terms or trade usage at the time of tender. Thus, even if the color constituted a technical non-conformity, it was not material enough to trigger rejection rights in this context.[3]

Acceptance is governed by UCC § 2-606. Acceptance occurs when the buyer, after a reasonable opportunity to inspect, signifies conformity (or willingness to retain despite non-conformity), fails to make an effective rejection, or performs any act inconsistent with the seller's ownership. Multiple factors establish acceptance here:

• Contractual inspection clause: The agreement required notice within 10 days. Delivery occurred on March 15, 2024; notification of the color issue came on May 10—nearly two months later—rendering any rejection untimely and ineffective.[2]
• Use after inspection and opportunity to inspect: The Buyer installed and operated all 1,000 widgets for eight weeks, during which the color was immediately apparent. March emails praised performance with no color complaint. Extensive use and operation constitute acceptance by conduct.[4]
• Acts inconsistent with seller's ownership: Painting 600 widgets black to match the showroom is a clear act of dominion and alteration inconsistent with rejection or continued seller ownership.[4]
• Substantial performance and industry context: The widgets met core functional specifications; any color deviation was minor per industry norms for such components. Substantial performance supports acceptance rather than rejection under the perfect tender framework when qualified by these facts.[5]

The Buyer cannot now revoke acceptance under UCC § 2-608, which requires substantial impairment of value, timely action (within a reasonable time after discovery and before substantial change in condition), and either acceptance on the assumption of cure (not shown here) or undiscoverable non-conformity. Eight weeks of use, painting, and installation created substantial changes; the color issue was discoverable immediately.[6]

The Vendor offered cure under UCC § 2-508 (seasonable notice of intention to cure via replacement with two-week lead time, consistent with reasonable grounds that the tender would be acceptable in this performance-focused context). The Buyer must permit this cure rather than demand a 40% refund while retaining and continuing to use the goods. Acceptance precludes rejection (UCC § 2-607) but preserves other remedies (e.g., damages for any proven breach, subject to timely notice of breach). The Buyer's demand for a refund and retention instead of accepting cure is inconsistent with these rules.[7][8]

In summary, the widgets are accepted. The Buyer must accept them (or the conforming cure) and cannot rightfully reject or unilaterally demand a refund. Any residual issues are addressed through damage claims, not rejection.

Conclusion

Buyer did not rightfully reject the widgets. At most, the navy color was a technical nonconformity, but Buyer accepted the goods by failing to reject within the contractual 10-day inspection period, installing and using all 1,000 widgets for eight weeks, praising performance, and painting 600 of them black. Buyer must therefore accept and pay for the widgets, subject only to Vendor’s offered cure/replacement or, in a weak fallback, limited accepted-goods damages if Buyer can prove timely breach notice and actual loss. A 40% refund while keeping the widgets in use is unlikely to be allowed.

Governing UCC rules

Under UCC § 2-601, the perfect-tender rule allows a buyer to reject goods if the goods or tender “fail in any respect” to conform to the contract. Goods conform when they are in accordance with the contract obligations. Thus, a specified color term can matter even if the goods function properly. (law.cornell.edu)

But rejection must be timely and procedurally effective. UCC § 2-602 requires rejection within a reasonable time after delivery or tender and makes rejection ineffective unless the buyer seasonably notifies the seller; after rejection, the buyer’s exercise of ownership over the goods is wrongful. (law.cornell.edu)

A buyer accepts goods if, after a reasonable opportunity to inspect, it signifies it will keep them, fails to make an effective rejection, or does an act inconsistent with the seller’s ownership. Acceptance of part of a commercial unit is acceptance of the whole unit. (law.cornell.edu)

Once goods are accepted, the buyer must pay the contract rate, and acceptance precludes later rejection of the accepted goods. The buyer may still have other UCC remedies for nonconformity, but only if it gives notice of breach within a reasonable time after discovering or when it should have discovered the breach. (law.cornell.edu)

Application

1. Conforming goods / perfect tender

The widgets met the load-capacity and durability requirements, but they were navy instead of the specified charcoal gray. Because the purchase order included a color reference number, the safer view is that Vendor made a technically nonconforming tender. Under the perfect-tender rule, Buyer likely had an initial right to reject promptly on delivery.

Industry practice helps Vendor, but probably does not erase the express color term. UCC § 1-303 allows usage of trade to supplement or qualify an agreement, but express terms prevail over trade usage when they cannot reasonably be reconciled. Here, the trade practice that minor color variations are acceptable supports Vendor’s position that the defect was commercially minor, but the express charcoal-gray reference still makes navy at least a technical mismatch. (law.cornell.edu)

2. Substantial performance

Buyer should not win merely by saying “perfect tender” after accepting and using the goods. Although UCC initial rejection is stricter than common-law substantial performance, Vendor substantially performed in the practical sense: all widgets met the emphasized functional specs, and Buyer’s March emails praised performance. That matters especially for revocation and damages because the defect did not undermine the widgets’ functional value.

The architect’s later statement helps Buyer show that color had some showroom significance, but it does not overcome the fact that the defect was visible at delivery, the goods worked properly, Buyer used them for eight weeks, and Buyer altered most of them.

3. Use after inspection = acceptance

Color was an obvious, immediately inspectable characteristic. Buyer had a reasonable opportunity to inspect on or shortly after March 15, 2024. Instead of rejecting, Buyer installed and operated all 1,000 widgets for eight weeks. Painting 600 widgets black is especially strong evidence of acceptance because it is an act inconsistent with Vendor’s ownership. UCC § 2-606 treats failure to make an effective rejection after inspection, and acts inconsistent with the seller’s ownership, as acceptance. (law.cornell.edu)

Buyer’s continued use while demanding a 40% refund also conflicts with a rejection theory. A rejecting buyer must seasonably reject and hold the goods for the seller, not keep using and modifying them as its own. (law.cornell.edu)

4. Timeliness of rejection

The contract required notice within 10 days. UCC § 1-302 allows parties to fix a time for action where the UCC otherwise requires action within a reasonable time, so long as the agreed time is not manifestly unreasonable. A 10-day inspection period for an obvious color issue in commercial goods is likely enforceable. (law.cornell.edu)

Delivery occurred on March 15, 2024; notice was not given until May 10, 2024, about 56 days later and well beyond the 10-day inspection-and-acceptance period. That is untimely under both the contract and UCC § 2-602’s reasonable-time requirement. Therefore, Buyer’s attempted rejection was ineffective. (law.cornell.edu)

5. Revocation of acceptance

If Buyer tries to reframe the May 10 complaint as revocation of acceptance, that also likely fails. UCC § 2-608 allows revocation only when the nonconformity substantially impairs the value of the goods to the buyer, and revocation must occur within a reasonable time after discovery or when the buyer should have discovered the issue, and before any substantial change in the goods not caused by their own defects. (law.cornell.edu)

Here, Buyer should have discovered the color issue at delivery. Buyer waited eight weeks, used all widgets, praised performance, and painted 600 of them. Painting 600 widgets black is a substantial change not caused by the navy-color defect. The architect’s showroom-contrast evidence may show some aesthetic loss, but it is unlikely to establish timely, valid revocation after this degree of use and alteration.

6. Cure offered

Vendor’s cure offer further weakens Buyer’s position. UCC § 2-508 allows a seller to cure a nonconforming delivery after rejection if the contract time remains, and also allows a further reasonable time to substitute conforming goods where the seller had reasonable grounds to believe the tender would be acceptable. (law.cornell.edu)

Vendor had reasonable grounds to think the delivery would be acceptable: the widgets met all functional specifications, industry practice tolerated minor color variation for functional parts, there was no shade-variance rejection clause, and Buyer initially praised performance without mentioning color. A two-week replacement lead time appears commercially reasonable. Buyer’s refusal of replacement and insistence on a 40% refund while retaining use is therefore not a strong UCC position.

Likely remedy

Because Buyer accepted the widgets, Buyer must pay the contract rate for accepted goods. Acceptance precludes rejection. (law.cornell.edu)

If Buyer preserved any remedy at all, it would be a claim for damages for accepted nonconforming goods under UCC § 2-714, generally measured by the loss caused by the nonconformity or the difference between the value as accepted and as warranted. But § 2-714 requires the notice contemplated by § 2-607, and § 2-607 bars remedies if the buyer fails to notify the seller within a reasonable time after discovering or when it should have discovered the breach. (law.cornell.edu)

Given the 10-day clause, the visible nature of the color issue, the 56-day delay, eight weeks of use, and alteration of 600 widgets, Buyer’s damages claim is weak and may be barred entirely.

Final answer

Buyer did not rightfully reject. The navy color may have been a technical nonconformity under the perfect-tender rule, but Buyer lost any rejection right by failing to give timely notice, installing and using the widgets, praising their performance, and painting 600 of them. Buyer must accept and pay for the widgets, subject at most to Vendor’s offered cure or limited accepted-goods damages if Buyer can prove timely notice and actual loss. Buyer is unlikely to obtain a 40% refund while continuing to use the widgets.

Analysis Under UCC Article 2

1. The Perfect-Tender Rule and Conformity

Under the perfect-tender rule (law.cornell.edu), a buyer may reject goods if the seller’s delivery fails in any respect to conform to the contract. Here, the widgets were functionally compliant but were delivered in navy rather than the specified charcoal gray, so a non-conformity existed. On a strict reading, the color variance gave Buyer the theoretical right to reject—but only if rejection occurred before acceptance and within a reasonable time after delivery (nolo.com).

2. Acceptance Factors Preclude Rejection

Acceptance occurs when a buyer, after a reasonable opportunity to inspect, either signifies that the goods are conforming, fails to make an effective rejection, or takes actions inconsistent with the seller’s ownership (quarles.com; nolo.com).

Buyer’s conduct constitutes acceptance on all three grounds:

• Use after inspection: Buyer installed and operated all 1,000 widgets for eight weeks. This is classic “use after inspection” that is inconsistent with the seller’s ownership rights.
• Failure to reject timely: The contract’s standard inspection-and-acceptance clause required notice within 10 days. Buyer waited eight weeks to raise the color issue. A 10-day window for custom goods is reasonable; eight weeks is not. Even absent the contractual clause, the UCC requires rejection within a “reasonable time” after delivery (nolo.com), and eight weeks of installation and operation is unreasonable as a matter of law.
• Signifying acceptance: Buyer’s March emails praised widget performance with no mention of color, evidencing that the goods were regarded as conforming for their functional purpose.

Because acceptance occurred, rejection is precluded (law.cornell.edu). Buyer may no longer reject the goods; its remedies are limited to revocation of acceptance or damages for breach.

3. Revocation of Acceptance Is Barred

A buyer may revoke acceptance only if:

1. The non-conformity substantially impairs the value of the goods to the buyer; and
2. The buyer accepted either (a) on the reasonable assumption that the seller would cure, or (b) without knowledge of the non-conformity due to difficulty of discovery or the seller’s assurances (nolo.com; quarles.com).

Both conditions fail here:

• No substantial impairment: The purchase order emphasized load capacity and durability, and the widgets met every functional specification. While the architect later claimed contrast issues, Buyer’s own conduct—using all widgets for two months and painting 600 of them—undercuts any assertion that the color variance substantially impaired value. The UCC’s substantial-impairment standard is not satisfied by purely aesthetic preferences when performance criteria are met and the buyer continues to derive use from the goods.
• Substantial change in condition: Even if impairment existed, revocation must occur before any substantial change in the condition of the goods not caused by the non-conformity (nolo.com). Buyer painted 600 widgets black, a substantial alteration caused by Buyer, not by the navy color defect. This act independently bars revocation.

4. Buyer’s Notice of Breach Was Untimely

Under UCC § 2-607(3)(a), a buyer who has accepted goods must notify the seller of breach within a reasonable time after discovery or be barred from any remedy (law.cornell.edu). The color was visible on delivery; Buyer’s March emails confirm inspection occurred. Waiting until May 10—eight weeks later—exceeds any reasonable notice period, especially given the contract’s 10-day requirement. Consequently, Buyer is likely barred from pursuing any remedy for the non-conformity, including damages.

5. Seller’s Right to Cure

The UCC gives a seller two pathways to cure a non-conformity:

• If the time for performance has not expired, the seller may notify the buyer and deliver conforming goods within the contract timeline; or
• If the seller had reasonable grounds to believe the non-conforming goods would be acceptable (with or without a price allowance), the seller may have a reasonable time to provide conforming goods (nolo.com; quarles.com).

Vendor’s offer of immediate replacement with a two-week lead time is a valid cure attempt. Industry practice treating minor color variations as acceptable for functional components supplies the “reasonable grounds” for Vendor to believe the navy widgets would be acceptable. Even if Buyer had rejected timely, Vendor would be entitled to cure. Because Buyer has already accepted, Vendor’s offer to cure remains the proper mechanism to make Buyer whole, and Buyer cannot insist on a 40% refund while retaining the goods.

Conclusion

Buyer has not rightfully rejected the goods and cannot now do so. By installing, operating, and altering the widgets over an eight-week period—far beyond the 10-day contractual notice window—Buyer accepted the goods under UCC § 2-606. Acceptance precludes rejection under § 2-607. Revocation of acceptance is unavailable because the color variance does not substantially impair value and because Buyer’s painting of 600 widgets constitutes a substantial change in condition barring revocation. Furthermore, Buyer’s delayed notice likely forfeits any damage remedy under § 2-607(3)(a).

Accordingly, Buyer must accept the widgets subject to Vendor’s offer to cure (i.e., the two-week replacement). Buyer is not entitled to a 40% refund while continuing to use the goods, and its purported rejection is legally ineffective.