Seller's duty to inform and advise: the competent professional buyer can no longer invoke it

Analysis of a ruling Cass. com., July 8, 2026, n° 25-11.256, by Pierre-Louis Roquet, business law attorney in Lyon.

On January 10, 2014, a quarry operator in Guadeloupe acquired a new crawler excavator, a Liebherr R956HD, from an equipment dealer. The machine was disappointing. Malfunctions accumulated. The buyer sued the seller and the manufacturer for cancellation of the sale and damages. His central grievance did not initially concern the machine's defect. It concerned the seller's silence, whom he reproached for not having warned him that the equipment was not suitable for the intended use. The Basse-Terre Court of Appeal dismissed the claim on December 5, 2024. The Commercial Chamber rejected the appeal on July 8, 2026, in a ruling published in the Bulletin that shifts a long-established criterion in courtrooms.

The ground of appeal was nonetheless based on a formula that commercial litigation practitioners had used for years. The professional seller, the appeal argued, is discharged from his obligation to inform and advise the professional buyer only if the latter operates in the same specialty. By relying solely on the buyer's competence, without taking into account that his specialty differed from that of the seller, the Court of Appeal would have violated former articles 1134, 1135, and 1602 of the Code civil, in their wording prior to October 1, 2016. The buyer's defense line was clear: a quarry operator is not a distributor of construction machinery, so the duty to advise persisted.

Buyer's competence takes precedence over specialty identity

The Cour de cassation responds with a concise proposition. The seller's obligation to inform and advise on the suitability of the equipment sold for its intended use exists, with regard to the professional buyer, only insofar as the latter's competence does not provide him with the means to assess the exact scope of the technical characteristics of the equipment in question. The formula deserves to be read word for word. The criterion is not the quality of professional, which is never sufficient on its own. Nor is it the comparison of respective activities. It is the buyer's concrete ability to understand what he is buying.

The shift is significant. The criterion of specialty identity had the advantage of simplicity: two Kbis extracts, two activity codes, and the debate was framed. It had the disadvantage of artificiality. A seasoned quarryman who has operated machinery for fifteen years knows everything about power, operating mass, and excavation yields, even if his corporate purpose has nothing in common with that of a dealer. Conversely, a professional in the same sector may be completely unfamiliar with new technology. The commercial chamber prioritizes reality over nomenclature. It expressly states that the Court of Appeal was not obliged to ascertain whether the buyer's specialty differed from that of the seller.

The ruling directly concerns industrial and construction companies in the Lyon region, where sales of heavy equipment are most often concluded between experienced professionals. The reasoning applies to a hydraulic excavator, but nothing restricts it to this equipment. It will also apply to a production line, a machining center, or a specific industrial vehicle.

Fourteen years of operation and a previously owned machine are sufficient for the demonstration

There remains the question that will sustain cases: how is competence proven? The ruling provides the two indices retained by the lower court judges. The buyer had been operating his quarrying business for fourteen years. He already owned a hydraulic excavator. From these two observations, the Court of Appeal concluded that he possessed the competence enabling him to assess the exact scope of the technical characteristics of the equipment in question.

Two words in the ruling deserve the litigant's attention. The Court indicates that the lower court judges souverainement (exercising unfettered discretion) retained these elements. The assessment of effective competence therefore falls within the pouvoir souverain of the lower court judges, which in practice shields it from review by the Cour de cassation. The battle is fought before the commercial court and the court of appeal, not before the commercial chamber. This means that the investigation of the case at first instance becomes decisive.

For the professional seller, the consequence is operational. The buyer's experience must be documented in the file, and this must be done at the time of sale rather than at the time of litigation. Seniority of activity, fleet of equipment already operated, qualification of operators, prior technical exchanges: all this must be preserved. It remains equally prudent to have the intended use specified in writing, in the order form or in an annexed technical sheet. The buyer's competence discharges the seller from the duty to advise on the suitability of the equipment; it does not discharge him from his obligations of delivery and warranty.

What the ruling does not decide

The buyer, for his part, must draw the consequences of the chosen ground. Failure to comply with the duty to advise becomes a narrow path once the buyer demonstrates long practice with the equipment in question. More solid grounds are elsewhere: the warranty against vices cachés (latent defects) of article 1641 of the Code civil, when the defect renders the thing unfit for its intended purpose, or failure to comply with the obligation of conformity of delivery. These actions are not hindered by the buyer's competence, with the sole reservation of the apparent defect that he could have verified himself. This is the practical message of the ruling for industrial companies in the Lyon metropolitan area facing faulty equipment: choose the right legal basis before suing.

The ruling does not say everything, and one must be careful not to attribute more to it than it states. It does not set any seniority threshold or competence scale. It does not address the hypothesis of innovative equipment, whose characteristics escape even the experienced professional. It does not rule on the seller's fraudulent misrepresentation (réticence dolosive) who would know of the equipment's unsuitability and conceal it, which falls under a different logic. Finally, it says nothing about the scope of contractual clauses that would modify the duty to advise.

A clarification of scope, finally. The ruling is rendered under the law prior to October 1, 2016, based on former articles 1134 and 1135 of the Code civil, which became articles 1103 and 1104, and article 1602. The general pre-contractual information obligation of article 1112-1 of the Code civil, introduced by the 2016 reform and of ordre public (public policy), remains outside the scope of the decision. The transposition of the solution to this text is not a given. Its own specific economy, particularly the requirement of a legitimate ignorance of decisive information, calls for distinct reasoning that the Court did not have to conduct.

Frequently Asked Questions

Should my supplier have warned me that the equipment was not suitable for my activity?

This now depends on your effective competence, not your sector of activity. If your experience allowed you to assess the exact scope of the equipment's technical characteristics, the seller had no obligation to inform and advise on its suitability for the intended use. Otherwise, the obligation subsists and its breach is sanctioned.

Does the fact that my seller operates in a different specialty from mine still protect me?

No, and this is the main contribution of the July 8, 2026 ruling. The judge is no longer required to ascertain whether the buyer's specialty differs from that of the seller. A difference in activities is no longer sufficient to revive the duty to advise when the buyer's competence is established.

What elements does the judge retain to characterize my competence?

In this case, two observations led to the decision: fourteen years of quarry operation and prior possession of a hydraulic excavator. The judge reasons by concrete indices, drawn from the seniority of the activity and the effective practice of comparable equipment. This assessment falls within his pouvoir souverain.

Can I still obtain the cancellation of the sale of defective equipment?

Yes, but by changing the legal basis. The warranty against vices cachés allows for cancellation when the defect renders the thing unfit for its intended purpose. The obligation of conformity of delivery offers a second avenue. These actions are not neutralized by your professional competence.

How should a seller of industrial equipment organize their proof?

By building the file from the moment of sale. The client's business seniority, their equipment fleet, the qualification of their operators, and the content of prior technical exchanges must be preserved. It is also recommended to have the intended use specified in writing, which secures the seller while clarifying the buyer's expectation.

Is the general information obligation of the Code civil concerned?

No. The ruling concerns the law prior to the 2016 reform and does not rule on article 1112-1 of the Code civil. This text, of ordre public, is subject to specific conditions, notably the legitimate ignorance of decisive information. Its combination with the commented solution remains to be clarified.

Can a contractual clause exclude the seller's duty to advise?

The ruling does not address this question. In practice, the wording of the order form and technical annexes plays a considerable role, particularly when it records the intended use and the recommendations given. A contractual review upstream is better than a discussion about the clause at the litigation stage.

Sources

• Cass. com., July 8, 2026, appeal no. 25-11.256, published in the Bulletin
• Code civil, article 1602
• Code civil, article 1103
• Code civil, article 1104
• Code civil, article 1112-1
• Code civil, article 1641
• Code civil, former articles 1134 and 1135, in their wording prior to October 1, 2016