[Direct answer]In the Beijing area, if a buyer refuses to return goods that were delivered incorrectly by the seller, this constitutes unjust enrichment, as the buyer's possession of the goods lacks a contractual basis. According to Article 984 of the Civil Code of the People's Republic of China (effective January 1, 2021), if a beneficiary obtains an unjust enrichment without legal justification, the person who suffered the loss may request the beneficiary to return the benefits obtained; if the buyer knowingly possessed and used the goods despite the delivery error, they must also compensate for the losses in accordance with Article 987. It is important to distinguish that if the delivered goods are still within the scope of the order (with quantity or specifications mismatches), the remedies should be sought under the contract rather than unjust enrichment. It is recommended that buyers promptly contact the seller to request a return or exchange and not to use or resell the goods without authorization. For more details, please refer to the following link:Business and contract dispute resolution services for enterprises.

1. Problem background and typical scenarios

Mistakes in deliveries are a common occurrence in online shopping and supply chains: wrong colors, models, or specifications, cross-shipping of two orders, and even receiving completely unrelated goods. Some buyers may think, "It's your mistake. Just keep it as a credit," or even resell the goods for profit. Legally, buyers have no contractual rights or obligations to the goods. Possession of the goods constitutes unjust enrichment; if the goods have been used or consumed, they should be returned at a value-for-value basis. Sellers should also pay attention to the following: After a delivery error, they should promptly contact the buyer, provide a return solution, and bear the costs. If they ignore the issue for a long time, it will weaken their own claims. When courts in Beijing handle such disputes, they usually take the communication records and the current status of the goods as the main basis. For cases involving the recovery of payments and enforcement, relevant evidence can be combined with the above information to support the claims.Creditor-debtor relations and enforcement case servicesHandle it.

II. Key points of contention

The focus of the dispute lies in four aspects. Firstly, the distinction between unjust enrichment and contractual relations: the misdelivery of goods completely outside the scope of the order constitutes unjust enrichment; if the quantity or specifications of the goods delivered do not conform to the order, it constitutes a breach of contract and should be handled in accordance with contractual rules such as inspection notices and overdelivery. Secondly, the scope of return: return the original goods if they are still available; return the goods at a discounted price if they have been used or lost; and return the goods to the bona fide beneficiary within the limits of the existing benefits (Article 986), while the malicious beneficiary shall bear full responsibility for return and compensation (Article 987). Thirdly, the burden of expenses: the return shipping fees and storage fees shall generally be borne by the party at fault, that is, the merchant, unless otherwise agreed or the buyer is clearly at fault. Fourthly, whether the goods can be retained as a set-off for debts: there is no legal basis for using the misdelivered goods to offset other claims, and unilateral retention will not be supported. For transactions involving accounts, reference can be made to relevant provisions.Special services and other case servicesClarify.

III. Professional analysis by Hengluo Law Firm

Based on Hengluo's practical observations in handling related disputes, delivery errors are prone to escalate into major issues: buyers refuse to return the goods, merchants sue for unjust enrichment, and the two parties engage in legal disputes over shipping fees and depreciation, with litigation costs often far exceeding the value of the goods. Hengluo lawyers usually advise that: after delivering the wrong goods, merchants should immediately contact the buyers, take the initiative to bear the return shipping fees and provide a clear return address and deadline; buyers should return the goods within a reasonable time limit, and if they need to keep them, they should negotiate with the merchants for compensation or exchanges. They should never use or resell the goods without authorization. Once they are identified as having obtained unjust enrichment, the compensation scope will be extended to the full value of the goods. Both parties should keep written records of their communication, and retain logistics certificates and signing records for the return of goods. For cases involving bulk delivery errors or cross-orders from merchants, follow-up measures can be taken.Creditor-debtor relations and enforcement case servicesUnified disposal.

IV. Practical suggestions and legal basis

The core basis is Article 984 of the Civil Code of the People's Republic of China (effective from January 1, 2021), which governs unjust enrichment and its return, Article 985, which limits the return of benefits obtained in good faith, Article 986, which requires the return of benefits obtained in bad faith and compensation for losses, Article 988, which governs the return of benefits transferred to third parties without compensation, and Article 188, which sets a three-year statute of limitations. If there are quantity discrepancies within the scope of the order, Article 629 (handling of excess deliveries) and Article 621 (obligation to notify within the inspection period) also apply. Practical suggestions include: Buyers should provide written feedback immediately and return the goods according to the seller's guidelines; sellers should actively bear the cost of returning the goods and specify a processing deadline; both parties should prioritize negotiating a settlement for returning the goods; and for more contentious disputes, litigation should be pursued. Specific solutions can be sought with the help of legal professionals.Special services and other case servicesDevelop.

5. Henglu Law Firm's Reminder

"Don't keep, use, or resell items that aren't yours." Firstly, if you receive the wrong goods, you should contact the seller immediately and keep the chat records; secondly, return the goods through official logistics channels, keep the tracking number and receipt records, and save the invoices; thirdly, if you really need to keep the goods, confirm with the seller in writing about compensation or exchange; fourthly, if the seller refuses to return the goods and the goods have been used or disposed of, you may be required to compensate for the losses in addition to returning the goods. If the amount is large and the circumstances are serious, it may even constitute a criminal offense. Don't let the small losses lead to big ones. When handling similar cases in the Beijing area, Hengluo usually advises both parties to settle the matter by returning the goods and not to engage in further disputes. If you need assistance, please contact us.Business and contract dispute services for enterprises.

VI. Frequently Asked Questions

Q1: If the seller delivers the wrong goods and the buyer does not return them, does this constitute unjust enrichment? Can the seller sue the buyer for it?

This constitutes unjust enrichment, and the merchant can sue the buyer. The buyer's receipt of the wrongly delivered goods lacks a contractual basis. According to Article 986 of the Civil Code, the merchant, as the party suffering the loss, has the right to request the return of the goods or corresponding benefits; if the goods have been used or lost, the merchant may request a refund at a reduced price. If the buyer refuses to return the goods despite being notified by the merchant and knowing that the goods were delivered incorrectly, the buyer is considered a person who has unjustly enriched himself according to Article 987, and should compensate for the losses according to law. When suing, the merchant needs to provide evidence to prove the content of the delivery, the buyer's receipt of the goods, and the buyer's refusal to return the goods. Conversely, if the goods are within the scope of the order (with differences in specifications or quantities), the merchant should claim according to the contractual rules rather than on the basis of unjust enrichment.

Q2: What evidence do I need to prepare for a dispute over incorrect deliveries?

The core evidence includes: the merchant's shipping documents and logistics records (to prove the actual product name, specifications, and quantity shipped), the buyer's order screenshots (to prove the agreed upon products), the buyer's receipt records and unboxing videos (to prove the receipt of the goods and the current condition of the products), the communication records between the two parties (whether the merchant notified the buyer of the wrong shipment, whether the buyer acknowledged it, and the negotiation on returning the goods), the logistics proof of returning the goods (when the goods have been returned), photos of the traces of using or disposing of the goods (when the merchant alleges malicious gain), and proof of the goods' value (order price, market price). The merchant should also retain warehouse sorting records or shipping monitoring to prove that the wrong shipment was due to operational errors. The evidence should be organized around the "fact of wrong shipment—the buyer obtaining the goods—refusing to return them—the amount of losses," and only when the chain of evidence is complete can it gain support.

Q3: What is the approximate cost of suing for wrong delivery and unjust enrichment?

The litigation fees are calculated according to the "Measures for the Payment of Litigation Fees" issued by the State Council (effective April 1, 2007), based on the amount of the litigation request. The losing party shall bear the fees, and if the plaintiff partially wins and partially loses, the fees shall be shared proportionally. The subject matter of such cases is usually the value of the goods, and the small claims standard is often applied. There is no unified standard for attorney's fees. The fees are negotiated based on the amount of the subject matter, on a per-case or hourly basis, and are subject to the terms of the retainer agreement. Practical reminder: The value of the misdelivered goods is often limited. The litigation and attorney's fees may be close to or even exceed the value of the goods, and there may also be disputes over return freight and depreciation. Therefore, it is more economical to prioritize negotiating return shipment and supplementary settlement. If litigation is necessary, the plaintiff may claim reasonable expenses in the request. Whether the claim will be supported will depend on the specific case judgment.

Q4: How long does it usually take to resolve disputes over wrong deliveries?

Negotiating a return shipment is the fastest way to resolve the dispute. Both parties can reach an agreement on the return method and cost sharing to conclude the matter, which usually takes several days to weeks. For cases entering litigation, the first-instance ordinary procedure generally concludes within six months, and the summary procedure within three months. Small-value disputes often apply the summary procedure or even small-claims litigation, with even shorter timeframes. If the defendant's whereabouts are unknown and service by public notice is required, the process will be extended. Appeal cases typically take three months for the second-instance trial. Overall, such disputes are relatively simple in nature, and the duration is mainly affected by service and enforcement. The statute of limitations is three years, but it is recommended to handle the matter as soon as possible—prolonged detention of the goods may lead to depreciation or loss, increasing the amount of the dispute, and buyers should also guard against the risk of being deemed to have obtained unjust enrichment.

Q5: If the buyer receives the wrong goods, how should the buyer and the seller handle it respectively?

For buyers: 1. First step: Inspect the goods upon receipt and immediately take photos and videos if there are any wrong deliveries, then contact the seller. 2. Second step: Confirm in writing that "the goods received are not those purchased by me", and agree with the seller on the return method, address, and timeframe. 3. Third step: Return the goods according to the guidelines, retain the logistics tracking number and receipt records, and keep the invoices for expenses. 4. Fourth step: If it is necessary to keep the goods, negotiate with the seller in writing for a refund or exchange. For sellers: 1. First step: Contact the buyer immediately after discovering a wrong delivery, explain the situation, and bear the return shipping costs. 2. Second step: Provide a clear return address and timeframe, and keep a record of the notification. 3. Third step: If the buyer refuses to return the goods, first send a letter requiring them to handle the matter within a specified timeframe. If they still refuse to return the goods, sue them for unjust enrichment to recover the goods or seek compensation for the reduced value. Both parties should keep all communication records in writing and prioritize negotiated settlements.

The above answer is based on the judicial practice in Beijing. The adjudication standards in other provinces and cities may vary. For specific cases, please refer to the local rules and evidence situation.

If you are currently facing similar problems, it is recommended that you consult a professional lawyer as soon as possible with the relevant evidence to avoid missing the statutory time limit. →Business and commercial legal services·Beijing Hengluo Law Firm

Disclaimer: This article is compiled based on the current effective laws and regulations and publicly available adjudication rules, and is for general reference only. It does not constitute a formal legal opinion on specific cases. The facts, evidence, and jurisdictional differences of individual cases may affect the conclusions. In the event of a dispute, please consult a practicing lawyer in a timely manner.