Online retailers, e-commerce platforms and importers selling goods to European consumers face new customs data obligations following the introduction of mandatory product identifiers for distance-sale imports.
The rules, which entered into force on 1 November 2026, require more detailed product identification information to accompany customs declarations for relevant goods entering the European Union.
For businesses engaged in cross-border e-commerce, the change creates additional responsibilities for product data management, customs compliance and coordination with suppliers.
According to the European Commission’s Directorate-General for Taxation and Customs Union, the objective is to improve identification of imported products and strengthen the ability of customs authorities to detect goods that fail to comply with European requirements.
The measure forms part of a wider effort to modernise customs supervision as the volume of international e-commerce continues to place pressure on existing systems.
Why Brussels Is Changing the Rules
European customs authorities handle large numbers of parcels ordered through international online platforms.
Traditional customs declarations identify goods through product descriptions and commodity classifications, but these details may not be sufficient to distinguish between individual models or products.
That limitation creates difficulties when authorities identify goods that may pose safety risks or fail to satisfy EU regulatory standards.
The Commission says joint enforcement operations involving customs and market-surveillance authorities have identified substantial compliance problems among low-value products purchased online from outside the Union.
The new product identifier requirements are intended to make customs controls more precise.
Rather than relying exclusively on general product descriptions, authorities will be able to connect declarations to specific product references, manufacturers and internationally recognised identifiers.
This should make it easier to identify products already associated with compliance concerns and investigate similar goods offered through other sales channels.
Three Types of Product Identifier
The new rules require three categories of information in the relevant customs declarations.
The first is the merchant product identifier, or M-PID.
This is the reference assigned to a product by the seller, website or marketplace where it is offered for sale.
It enables customs authorities to connect an imported product to the specific online listing associated with the transaction.
The second is the non-standardised manufacturer product identifier, or NS-PID.
This typically refers to the manufacturer’s own product or model reference, such as a part number or style code.
It provides a means of identifying the same product even when it is sold through different retailers or online platforms.
The third is the standardised manufacturer product identifier, or S-PID.
This can include internationally recognised codes such as EAN, UPC or ISBN identifiers.
Where a product does not have an applicable standardised identifier, the declaration must use the relevant exemption code rather than inventing one.
Together, these identifiers provide a more detailed connection between online listings, physical products and the companies responsible for their manufacture.
Who Is Responsible for Providing the Data?
The obligations involve several participants in the e-commerce supply chain.
Manufacturers, merchants and online marketplaces may hold different elements of the information required for a customs declaration.
The actual declaration is submitted by the responsible declarant, which may be an Import One Stop Shop operator or a customs representative, depending on the transaction.
The Commission notes that much of the required information already exists in product listings, invoices or packaging.
Consequently, businesses do not necessarily need to create entirely new identification systems.
The immediate task is ensuring that existing product information can be transferred accurately between suppliers, sellers, logistics providers and customs representatives.
For smaller businesses, this could require reviewing how products are entered into e-commerce systems and how identifiers are maintained when catalogues change.
Product Data Becomes a Compliance Issue
The new requirements increase the importance of consistent product information.
An online retailer might use its own stock-keeping reference, while a manufacturer identifies the same product through a different code.
A marketplace may then assign an additional listing number.
Unless these references are linked correctly, the business could encounter discrepancies when preparing the information required for import declarations.
Companies selling products through multiple marketplaces may face particular challenges because merchant identifiers can differ between platforms.
Businesses will therefore need reliable processes for maintaining product data and communicating changes to their customs intermediaries.
These are operational requirements, but they also have commercial implications.
Inaccurate or incomplete information can complicate the customs process, potentially creating delays and additional administrative work.
The Implementation Timetable
The requirement was introduced in stages.
Businesses were permitted to begin providing product identifiers voluntarily from 1 July 2026.
Mandatory enforcement began on 1 November.
The Commission has also identified July 2028 as the next important stage, when more comprehensive product data requirements are expected to accompany deployment of the EU Customs Data Hub for e-commerce.
The development forms part of a wider programme intended to improve the availability and analysis of customs information.
Companies that invest in consistent product-data management now may be better prepared for future requirements.
However, the new identifier rules should not be confused with separate customs duties, VAT obligations or product safety requirements, which continue to apply according to their own legal frameworks.
What Businesses Should Review
For retailers and marketplaces, the practical priorities are relatively clear.
Businesses should establish whether their imported goods fall within the relevant distance-sales procedures, verify that the required product identifiers are available and ensure their customs representatives receive accurate information.
They should also examine whether internal systems can consistently connect marketplace listings with manufacturers’ product references.
The rules may require additional coordination between procurement, logistics, IT and compliance teams.
The greatest difficulties are likely to arise where product data is incomplete, suppliers use inconsistent identifiers or goods are sold simultaneously through several platforms.
A More Data-Driven Customs System
The introduction of mandatory product identifiers marks a gradual shift in EU customs supervision.
Authorities are moving towards a system in which information about individual products plays a larger role in identifying risks and enforcing market requirements.
For businesses, customs compliance is therefore becoming more closely connected to the quality of digital product information.
The change may appear technical, but its operational implications are considerable.
Retailers and marketplaces that depend on cross-border imports will increasingly need to treat product identification as an essential component of supply-chain management rather than a minor administrative detail.
