Product traceability
Product traceability is the ability and supporting system to follow a product, batch, component, or material through its history, origin, location, transformations, and movements using linked records and identifiers. Its scope, granularity, data quality, interoperability, verification, and custody controls determine which provenance or sustainability questions it can reliably answer.
In simple terms
Product traceability links events and data as materials are produced, transformed, combined, split, transported, and sold. A useful system defines the traceable unit, actors, identifiers, events, data fields, verification rules, and access controls. Chain of custody is closely related but focuses specifically on documented handling and control of a claim-bearing material or product. Traceability can support risk assessment, recalls, origin claims, circularity, and compliance, but it is not the same as due diligence: knowing where something came from does not establish whether impacts were identified and addressed.
Why it matters
Complex value chains make it difficult to connect a finished item with upstream places, processes, and evidence. Reliable records can support fair trade assurance, an environmental product declaration, or an ecolabel by connecting claims to the correct product and scope. Traceability can also support a just transition when new value chains need credible origin and benefit-sharing information, but data collection should not impose disproportionate costs or expose vulnerable actors.
Example
A textile system assigns identifiers to cotton lots and records farm, gin, spinner, mill, dyeing, assembly, and shipment events. When lots are mixed, the applicable accounting rule is recorded instead of implying physical segregation. Auditors test selected evidence, and authorized users can trace a finished batch backward without viewing confidential fields unrelated to the claim.
How it differs
Chain of custody
Product traceability is the broader capability to follow origin, history, location, and transformation; chain of custody documents who handled or controlled a product and how a specified claim was preserved.