Epcis
EPCIS (Electronic Product Code Information Services) is a GS1 standard for capturing and sharing supply-chain event data, enabling organizations to answer what, when, where, why, and how a product, pallet, asset, or shipment moved through operations. It provides a common machine-readable language for visibility events such as packing, shipping, receiving, transformation, aggregation, and disaggregation across internal systems and trading partners.
On a manufacturing shop floor, EPCIS records each state change as a structured event: raw material receipt, line-side issue, work-in-process movement, transformation into subassemblies, packaging, and finished-goods shipment. In warehousing, the standard captures receiving, put-away, storage moves, picking, packing, pallet aggregation, shipping, and inventory status changes, allowing ERP, MES, WMS, and supplier systems to reconstruct the same physical flow without point-to-point interfaces. For raw material tracking, EPCIS ties lot numbers, serial numbers, expiry dates, and location events to business steps, preserving chain of custody from inbound receipt through consumption and transformation. Because event records carry object identifiers, timestamps, business steps, dispositions, read points, locations, and transaction references, downstream systems can infer current state and genealogy. The practical result is stronger inventory visibility and faster root-cause analysis when scrap, shortages, or quarantine decisions require reconstructing where a lot was, when it moved, and which process consumed it.
- Duplicate stock from identifier drift: When GTINs, lot numbers, and serials are applied inconsistently, EPCIS events cannot be correlated, creating duplicate stock records, lost genealogy, and false traceability gaps.
- Phantom inventory from event lag: Delayed or skipped scanning at receiving, line issue, or shipping lets the digital record diverge from physical reality, producing phantom inventory, misallocated material, and unreliable available-to-promise signals.
- Lost genealogy from weak transformation modeling: Logging manufacturing transformations as generic movements instead of explicit transformation events prevents downstream systems from reconstructing which input lots became which output lots, weakening lot genealogy and recall precision.
How does EPCIS event data differ from product master data?
EPCIS carries event or visibility data, not master data. It describes what happened to identified objects, such as movements, transformations, and status changes, while master data defines the objects themselves. Both work together, but an EPCIS event references master data rather than replacing it.
What key changes does EPCIS 2.0 introduce?
EPCIS 2.0 modernizes the standard by adding JSON and JSON-LD serialization and REST-style APIs, making event exchange more web-native and easier to integrate across heterogeneous systems. It also extends the event model to support richer digital and sensor-related context.
Which EPCIS event types are commonly used to model supply-chain activity?
The core event types are Object, Aggregation, Association, Transformation, and Transaction events. Object and Transaction events track object movement and business documents, Aggregation events handle palletization or unpacking, Association events add or remove attributes, and Transformation events map inputs to outputs, preserving lot genealogy.