The cocNumber is the primary reference used when communicating with the laboratory about a sample shipment. It appears on the physical CoC form tucked into the cooler, on the lab's receiving documentation, and in Piper's audit trail. When a lab contacts you about a specific shipment, you look it up by cocNumber. Record it exactly as it appears on the paper form to ensure the digital and physical records stay in sync.
Technical section
Data model, API, and internals — visible to developers.