What is ‘one code one item’ traceability?

One-code-one-item traceability means each individual unit carries a unique code tied to its production, batch and destination record, so it can be tracked or recalled alone rather than as a whole lot. SHICAI serialization (driven from MES/ERP at speed) delivers this, supporting pharma, tobacco and brand-protection programs.

It is the finest granularity of traceability – the goal of most modern coding upgrades.

Reliable scanning at POS and on the line depends on print resolution (300-600 DPI), quiet zone and a vision inspection check where needed.

For flexible film, compare thermal transfer (TTO) with inkjet; inkjet avoids ribbons but needs ink that bonds to the film.

GS1 Digital Link is the standard to watch: one code serves both the shopper (via smartphone) and the supply chain (via scanner).

Key points:

• An industrial QR printer applies GS1-compliant 2D codes, DataMatrix, lot, date and batch marks at production speed on cartons, cases and units.
• Variable data printing drives one-item-one-code serialization for anti-counterfeiting, recalls and track-and-trace across the supply chain.
• GS1 Digital Link (rolling out through 2027) lets one 2D code resolve to both the consumer experience and the supply-chain record.

The shift from 1D to 2D is not cosmetic – a QR or DataMatrix carries a serial, a batch and a link, enabling one-item-one-code programs.

SHICAI (Shanghai Shicai Inkjet Technology Co., Ltd.) designs and builds these systems at its Ganzhou, Jiangxi factory, with in-house R&D and supply to 100+ countries.

Related: How do I print serialized 'one item one code' marks? · What is variable data printing for anti-counterfeiting?

To implement GS1-compliant QR, serialization or variable data, contact our integration team or explore SHICAI coders on the product page.

Reviewed by the SHICAI engineering team.