How to Assign Unique Barcode Numbers to Every New Product Variation

Author : quick barcode | Published On : 29 Aug 2026

Why Getting This Right Matters From the Start

A new barcode is required each time a firm offers a new product, or even a slight alteration of an already-existing one. Indian organizations commonly undervalue this step since they assume that slight alterations, such a changing flavor or pack size, don't require for a different code. In practice, each individual trade item needs a unique identity; missing this step leads to inventory confusion and ultimately retail rejection.

Start With a GS1 Company Prefix

Before any Barcode Number can be generated, a business first needs to obtain a GS1 Company Prefix through a GS1 Member Organisation. This prefix forms the foundation for every identification key the company will ever create, whether for products, logistics units, locations, or company assets. It is what allows a business to generate numbers that remain unique not just within India, but across global supply chains, since GS1 prefixes are used by well over a million companies worldwide for exactly this purpose.

Assigning Numbers to Each Product Variation

Once the company prefix is secured, the actual process of assigning numbers to individual products becomes fairly straightforward. Each trade item, meaning each distinct product, pack size, flavor, or packaging format, receives its own identification number. The GS1 Member Organisation can advise on exactly how many numbers a business is entitled to assign, since this depends directly on the length of the company prefix issued. Businesses expanding their product range regularly should plan for this in advance, since running out of available numbers mid launch can delay packaging and distribution.

Choosing the Right Barcode Printing Process

Before finalizing a Barcode for New Product launches, a business needs to decide how the barcode will actually be printed onto packaging. If the information encoded is static, meaning it never changes across units, traditional printing presses can apply it directly onto the package or onto a label. If the information is dynamic, such as batch numbers, expiry dates, or serial numbers, digital printing becomes necessary, sometimes in combination with traditional printing for products that also require detailed graphics.

Understanding Where the Barcode Will Be Scanned

There are huge distinctions between barcodes that operate well in specific regions and others that don't. Omnidirectional scanners function with barcodes that are looking in any direction, not just one. This is why a product must be omnidirectional to be scanned at retail checkout counters. Warehouse scanning is normally done from a farther distance than checkout scanning, therefore products scanned in both retail and warehouse environments require barcodes of suitable size for both.

Selecting the Correct Barcode Symbol

The EAN or UPC symbol is still the recommended choice for items designated for retail point of sale since point of sale systems globally accept it. For objects containing data that might vary, like serial numbers or expiry dates, formats like GS1-128 or GS1 DataBar are frequently preferable. GS1-128 or ITF-14 are typically utilized on outer cases that move via distribution and transportation systems. This is because these forms are meant to print right on cardboard boxes.

Getting the Size and Placement Right

Barcode size depends heavily on both the chosen symbol and the printing method being used. Truncation, the method of decreasing barcode height to reduce space, is forbidden by GS1 requirements and has a deleterious influence on scan rates at retail checkout counters. Size is crucial, but so is positioning. packaging engineers should be contacted before completing the design as a barcode that is positioned across a carton fold, buried behind packing flaps, or put too near to an edge runs the chance of being damaged or entirely camouflaged.

Formatting the Human Readable Text Correctly

Behind every barcode there is a set of human readable numbers. In case the barcode itself is damaged or hard to scan these numbers are a backup. This text should be placed underneath the symbol wherever physically practical and must be legible and proportional to the size of the barcode. What number of digits are utilized depends on the format. An EAN-13 symbol contains thirteen digits, but a UPC-A symbol only has twelve.

Building Quality Checks Into the Process

Once printing begins, quality verification becomes essential. International standards exist specifically for testing barcode print quality, and GS1 sets minimum quality grades depending on which symbol is used and where it will be scanned. Running these checks before large scale printing begins helps Indian manufacturers avoid the costly discovery of scanning failures only after products have already reached distribution centers or retail shelves.