What GS1 is and why join

When a retail chain or marketplace accepts a new product, it often asks: "Did you get your code from GS1?" Many entrepreneurs do not know what that means or whether joining is compulsory. Let us go through it in order.

What GS1 is

GS1 is an international not-for-profit organisation that maintains standards for product identification and supply chains. Its roots lie in the UPC system in the USA and the EAN system in Europe, both of the 1970s; in 2005 they merged under the name GS1. Today the organisation has local member organisations in more than a hundred countries, which issue codes and advise on the ground. Numbers for Uzbekistan begin with the prefix 478.

GS1 does not just issue barcodes; it maintains several standards:

• GTIN, a unique product number (EAN-13 and UPC belong here);
• GLN, a location number for a warehouse, branch or shop;
• SSCC, an 18-digit unique number for a pallet or logistics unit;
• encoding rules: GS1-128, GS1 DataMatrix, QR and others.

In a warehouse these standards show up in three places. On receiving, the supplier's product label carries the GTIN, sometimes with batch and expiry date. The pallet label carries an SSCC: scanning it lets you receive the whole load at once. In documents, the GLN pins down the place of dispatch and receipt.

What membership gives you

First, you receive a company prefix. It guarantees that your codes will never clash with another business's: no two companies get the same prefix. The code reads the same on any scanner and till software in the world.

Second, partners can check who owns the code. Large retail chains and marketplaces sometimes establish the official owner of a number through the GS1 database, so a code in your own name builds trust. Third, the organisation gives guidance on rules, sizes and print quality.

Who needs it and who does not

A GS1 number is necessary when:

1. You make or import goods under your own brand.
2. You sell through retail chains or a marketplace and they demand a GS1 code.
3. You intend to export.

Membership is not required when:

• The code is only for internal records: fixed assets, labels inside the warehouse, racks. Internal numbering is enough here.
• You resell another maker's goods. The product already has a code; do not replace it, because sticking your own code over the old one creates a two-code problem.
• Trade happens only inside your own shop, with no outside partners.

If in doubt, ask the buyer: do they need a GS1-verified number, or is an internal code enough? The answer is usually in their written requirements.

The risk of a "cheap code"

Online there are many sellers of "ready-made barcodes". Usually they sell numbers from their own prefix, so the official owner of the code remains the seller, not you. That is where the trouble begins: when a chain or platform checks, it may turn out that the code is not yours, and the product is rejected. If a dispute with the seller arises, you cannot prove your rights. So if you plan long-term trade, get your number directly from the national GS1 organisation.

Checking is simple: before buying a code, ask for a document confirming that the prefix is registered in your company's name. If the document is in the seller's name, the number is not yours.

Costs and obligations

Membership usually consists of a one-off registration fee and an annual payment, and the amount may depend on the number of codes or on turnover. Ask the national organisation for exact tariffs and the list of documents. The prefix is not sold to you but licensed, and if membership lapses the right to use it may end. You are also responsible for not giving one number to two products and for updating the data when a product changes. Keep a separate table of which number was given to which product: years later that list will save you from confusion.

Conclusion

GS1 is a kind of registry for barcodes: it guarantees that a code is unique and who officially owns it. For internal records membership is unnecessary, but for retail chains and export it is almost essential. During a count the Shtrix team checks product codes against your database, and for goods without a code it creates an internal one and prints labels.