Being blocked on listing is mostly not a product issue but a coding issue: wrong number range, multiple specifications sharing one code, missing proof of ownership. This solution handles in advance every item that platform review cares about.
The example is a domestic-sale 69-prefix GTIN-13 (including the mod10 check digit). For the UPC/EAN required by cross-border platforms, see the comparison below.
Tmall / JD.com / Amazon / Douyin — first identify which applies to you, then look at the solution.
Domestic sale, cross-border, or dual-track parallel operation correspond to different number prefixes — choose the wrong prefix and platform listing will be rejected outright.
Different colors / sizes / capacities must be coded independently; sharing a code will cause inventory, orders, and reviews to all get mixed up.
Some platform categories require proof of code ownership; the criteria for self-owned codes versus authorized codes must be clarified in advance.
In e-commerce scenarios, a barcode is a "product ID card + platform data index": platform listing, price comparison, logistics, and review systems are all tied to the GTIN.
Platforms create product records based on GTIN, one number per item, with no duplication or confusion.
The same GTIN can be recognized as the same product across channels, facilitating price and supply-source governance.
Warehouse scan-to-inbound and pick-to-outbound both use the product barcode as the index.
Choose barcode types by scenario, and don't pay for capabilities you won't use.
| Barcode symbology | Form | Purpose in this scenario |
|---|---|---|
| GTIN-13 | EAN-13 · 13 digits | Common in domestic e-commerce and most markets; domestic sale corresponds to the 69 prefix. |
| GTIN-12 | UPC-A · 12 digits | Common on cross-border platforms such as Amazon; the traditional form for North American channels. |
| ITF-14 | Outer carton · 14 digits | Outer carton labeling for full-carton inbound warehousing, corresponding to the individual item GTIN. |
All barcode types can be found inBarcode Tool CenterTruly generated and verified before printing.
Directional comparison; specific current rules shall prevail.
| Platform type | Common coding requirements | Common supplementary requirements |
|---|---|---|
| Domestic comprehensive e-commerce (Tmall / JD) | Product barcode starting with 69 (GTIN-13) | Some categories require proof of code ownership |
| Domestic content e-commerce (Douyin / Kuaishou Shop) | GTIN codes; some categories may apply for exemption | Category qualifications and quality inspection reports |
| Cross-border platforms such as Amazon | UPC / EAN（GTIN-12 / 13） | Some brands may apply for GTIN exemption; most categories still require formal codes |
| Independent sites and self-built stores | No mandatory requirement; GTIN is recommended for price comparison and logistics integration | Warehousing and logistics integration specifications |
Platform rules may change; before listing, refer to the platform's official documentation; we can assist in verifying whether products match platform requirements.
Domestic, cross-border, or both — this determines which number segment is needed.
List the SKU inventory and specification differences; colors, sizes, and capacities should each be coded independently.
Apply for the corresponding number segment for the market and obtain the manufacturer identification code.
Assign a number to each SKU, validate it with the barcode tool first, then deliver the packaging design.
Verification of code ownership proof and category requirements: when the review is stuck, first verify the number range and ownership, then fill in the missing materials according to the category requirements.
Retail and hardware companies such as MINISO and Insta360.
If the platform requires proof of code ownership, authorization documents or member organization membership credentials must also be prepared (subject to the platform's current requirements).
The total fee usually includes: the coding service fee charged by the member organization (based on tier and number of years) + agency service fee. Factors affecting the fee: SKU scale, number of number segments required, and whether additional matters such as changes / transfers are included.
Once the materials are complete, the review and allocation process begins. Timelines vary by member organization.
No new code allocation is involved, so the process is relatively simple
Unified ledger management, with each milestone synchronized item by item
The above is a description of the process sequence and does not fabricate specific numbers of days; the actual timeline is subject to the current public notices of the accepting institution, and each milestone will be synchronized during processing.
Describe the product category and sales channel, and the coding consultant will provide the corresponding solution for this scenario.
