Temu & Shein Seller Packaging & Barcode Specifications: SKU Barcodes & Consolidation Hub Guide

1. The Cross-Border Consignment Model: How Temu & Shein Operate

The explosive rise of Chinese cross-border marketplaces like Temu (PDD Holdings) and Shein is built on an aggressive manufacturing-to-consumer (M2C) consignment pipeline. Under the primary Fully Managed Model, manufacturers act solely as inventory suppliers:

• The merchant lists goods on the seller portal, agreeing to fixed wholesale supply pricing.
• Temu or Shein generates purchase orders (POs) for bulk batches (e.g., 200 units of a dress or kitchen gadget).
• The supplier packages each item in individual clear plastic sleeves, applies standardized barcode stickers, and ships master cartons to domestic consolidation hubs (located in Guangdong, Zhaoqing, Yiwu, or Foshan).
• The marketplace inspects the goods, consolidates thousands of orders into air freight containers, clears international customs, and oversees final delivery in North America and Europe.

2. Individual Unit Packaging: Polybag SKU Labels & Code 128 Specs

Every single item shipped to a Temu or Shein consolidation warehouse must be packaged in a transparent, dust-proof plastic sleeve (polybag or zipper bag). The external SKU label must adhere to rigorous dimensional and typography rules:

Crucial Placement Rule: The adhesive barcode label must be placed completely flat on the smooth front panel of the bag. Labels must never wrap around edges, cover zipper sliders, or span across air vent perforations.

3. Mandatory Multi-Language Suffocation Warnings

Both the United States Consumer Product Safety Commission (CPSC) and the European Union General Product Safety Directive (GPSD) require that any thin-film plastic bag with an opening diameter exceeding 5 inches carry a multi-lingual Child Suffocation Warning. For Shein and Temu suppliers, compliance requires printing warning text in at least four primary languages directly on the polybag film or via an approved secondary label:

• English: "WARNING: To avoid danger of suffocation, keep this plastic bag away from babies and children. Do not use in cribs, beds, carriages or playpens."
• Spanish: "AVISO: Para evitar peligro de asfixia, mantenga esta bolsa fuera del alcance de bebes y ninos."
• French: "ATTENTION: Pour eviter tout risque d'etouffement, garder ce sac hors de portee des bebes et des enfants."
• German: "ACHTUNG: Um Erstickungsgefahr zu vermeiden, diesen Beutel von Babys und Kindern fernhalten."

4. Consolidation Hub Quality Control (QC) & Optical Ingestion

Consolidation warehouses operate on razor-thin processing margins. Items are placed onto automated tilt-tray or cross-belt sorters traveling at speeds up to 2.5 meters per second. Overhead 5-sided omnidirectional camera tunnels read the SKU barcode.

If the barcode fails to read due to poor thermal contrast, thermal ribbon smudging, or shiny polybag wrinkles, the item is automatically diverted to the manual exception reject lane. Here, an associate performs a secondary check. If the barcode is deemed unreadable or the SKU does not match the advance packing list, the shipment is logged as a Vendor Packaging Defect.

5. Master Carton Labeling & Structural Packaging Mandates

Suppliers must ship goods to consolidation facilities in heavy-duty 5-ply corrugated cardboard boxes (Double-Wall Kraft Cartons). Structural rules include:

• H-Taping Standard: All top and bottom seams must be sealed in an "H" pattern using 2-inch or 3-inch pressure-sensitive adhesive tape. Taping along only the center seam is prohibited as box flaps cave in during transit.
• Single SKU Packaging: Unless explicitly designated as a mixed-SKU PO, master cartons must contain only one identical SKU variation. Stacking black and white hoodies in the same box causes automatic intake refusal.
• Master Shipping Label: A 100 mm x 100 mm thermal label containing the PO Box-ID, warehouse address, piece count, and gross weight must be affixed to the outer side panel of the carton.

6. QC Failure Penalties, Re-labeling Deductions & Account Health

Consolidation hubs track supplier packaging defect rates in real time. Penalties are enforced via automated settlement deductions:

• Manual Barcode Correction Fee: If Temu or Shein associates have to re-print and apply barcode stickers, a fee of ¥2.00 to ¥5.00 (\$0.30 to \$0.75) per unit is charged against merchant balances.
• Return to Vendor (RTV): Shipments with defect rates exceeding 10% are rejected in their entirety and returned to the seller via domestic courier (SF Express or ZTO) on a Cash-on-Delivery (COD) freight basis.
• Store Health & Quota Reductions: Repeat packaging offenders suffer listing rank demotions, order allocation quotas, or termination of supplier agreements.