Packing-Slip Integration with Product Thumbnails and Code 128 Barcodes

Summary

A WooCommerce packing-slip integration that generates warehouse-ready slips with product thumbnails and scannable Code 128 barcodes.

Challenge

Warehouse staff packing orders from plain text slips had to match products by name alone — slow and error-prone when products look alike. The slips needed to show what each item looks like and carry a barcode that scanners could read reliably.

Solution

I designed and built the integration around a clean API flow:

• Structured the data passed to the packing-slip output: order, items and product imagery
• Rendered product thumbnails next to each line item for instant visual checking
• Generated Code 128 barcodes for reliable scanning at the packing bench
• Kept the integration modular, so the slip layout can change without touching order logic

Result

Packing slips that warehouse staff can verify visually and scan mechanically — fewer wrong-item checks, and a document that matches how the packing process actually works.

Stack

WordPress, WooCommerce, PHP, API integration, Code 128 barcode generation