SKUWorks Guides
Practical guides and best practices for product ops: barcodes, labels, design files, and purchase orders.
Featured guides
Which Barcode Should I Use?
EAN-13 vs UPC-A vs ITF-14 vs GS1-128: choose the right barcode for retail units, cartons, or logistics.
Read guideCarton Barcodes: ITF-14 vs GS1-128 (and When SSCC Matters)
ITF-14 vs GS1-128 for cartons: when to use each, what SSCC is, and common mistakes that cause rejected deliveries.
Read guideBarcode Size Guide
Safe print sizes for EAN-13, UPC-A, Code 128, ITF-14, GS1-128, and QR codes. Quiet zones and troubleshooting.
Read guidePurchase Order Basics
What should be on every PO, common mistakes to avoid, and how to treat POs as structured data for smoother production and fewer disputes.
Read guideGTINs Explained
GTIN-12, GTIN-13, GTIN-14: when each is used. GS1 standards, official barcodes, and global best practice.
Read guideGS1-128 vs Code 128: What's the Difference?
Code 128 vs GS1-128: when to use each, key differences, Application Identifiers, and practical examples for cartons, pallets, and internal workflows.
Read guideLatest posts
Artwork File Naming Convention for Packaging and Print Workflows
A practical artwork file naming convention for packaging teams, with examples for labels, cartons, dielines, proofs, and supplier-ready files.
Read moreProduct Master Data Sheet: Fields Every Brand Should Include
A practical guide to the product master data sheet fields brands need for SKU setup, supplier ordering, packaging handoff, barcode control, carton hierarchy, wholesale setup, and 3PL onboarding.
Read moreHow to Avoid Sending the Wrong Artwork Version to a Supplier
Artwork version mistakes usually come from weak file control, not bad design. Here’s a practical process to separate drafts from released files, standardise naming, log revisions, and send supplier-ready artwork without costly reprints.
Read moreSupplier Production Approval Checklist
Use this practical supplier production approval checklist to confirm specs, packaging, labels, quantities, timelines, and sign-off before a factory starts manufacturing.
Read moreHow to Hand Off Packaging Files to Suppliers Without Version Chaos
A practical workflow for handing off packaging files to suppliers without version confusion, outdated artwork, or expensive print mistakes.
Read moreProduct Data Fields Wholesale Brands Should Have Ready Before Buyers Ask
A practical guide to the minimum product data fields wholesale brands should have ready for buyer setup, distributor onboarding, and 3PL operations.
Read moreHow to Prepare Product Data for 3PL Onboarding
A practical guide to preparing clean, warehouse-ready product data before inventory reaches your 3PL, including SKU fields, pack configuration, barcode requirements, dimensions, hierarchy, file control, and a pre-onboarding checklist.
Read moreHow to Write a Supplier-Ready Purchase Order
A supplier-ready purchase order gives vendors enough detail to produce, pack, label, ship, and invoice without basic clarification. Here’s what to include and how to structure it.
Read moreMaster Carton Labelling Guide (Retail + 3PL + Warehouse)
Outer vs inner carton labels, ITF-14 placement, SSCC pallet labels, retailer requirements, and common rejection reasons — so your goods move smoothly from factory to retail.
Read moreHow to Structure SKUs Properly (Before You Print Anything)
Internal SKU logic, variants, carton multiples, GTIN hierarchy — structure your SKUs strategically before printing packaging, labels or barcodes, or pay for reprints later.
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