Blog
September 26, 2026
How to Find and Fix Missing or Duplicate Barcodes in Your Shopify Catalog
Missing and duplicate barcodes cause fulfillment errors and marketplace rejections long before you notice them in Shopify admin. Here's how to find them and fix them.
September 24, 2026
UPC vs EAN vs GTIN: What Shopify Merchants Actually Need to Know
UPC, EAN, and GTIN aren't interchangeable. Here's the difference, which one Shopify's barcode field expects, and how to avoid marketplace rejections over a format mismatch.
September 22, 2026
How to Bulk Import UPC Barcodes Into Shopify (No Developer Needed)
A step-by-step guide to bulk importing UPC, EAN, or GTIN barcodes across your Shopify catalog, plus what to check before and after the import.
September 20, 2026
Why Clean Barcode Data Is the Foundation of Reliable Fulfillment
Missing or mismatched product barcodes quietly cause fulfillment errors, failed marketplace listings, and inventory drift. Here's how to audit and fix your Shopify catalog's barcode data.