SKU Generator Plus is a Shopify app that builds SKUs from blocks: vendor, product type, tag, collection, variant options, static text and counter. A bulk run fills empty or replaces existing SKUs and can copy SKUs to the barcode field (off by default; replaces barcodes), but assigns no GTIN or EAN numbers. Auto-rules give new products a SKU, and barcode labels print as PDF from a limited SKU list.

• SKU format blocks: vendor, type, title, tag, options, date, static text, counter
• Preview current and new SKUs for a sample of variants before anything is written
• Auto-rules give new products a SKU by vendor, product type or tag
• Print PDF barcode labels from a limited SKU list, Code 128 or QR
• Run history lists old and new SKUs per variant; undo runs