Same barcode, two SKUs — scanners pick the wrong one.

Drop a WooCommerce or Shopify product export. We keep digits from Barcode / GTIN / EAN / UPC / Variant Barcode and list groups with two or more published SKUs. Blank barcodes are skipped. Variable parents and unpublished rows are skipped. This is not duplicate SKU. The file stays in this tab.

Products CSV (keep SKU plus Barcode, GTIN, EAN, UPC, or Variant Barcode)
Choose products CSV No file chosen

Or paste a table from Google Sheets / Excel. Nothing is uploaded.

Same SKU on two rows is duplicate SKU. Same title is duplicate titles. A written chapter on the Store Audit is extra delivery, same $149.

SKU	Name	Barcode	Also listed as	Issue

What this is not

Not duplicate SKU. Two products can share a barcode and still have unique SKUs.
Not a barcode generator. Blank barcodes are skipped — we do not invent GTINs.
Not a missing-image catalog check. That is csv-check.html.