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CatalogWash

Fix Shopify duplicate SKU errors before import

Duplicate supplier SKUs can confuse inventory tracking and trigger Shopify import problems. CatalogWash flags repeated Variant SKU values, shows affected rows, and keeps ambiguous conflicts for human review.

What the free report shows

Upload a CSV/XLSX, map supplier SKU columns to Variant SKU, then review duplicate SKU groups alongside product and variant previews.

Browser-first. No Shopify login required.

Upload your CSV for a free import health report

CatalogWash links

Export format tested with Shopify product CSV import. Not affiliated with Shopify. CatalogWash helps reduce import errors, but you should review business-critical product data before importing.