Shopify rates shipping by product weight — but it never tells you which products have blank or wrong weights. Those quietly inflate the rates buyers see at checkout, costing you sales and margin on every order. Reweigh scans your whole catalog in one click, flags every missing, implausible, or duplicated weight, and shows the revenue at risk. Review the suggested fixes, apply them in bulk with one-click undo, and keep a full change history. Allows automatic scans so it never happens again.

• One scan: shipping health score, every flagged product, and revenue at risk
• Weight suggestions from category data, keywords, and AI, with reasoning shown
• Bulk-apply fixes with a confirmation step and instant one-click undo
• Full change history: who changed which weight, and when
• Guardian auto-scan keeps new and edited products clean