Unit-level warranty activation records created by QR scanning

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Unit-level warranty activation records created by QR scanning: each physical unit carries a unique printed QR encoding its SKU and serial number, and the end-customer scan submits a record pairing serial↔SKU↔purchase date↔timestamp with contact detail and an invoice photo. The byproduct asset is therefore a serial-to-purchase-date ledger by product category (construction and industrial supplies, consumer tech and smart home, kitchen appliances and HVAC, power tools and turf equipment, aftermarket auto and marine parts), plus warranty-claim and support-touch events and CRM-synchronised downstream outcomes