Multi-region, US UL vs EU CE-mark vs UK CA tool standards. How does Magento handle it?

Magento Multi-Source Inventory (MSI) + multiple store views per region, with region-specific product attributes for certification.

• US store view, surfaces ul_listing, ansi_asme_spec, prop65_required. Currency USD, tax-excluded prices, US-spec voltage (120V).
• EU store view, surfaces ce_marking, rohs_compliant, reach_svhc. Currency EUR, VAT-included prices, EU-spec voltage (230V). CE marking is mandatory for any power tool sold in EU; non-CE tools must be hidden at the source/stock level.
• UK store view, surfaces uk_ca_marking (the post-Brexit replacement for CE on UK-sold tools, accepted alongside CE during the transition). Currency GBP, VAT-included.
• Source-stock model, US warehouse sources US-spec tools; EU warehouse sources CE-marked stock; UK can pull from either during transition. MSI’s source-selection algorithm routes orders correctly.

SKU strategy: most major brands (DeWalt, Milwaukee, Makita) sell separate SKUs per region (e.g. DCD771C2 US vs DCD771C2-GB UK vs DCD771C2-XJ EU) because of voltage + plug differences. Magento configurable product handles the “same model, different region” case cleanly, one parent product, simple-product children per region, geo-routing picks the right child.

The 230V/120V mismatch is the biggest customer-service gotcha, a US homeowner ordering from your EU store view will get a 230V tool that won’t work in their wall socket. Geo-fence aggressively or display a giant warning above add-to-cart when shipping address mismatches store-view region.