Multi-region — US vs EU vs APAC branded merch — how does Magento handle it?

Yes, via Magento Multi-Source Inventory (MSI), native since 2.3.0, plus regional supplier feeds.

Architecture: define sources (regional supplier warehouses) per region (e.g. sanmar_us, sanmar_canada, fare_eu, pcna_australia) and stocks (shopping experiences) per region. Customer geo-routes to a stock; stock aggregates inventory from its regional sources.

Region-specific considerations for promo:

• US — SanMar, Alphabroder, S&S Activewear, Vantage, PCNA, Hit Promotional, Edwards. Pricing in USD. Prop 65 warnings on California ship-to.
• EU — Fare (UK), Falk & Ross (DE), Hidaka (UK), Stretto (NL). Pricing in EUR / GBP. VAT-included PDP pricing. CE marking for electronics, RoHS compliance, REACH chemical disclosures.
• APAC — AAA Promo (AU), House of Uniforms (AU), Promotional Products Association International members. Pricing in AUD / NZD. Australian Consumer Law disclosures.

Multi-region pricing + currency: separate store views per region. EU store view in EUR with VAT-included prices; US in USD with tax-excluded; AU in AUD. Same SKU pool from regional sources, different price visibility, different decoration partners (US decorators ship US orders, EU decorators ship EU orders — cuts cross-border decoration freight cost).

Multi-region brand-portal: a Fortune 500 with offices in US + UK + AU gets a single corporate-account login but routes to the regional supplier feed + regional decorator. Cuts lead-time by ~5-7 days vs shipping decorated merch internationally.