Recommended safest route
Use AUS as the main store, then stage UK and US into Markets
The AUS store is the recommended survivor store. Shopify Markets and multicurrency support should be prepared
first, then UK data should be migrated while the UK store remains live. UK launches only after QA, and US follows
after UK has stabilized.
1
Prepare AUS
Configure Shopify Markets, currency, domains, tax, shipping, locations, and fulfillment routing.
2
Migrate UK
Move UK data into AUS while the current UK store stays live for orders, references, and fallback.
3
Launch UK
Switch UK only after QA confirms checkout, redirects, tax, shipping, payments, and fulfillment.
4
Repeat for US
Use the same proven process for US after UK launch monitoring is complete.