September 08, 2026 Action / breaking change

Customer Address APIs now support countryCode

APIDeprecation announcementCheckout UICustomer Account APICustomer Accounts2026-10

Shopify developer change

MerchantDiff detected this entry in Shopify's official developer changelog on September 08, 2026.

This Shopify update is categorized as API, Deprecation announcement, Checkout UI, Customer Account API, Customer Accounts, 2026-10.

Use the official Shopify entry below as the source of truth for technical implementation details, affected APIs, migration instructions and deadlines.

Official source

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