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Customer Address APIs now support countryCode

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Shopify·Sep 8, 2026, 04:00 PMDeprecationMay break your integrationAI-assisted summary

Summary

Added a new countryCode field (ISO 3166-1 alpha-2) to CustomerAddressInput and CustomerAddress objects.
Deprecated the existing territoryCode field; it remains functional but countryCode takes precedence if both are provided.
Developers should migrate to countryCode when adopting API version 2026-10; no immediate breaking impact for earlier versions.

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Official source Last checked Sep 21, 2026, 5:05 AM

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