---
title: "BigCommerce Japanese prefecture names now use English spelling: 2026-10-07 | Harbyn"
description: "BigCommerce Japanese prefecture names now use English spelling, announced Oct 7, 2026; replacement: Tokyo, Kyoto, Osaka."
canonical: "https://harbyn.com/changes/bigcommerce/2026-10-07-japanese-prefecture-names-now-use-english-spelling"
last-updated: 2026-10-08
---

# BigCommerce Japanese prefecture names now use English spelling

Markdown version of <https://harbyn.com/changes/bigcommerce/2026-10-07-japanese-prefecture-names-now-use-english-spelling>.

Breaking change - BigCommerce. high severity. In effect.

Six prefecture names now use plain English spelling without macrons. Integrations that match states by name should use the new spellings; state IDs and abbreviations are unchanged.

## Facts

| Fact | Value |
| --- | --- |
| Vendor | [BigCommerce](https://harbyn.com/vendors/bigcommerce.md) |
| Kind | Breaking change |
| Severity | high |
| Status | In effect |
| Announced | Oct 7, 2026 |
| Added to Harbyn | Oct 8, 2026 |
| Lead time | No dated deadline |
| Replacement | `Tokyo`, `Kyoto`, `Osaka`, `Hyogo`, `Kochi`, `Oita` |
| Review | Reviewed by a person, extracted by a model |

## Find it in your code

```sh
npx harbyn scan
```

This change names no identifier the scanner can match line by line, so the scan tells you whether your repository uses BigCommerce, from its packages and API hosts. Nothing leaves your machine.

## Sources

Where this event comes from: the page we read, when we read it, and the hash of that snapshot.

- <https://docs.bigcommerce.com/developer/changelog.md> (changelog, fetched 2026-10-08 17:16 UTC, sha256 `ae3b40fa107f36384eb280a930b724f422b40bbe01df2857699de46f7d5e330e`)

## Related changes

### More from BigCommerce

- [301 redirects will apply only to storefront channels](https://harbyn.com/changes/bigcommerce/2026-10-07-301-redirects-now-apply-to-storefront-channels-only.md) (Behavior change, effective Nov 10, 2026)
- [Duplicate Worldpay Access checkout payments now return duplicate\_transaction with HTTP 400](https://harbyn.com/changes/bigcommerce/2026-10-07-clearer-error-for-duplicate-worldpay-access-payments-at-checkout.md) (Behavior change, announced Oct 7, 2026)
- [Storefront GraphQL returns zero, not null, for price list sale and retail prices of 0](https://harbyn.com/changes/bigcommerce/2026-10-06-price-list-sale-and-retail-prices-of-zero-now-return-zero.md) (Behavior change, announced Oct 6, 2026)
- [Authorize.net order description format change](https://harbyn.com/changes/bigcommerce/2026-10-05-authorize-net-order-description-fix.md) (Behavior change, announced Oct 5, 2026)

### Changes at other vendors

- [Amazon Selling Partner API: October listing attribute usage and enumeration value updates](https://harbyn.com/changes/amazon-sp-api/2026-10-14-sp-api-updates-new-listings-items-api-ivp-values-in-eu5-jp-and-ca-stores-oct-2.md) (effective Oct 26, 2026)
- [Supabase: four CBC-mode TLS 1.2 cipher suites will be removed from project HTTP APIs](https://harbyn.com/changes/supabase/2026-10-12-an-outdated-subset-of-tls-1-2-ciphers-will-be-disabled-on-project-http-apis.md) (effective Nov 10, 2026)
- [Google Workspace APIs: OAuth clients must be marked as agentic to call Google Workspace MCP servers](https://harbyn.com/changes/google-workspace/2026-10-12-oauth-clients-must-be-marked-as-agentic-to-call-google-workspace-mcp-servers.md) (effective Nov 11, 2026)
- [Bitbucket Cloud API: Git Credential Manager upgrade required for OAuth 2.0 Git authentication](https://harbyn.com/changes/bitbucket/2026-10-13-git-credential-manager-upgrade-required-for-oauth-2-0-git-authentication.md) (effective Nov 30, 2026)

[All upcoming deadlines](https://harbyn.com/deadlines.md)