內容簡介
Hera Japan Postcode Autofill for WooCommerce 是一款專為 WooCommerce 設計的外掛，能自動填寫日本地址的都道府縣、市及街道，提升結帳流程的便利性。顧客只需輸入七位數郵遞區號，系統便會自動填入相關地址資訊，適用於所有向日本運送的商店。
【主要功能】
• 自動填寫都道府縣、市及街道
• 支援結帳區塊及經典結帳
• 不會覆寫顧客手動輸入的街道
• 接受全寬數字並自動轉換格式
• 覆蓋約143,000個郵遞區號
• 無需配置，無設定畫面
外掛標籤
開發者團隊
② 後台搜尋「Hera Japan Postcode Autofill for WooCommerce」→ 直接安裝（推薦）
原文外掛簡介
Hera Japan Postcode Autofill for WooCommerce fills in the prefecture, city and street of a Japanese address as soon as the customer types the 7-digit postcode. It works on the Checkout block, on the classic checkout and on the address form under My account, for billing and shipping addresses alike.
This is an independent plugin, not affiliated with, endorsed by, or sponsored by WooCommerce or Automattic. WooCommerce is a trademark of Automattic Inc.
When the country of an address is Japan, WooCommerce already asks for the postcode before the prefecture, city and street. A Japanese postcode settles most of what comes after it, so the customer types seven digits and checks the result instead of typing the address out. The plugin works for any store that ships to Japan, whatever language the store itself uses.
Features
The prefecture (WooCommerce’s state field), the city and the street are filled in as soon as the seventh digit is typed.
Works with the Checkout block, the classic checkout and My account > Addresses.
Never overwrites a street the customer typed. When the postcode changes, the prefecture and city follow it, and what the plugin filled in is cleared again if the postcode is no longer complete.
Accepts full-width digits such as １００－０００１ and rewrites them as 100-0001, the form WooCommerce accepts, as soon as all seven are in.
Fills in only what the postcode settles. A postcode shared by several towns leaves the street empty, and one shared by two cities leaves the city empty, instead of guessing.
Covers about 143,000 postcodes, including those Japan Post assigns to a single large business, which fill in the street number as well.
Acts only on addresses whose country is Japan. Addresses in other countries work as before.
Tells screen reader users when it has filled in an address.
Nothing to configure: no settings screen and no database tables.
No external connections
The postcode data ships inside the plugin, in one small file for each set of first three digits. When a customer types a postcode, the browser loads that one file from your own site. Nothing is sent to Japan Post or to any other service, no remote script is loaded, and the plugin stores nothing.
Postcode data
The data comes from the postcode files Japan Post publishes for addresses and for large businesses, in the release of 30 September 2026. Japan Post states that it does not claim copyright on this data and that anyone may redistribute it: https://www.post.japanpost.jp/service/search/zipcode/download/utf-readme.html. Plugin updates bring newer data, and the changelog names the release each version carries.
Documentation
The user guide is at herapress.com/docs.
Support
Use the support forum on this plugin’s WordPress.org page. Please say which postcode you typed, whether your store uses the Checkout block or the classic checkout, and which WordPress and WooCommerce versions it runs.
