This is a Web service that provides services based on the postal code / Digital Address (JPN ver only) such as the postal code / Digital Address API, to the corporate customers and proprietors.
For frequently asked questions or inquiries about “Postal code / Digital Address for Biz,” please refer to “Q&A for Corporate Customers.”
<Postal code / Digital Address for Biz (JPN ver only）>
https://guide-biz.da.pf.japanpost.jp
<Q&A for Corporate Customers (JPN ver only）>
https://www.post.japanpost.jp/question/business/index.html