You cannot change (modify) the information registered through “e-Tenkyo” on the website or the Japan Post Official App (JPN ver only).
We apologize for the inconvenience, but please consult the post office in charge of delivery to your new or old address, bringing along the driver’s license, health insurance certificate, or other ID of the person who made the request.
When consulting, please provide the “reception number of the change-of-address form.”
You can find the post office in charge of delivery by entering the Postal Code of your address in the “Search by Postal Code” function on the page below.
＜Check post offices for Yu-Yu Window, collection, and delivery services＞
https://www.post.japanpost.jp/shiten_search/
<Related questions>
Q. What is the reception number of the change-of-address form?