If you notice a wrong address or contents entry after printing a Japan Post International Mail My Page label, make a new label rather than writing over the printed one. Japan Post says handwritten corrections are not allowed in principle. The PC version lets you use Recreate from Shipping History to correct and print the data; the smartphone version requires you to create the label again. A newly recreated label receives a new item number. These are the routes described in Japan Post’s correction FAQ and reprint FAQ.

Sender checks a blank sheet beside a parcel before going to the counter
AI illustration; the sheet is not a Japan Post label.

Did the printer fail, or is the information wrong?

The distinction matters for what to inspect, although both cases lead to a new label once My Page has marked the old one printed. If the paper jammed or the print is unusable after that point, Japan Post says you cannot print the same label again; on the PC version, open Shipping History → Recreate to make a new label with the same data. Check every field before printing the replacement. If the address, item description, or value is wrong, correct it in the recreated PC data first. On a phone, Japan Post says the printed label cannot be modified, so create it again from the start. Japan Post: reprinting and correcting.

For example, suppose you printed an EMS goods label and then spot one incorrect digit in the recipient’s postal code. This is a hypothetical case. Set the old sheet aside without attaching it to the parcel, use the appropriate route above, and compare the recipient postal code and country on the replacement against the address you were given. Then check the item number on the replacement and on any saved note or tracking reminder. The number changes when you recreate the label, so tracking the old number would send you to the wrong record. This is the practical reason to do more than simply get another sheet of paper.

Sender sets aside an old note and keeps the current parcel reference
AI illustration; use the new item number issued by My Page.

Which screen should you open?

Japan Post’s International Mail My Page overview distinguishes the PC and smartphone versions. The PC version prints on your own printer using A4 paper. The smartphone version creates data for a label printed at a Yu-pri Touch terminal at a post office; where there is no terminal, Japan Post says to show the printing number to the clerk. Go back to the same version you used and check whether you are looking at Shipping History or a new-label screen. The desktop Recreate option and the phone’s fresh-entry route should not be treated as the same button.

Before taking the parcel to the counter, read the replacement’s service, recipient, sender, contents, quantities and declared values against what is actually inside. Check which label and item number are attached to the parcel. This is an editorial checking procedure based on the difference between label creation and acceptance; it is not a claim that Japan Post has accepted or validated your item. If the service or contents are in doubt, use Japan Post’s current country and service information before handing it over.

What if only the planned posting date changed?

That is a narrower exception. Japan Post’s scheduled-date FAQ describes a specific condition under which the planned date can be changed by hand. Do not apply that exception to an incorrect recipient address, contents or value; the general correction FAQ still calls for a recreated label. Japan Post also has a separate, expressly described procedure for a visitor who wants an overseas sender address displayed on the printed label. That planned display change is not a way to fix an accidental data-entry error, because the original Japan sender address remains in the electronic data. If the label is old, check Japan Post’s validity FAQ before using it. A printed sheet, an online history record, and a mail item accepted at the counter are different states.

This guide is desk research. It does not cover a parcel already accepted by Japan Post, a refund, or a guarantee that an incorrect label will be accepted. The current My Page screen was not tested in an account.

Sources

For a visitor who needs an overseas return line, check the separate sender-address procedure.