[パラメーター形式異常][item_pkg_0]:半角英数字でご入力ください
This is an error from Japan Post which occurs when a product name contains characters that are invalid due to it's size. Please make sure that the product names are written in normal width letters.
The number following pkg_ indicates the product number in the label.
Japan Post requires full-width characters as the packages are intended for worldwide delivery, necessitating the use of full-width characters.
For any other errors
If you encounter an error that is not related to the above issue, please contact our support team.
Our customer support: support@lunaris.jp