Q.

[Expo ID Registration] Do I need to prepare in advance for Expo ID registration?

A.

An email address and a device capable of screen lock authentication such as biometrics, passcode, pattern, or PIN are required.
Email addresses already used for Expo ID registration cannot be used.

https://www.expo2025.or.jp/wp/wp-content/themes/expo2025orjp_2022/assets/pdf/tickets-index/id_registration_manual_en.pdf