Q. [Expo ID]Can I change my ExpoID? A. Sorry, once registered, the ExpoID cannot be changed. Related articles [Expo ID Registration] I am unable to complete the update on the Expo ID profile entry screen. [Deletion of Expo ID] I would like to delete my Expo ID. [Expo ID] I want to change my password. [One Time Password Authentication for Expo ID] I want to change the email address that I receive the "authentication by email" notifications to. [Pavilion and event Reservations] Do I have to book in advance to get into the pavilions and events?