You can change your Expo ID from the Expo ID Menu page under "Profile" → "Update".

Please note that the Expo ID and date of birth cannot be changed.

If you have set your Expo ID and date of birth incorrectly, you will have to delete your current Expo ID and register for a new one. However, please note that if you have an admission ticket, you will not be able to use it once you have deleted your ExpoID. If you already have an admission ticket, please use your Expo ID as is.

Please note that you will not be able to use the same email address for 20 days after you delete your ExpoID, so please wait 20 days and register again or register again with a different email address.