Q. [Expo ID Registration]What external account services can be linked? A. You can use the services shown on the Expo ID “Login” page. Related articles [Expo ID Registration] What happens if I link to an external account? [Expo ID Registration] I want to disconnect from an external account. [Admission Tickets] If family members, friends, etc. enter at the same time, can they enter with only one phone and one Expo ID? [Expo ID registration] There is an error when I try to link my LINE account. [Expo ID Registration] I want to change the social media account used for login.