On the 19th of June, the Hungarian health service provider made it possible for foreign citizens to register for the vaccination and book an appointment for the vaccination on its electronic online platform (EESZT) even without a Hungarian social security number.
Valid registrants will receive a notification email to the email address they provided during their pre-registration, including the link to the English-language booking platform for those without a social security number and the technical identification number (PID number) generated by the EESZT.
By clicking on the link in the email notification, they can access the appointment booking platform by using one of the identifiers they provided when registering and the PID number they received.
For pre-registration and more information, please visit this website.
Source: https://koronavirus.gov.hu