Starting from 1 April, 2023, K-ETA approval is temporarily waived for visa-free foreign visitors (Swedish citizens) to enter Korea.
However, even if you are a citizen of an exempt country (Sweden), you can apply for K-ETA if you wish to apply for other benefits such as skipping the entry form when entering the Republic of Korea. It's possible.
※ The previously issued advance travel permit can be used until the expiration date
※ For more information, please check K-ETA official website.
(https://www.k-eta.go.kr/portal/apply/index.do)