Line Pay Corporation

Soon-Yong Lee

Bong Gun Song

Kyewan Jun

Boram Kim

Won Hyuk Choi

According to at least some example embodiments, service interworking methods and systems are provided to identify registered users using different user identification systems performed by a first server having at least one processor and configured to identify registered users using a first user identification system, the method comprising: generating a first reference identifier of a first user in association with a first identifier identifying the first user in the first user identification system; managing the first reference identifier in association with the first identifier; receiving a second identifier identifying the first user in a second user identification system from the first user; and transmitting the first reference identifier and the second identifier to a second server configured to identify registered users using the second user identification system.

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Seongnam-si, South Korea

Soon-Yong Lee