Error modification in PG-related payment confirm/cancel/loading function

Promotion interlock and click error modification

SNS (Kakao Talk, Naver) easy login and login related error modification

Identity verification function, verification result error modification

Web and app interlocking error modification

Map function error modification including current location/path/address/distance/map loading

Chart and graph error modification

Camera-related error modification Running a camera app/save/import photos

File upload capacity limit/type limit/file output and upload error modification

Collect/deduct/manage points, issue/cancel/manage coupon-related error modification

Push send/receipt/duplicated send/image error modification

DB-related error modification including connection error, structure/speed and problem and backup

E-mail sending/verification/receipt error modification

GPS linkage, location and error modification

IoT device interlock and data transmission error modification

Error modification in QR/Bar-code generation/scanning

SMS,MMS sending/verification/receiving, auto-transition to MMS error modification

SNS share link uncreated/disconnected related error modification

Web/mobile icon, text modification