You may not be able to edit or delete some events in your system calendar via the LINE app.
Examples of events that cannot be edited or deleted
You may not be able to edit or delete the following types of events in the LINE app.
- Events where the repeat interval has been set in detail
(E.g. Events set with a custom repeat frequency, such as every two weeks) - Events that are part of a repeating event but have been modified individually
Solution
If you're unable to edit or delete an event, please use the app where you originally created or edited it to make those changes. The available actions vary depending on the app you created or edited the event on.