As of October 19, 2020, two-factor authentication has been introduced for LINE Developers Console login.
When you log in to LINE Developers Console from a browser on your computer using your LINE account, after entering the email address and password of your LINE account, you must also enter the authentication code that's then displayed on your computer screen in LINE on your mobile device.
You won't need to use two-factor authentication on the browser for one year after the first time you use it to log in.
Also, if you have already logged in to LINE Official Account Manager (opens new window) using two-factor authentication, when you log in to LINE Developers Console using the same account, two-factor authentication will not be prompted.
We will continue to work on improving the quality of the LINE Developers Console. We look forward to your continued support.