# Log in to LINE Developers

You can log in to LINE Developers Console using one of the following accounts.

  • LINE account
  • Business account

For more information, see the difference between Log in with LINE account and Log in with business account (opens new window)in Help Center.

Which account should I use to log in?

If you're already using LINE, you can use your existing LINE account to log in. If you don't want to use your personal LINE account, you can use your work email address to create a business account. However, if you log in with a business account, there will be some limitations to the Available features.

# Log in to LINE Developers Console

To log in to LINE Developers Console, click the Log in button in the top-right corner of the LINE Developers site.

Click Log in

On the next screen, click Log in with LINE account or Log in with business account.

Log in to LINE Developers Console

# Log in with LINE account

After clicking Log in with LINE account, use either of these methods to log in.

  • Email address log in: Log in using the email address and password associated with your LINE account.
  • QR code log in: Log in using the QR code reader of your smartphone's LINE app to scan the QR code displayed.
Two-factor authentication is enabled when logging in with LINE account

Two-factor authentication is enabled when you log in using your LINE account. When you log in from a browser on your computer using an email address, you must enter the email address and password of your LINE account, and then enter the authentication code displayed on your smartphone's LINE App.

Two-factor authentication flow

Once two-factor authentication is executed, the browser used to log in won't require two-factor authentication again for one year. Also, if you've already logged in to LINE Official Account Manager (opens new window) using two-factor authentication, you won't be required to log in to the LINE Developers Console with the same account.

# Log in with business account

After clicking Log in with business account, use this method to log in.

  • Email address log in: Log in using the email address and password associated with your business account.

# Available features

Depending on the account you use to log in, you can create different channel types.

LINE Login Messaging API CLOVA Skill Blockchain Service LINE MINI App
LINE account ✅ *1
Business account linked to a LINE account ✅ *1
Business account not linked to a LINE account ✅ *2 ✅ *1

*1 Only a developer of a service that submitted an application to the LINE MINI App development program and passed the preliminary review is allowed to create a LINE MINI App channel.

*2 May not be able to create depending on circumstance.

On Tester access in business accounts

For LINE Login channels whose status is "Developing", even if you grant Tester access to a business account, you won't be able to log in to LINE using the email address and password associated with that business account. Only by linking a business account that has Tester access with a LINE account can you use that LINE account to log in to LINE. For more information on Tester access, see Channel roles.

Limitations apply depending on the permissions granted to your account. For more information, see Managing roles.

You can only link one business account per each LINE account. You can't link multiple business accounts to a single LINE account.

Use your business account to log in to LINE Official Account Manager (opens new window), click Accounts in the top-right corner of the screen, and then open Settings. Click on the chain icon next to Unlinked and log in to the LINE account you want to link your business account with. Once login is complete, the accounts will be linked.

Link to LINE account

When the message "This LINE account is already in use." is displayed

The LINE account that you want to link to your business account must not be registered in the LINE Developers Console. If you try to link your business account to a LINE account that you have previously registered with the LINE Developers Console, you will see a message that says, "This LINE account is already in use," and you won't be able to link the accounts.

Also, if the target LINE account is already linked to another business account, you will see the same message, "This LINE account is already in use," and you won't be able to link the accounts.

Link to LINE account