Adding a LIFF app to your channel

When you add a LIFF app to a LINE Login channel on the LINE Developers Console, the LIFF app can run either in LINE or in an external browser.

Before you begin

Make sure you've done the following:

• Created a channel for your app.
• Deployed the LIFF app on any server according to the instructions in Trying a LIFF starter app or Developing a LIFF app.

Using share target picker

When using the share target picker liff.shareTargetPicker() in the LIFF app, developers should carefully read and agree to the Agreement Regarding Use of Information content. This agreement is required for each channel.

1. In the LINE Developers Console, select the LINE Login channel to which you want to add the LIFF app and click the LIFF tab.

2. Click shareTargetPicker, carefully read the displayed contents and check I have read and agree to the Agreement Regarding Use of Information, then click Enable.

Adding the LIFF app to your channel

You can add up to 30 LIFF apps to each channel.

1. On the LINE Developers Console, select the LINE Login channel to which you want to add the LIFF app, then click the "LIFF" tab.

2. Click Add.

3. Concatenate the following items in the order listed. You can always change your settings later:

   Basic information

   Item	Description
   LIFF app name	Name of the LIFF app. The LIFF app name specified in this item is displayed to the user. The LIFF app name can't include "LINE" or similar strings, or inappropriate strings.
   Size	Size of the LIFF app view. Select one of: Compact Tall Full
   Endpoint URL	The URL of the LIFF web app (e.g. https://example.com). This URL will be used when the LIFF app is launched using the LIFF URL. The URL scheme must be https. URL fragments (#URL-fragment) can't be specified.
   Scopes *1	Scope required for some LIFF SDK methods to function. openid: Scope required to use liff.getIDToken() and liff.getDecodedIDToken(). email: Scope required to get the user's email address using liff.getIDToken() or liff.getDecodedIDToken(). *2 profile: Scope required to use liff.getProfile() or liff.getFriendship(). chat_message.write: Scope required to use liff.sendMessages(). Depending on your account type, this option may appear under View all. *3
   Add friend option *4	The setting for add friend option On (normal): Adds the option of adding the LINE Official Account as a friend on the LIFF app permission consent screen. On (aggressive): Displays a screen after the LIFF app permission consent screen to confirm whether the user wants to add the LINE Official Account as a friend. Off: Doesn't display the option of adding the LINE Official Account as a friend.

   Options

   Item	Description
   ScanQR	Enable this setting when using liff.scanCode() in the LIFF apps added to this channel.
   Module mode	Enable this setting when using the LIFF app in module mode. When Module mode is enabled, the action button in the header is hidden. This option will be displayed only if you have selected Full for size of the LIFF app view.

   *1 For more information on scopes displayed to corporate customers who are registered to use the scopes, see LINE Profile+ under Options for corporate customers.
   *2 Displayed only if you applied for OpenId Connect email permission in a LINE Login channel.
   *3 After transitioning from LIFF A to LIFF B, the chat_message.write scope will be disabled in LIFF B, whereby the liff.sendMessages() method, which requires the chat_message.write scope, will no longer be available. For more information on the transition between LIFF apps, see Opening a LIFF app from another LIFF app.
   *4 Displayed only for LINE Login channels.

4. Click Add.

   When adding the LIFF app, a LIFF ID and LIFF URL are created.

   Item	Description
   LIFF ID	LIFF app ID. e.g. 1234567890-AbcdEfgh
   LIFF URL	The URL to access to LIFF apps. When users access the LIFF URL, they are redirected through the LIFF server provided by LINE to the LIFF app server (endpoint URL) provided by the developer. e.g. https://liff.line.me/1234567890-AbcdEfgh

The order of LIFF apps on the LIFF tab

On the LIFF tab of LINE Login channels, the LIFF apps will be displayed in the following order:

1. The LIFF apps added to the LINE Login channel on or after May 23, 2023 will be displayed in descending order of the date added
2. The LIFF apps added to the LINE Login channel before May 23, 2023 will be displayed in no particular order

Other operations

You can also perform these operations from the LIFF tab of the LINE Developers Console.

• Edit LIFF app settings
• Delete the LIFF app from your channel

Next steps

After adding the LIFF app to your channel, try opening it.

• Open the LIFF app