> For the complete documentation index, see [llms.txt](https://blog.mantago.cc/en/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://blog.mantago.cc/en/social-integrations/line-login-integration.md).

# LINE Login integration

Once LINE Login is connected, users can sign in to your service with their LINE identity in one tap—no new account or password needed. The setup has two parts: first create a LINE Login channel in the LINE Developers console, then paste the keys back into your MantaGO backend to bind it.

***

### Step 1: Create a LINE Login Channel in LINE Developers

> ⚠️ Create the LINE Login channel under the **same Provider** as your Messaging API (LINE OA) channel.

#### 1. Log in and create a new channel

Sign in to the [LINE Developers console](https://developers.line.biz/console/) with an account that has **LINE Developers Admin** permission, then open the **Provider** that holds your LINE OA.

Click **Create a new channel** and choose **LINE Login** as the channel type.

<figure><img src="https://971361156-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FjEgYnj4JfzImd872neOw%2Fuploads%2FlpHUNjHu9n73blVUExPE%2FSCR-20260617-kkli.png?alt=media&amp;token=8a07cfd2-39f4-4b56-83ca-f47f814fb4bb" alt=""><figcaption></figcaption></figure>

<figure><img src="https://971361156-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FjEgYnj4JfzImd872neOw%2Fuploads%2FZcPMgzpH4BRGEoPa5EbB%2FSCR-20260617-klbp.png?alt=media&amp;token=501d4d7e-786c-489d-94ad-28ab18cffcb8" alt=""><figcaption></figcaption></figure>

#### 2. Fill in the channel basics

1. **Region to provide the service**: select **Taiwan**
2. **Company or owner's country or region**: select **Taiwan**
3. **Channel name**: enter a name (up to 20 characters)
4. **Channel description**: enter a description (up to 500 characters)
5. **App types**: check **Web app**
6. **Email address**: enter a contact email
7. Scroll to the bottom, check **I agree to the LINE Developers Agreement**, and click **Create** to finish creating the channel

Channel icon is optional—feel free to skip it.

<figure><img src="https://971361156-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FjEgYnj4JfzImd872neOw%2Fuploads%2FlBtgrZQXQySnoDhHrMUV%2FSCR-20260617-kllv.png?alt=media&amp;token=84280e0e-ea17-47b9-b659-7f58e3c061e2" alt=""><figcaption></figcaption></figure>

<figure><img src="https://971361156-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FjEgYnj4JfzImd872neOw%2Fuploads%2FrbGmg2qNZDYKX9mKerK2%2FSCR-20260617-klzo.png?alt=media&amp;token=456a16ef-82bf-4608-b1bf-a0cb32c20a34" alt=""><figcaption></figcaption></figure>

***

### Step 2: Paste the Keys into MantaGO to Bind

#### 1. Copy the Channel ID

Open the LINE Login channel you just created. Under **Basic settings** → "Basic information," find the **Channel ID**, click the copy button, and paste it into the matching field in your MantaGO backend.

<figure><img src="https://971361156-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FjEgYnj4JfzImd872neOw%2Fuploads%2F9qRDt673kfC7aEaBN70z%2FSCR-20260617-mscr.png?alt=media&amp;token=a87c42f6-dc82-49ca-a6ca-4e13b20a7d8c" alt=""><figcaption></figcaption></figure>

#### 2. Copy the Channel secret

On the same page, scroll down to **Channel secret**, click the copy button, and paste it into the field below in your MantaGO backend.

<figure><img src="https://971361156-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FjEgYnj4JfzImd872neOw%2Fuploads%2FxvISsCdsyEu3EnGXImST%2FSCR-20260617-mspz.png?alt=media&amp;token=8f009cef-5919-458c-b6be-517f8eee29b5" alt=""><figcaption></figcaption></figure>

#### 3. Set the Linked OA

Under "Add friend option," find **Linked LINE Official Account**, click **Edit**, and select the **Messaging API channel** you want to bind.

> ⚠️ Make sure the Linked OA points to the **same matching LINE OA**—binding the wrong account will break the features that follow.

#### 4. Switch the status to Published

Scroll back to the top of the page, where the status next to the channel name reads **Developing**. Click it, then click **Publish** in the confirmation dialog. Once the status turns to **Published**, the binding is complete.

<figure><img src="https://971361156-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FjEgYnj4JfzImd872neOw%2Fuploads%2FNAJjLbTuQTx8ZECNgFC2%2FSCR-20260617-mtam.png?alt=media&amp;token=17a604fe-7e9d-4d19-b066-80498aadb237" alt=""><figcaption></figcaption></figure>

<figure><img src="https://971361156-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FjEgYnj4JfzImd872neOw%2Fuploads%2Fi0UsXYe85YvJESFw8Fel%2FSCR-20260617-mtey.png?alt=media&amp;token=5ea71dec-138d-43ec-ac50-c7b2e24c098c" alt=""><figcaption></figcaption></figure>

***

### You're all set! Now Put These LIFF Features to Work

With LINE Login connected, these MantaGO features that rely on LIFF go live, letting users act right inside LINE:

* **Form**: Fields like name, mobile, email, birthday, and address auto-fill as users complete a form, and the collected data syncs straight into your member system and Google Sheets.
* **Booking**: Users pick an available slot in the LIFF interface, and the system pushes a reminder to both the user and the admin before the appointment.
* **Member center**: Users self-serve to check their own form submissions, booking history, lucky-draw records, prizes won, plus their reward card and points.
* **Reward card**: Members earn and redeem points, with in-store point QR codes tying online and offline together.
* **Shortlink tracking**: Turn any URL into a short link and easily track how users engage with your links.