# LINE Sign-in configuration
Use this when you want to enable the **LINE** button in an enrolment form.
Start with [Social sign-in](https://docs.thewalletcrew.io/enroll/enrolment-form/social-sign-in) to understand the user flow. Then come back here for the provider setup.
Connect with Line in an enrolment form example
### Overview
#### What you'll set up
* A **Line Channem** with the Line Login product enabled.
* **Allowed OAuth redirect URIs** and **valid domains** for your enrolment form.
* The App ID stored in **The Wallet Crew** admin console.
#### Prerequisites
* Access to your **LINE Developers Console**.
* Permission to create and manage **channels**.
* The list of domains where your enrolment forms will run (prod + staging + dev + custom).
### Create the LINE channel
{% stepper %}
{% step %}
#### **Create a provider and channel**
Go to the LINE Developers Console
1. Select or create a **Provider**
2. Click **Create a new channel**
{% endstep %}
{% step %}
#### **Select LINE Login**
1. Choose **LINE Login**
2. Select app type: **Web app**
3. Fill the required information
4. Create the channel
{% endstep %}
{% step %}
#### **Enable Email permission (OpenID Connect)**
Open your channel settings:
1. Go to the **OpenID Connect** section
2. Enable **Email address permission**
This step is required if your enrolment flow depends on email.
{% endstep %}
{% step %}
#### **Configure callback URLs**
In the **LINE Login** tab:
Add a callback URL for each environment:
```http
https://app.neostore.cloud/auth/callback/line
https://app-qa.neostore.cloud/auth/callback/line
https://app-dev.neostore.cloud/auth/callback/line
https:///auth/callback/line
```
Important:
* The full URL must match exactly
* Include `/auth/callback/line`
* Add prod + QA + dev + custom domains
Save your changes.
{% endstep %}
{% step %}
### Publish your channel
In the top-left corner, click **Developing**.
Then click **Publish** to make the channel available for production use.
{% endstep %}
{% endstepper %}
### Configure LINE in The Wallet Crew
In The Wallet Crew Backoffice, open the LINE configuration page.
Copy the values from the LINE Developers Console into The Wallet Crew.
After saving, keep this page open for a quick cross-check:
* The LINE channel must be the same one used for the callback URLs.
* The saved `clientId` must match the **Channel ID** exactly.
{% hint style="info" %}
You can find these values in:
LINE Developers Console → Your channel → **Basic settings**
{% endhint %}
### Enable LINE on your enrolment form
Enable the provider in the enrolment form settings.
Go into `advanced configuration -> Layout`. Open the layout to activate social sign-in on and add these lines:
signinOptions:
providers:
- type: line
For more information see [Enrolment form](https://docs.thewalletcrew.io/enroll/enrolment-form).
### FAQ
Which LINE channel type should I create for this setup?
Create a **LINE Login** channel with app type **Web app**.
That’s the channel type that supports the OAuth callback flow used by enrolment forms.
Do I need to enable “Email address permission” in OpenID Connect?
Enable it if your enrolment flow requires an email.
Without it, LINE may not return an email for the user.
What callback URLs do I need to add?
Add one callback URL per environment.
The URL must match exactly and must include `/auth/callback/line`.
Use the patterns listed above for prod, QA, dev, and any custom domain.
Where do I find the LINE clientId ?
In the LINE Developers Console:
**Your channel → Basic settings**.
Copy the **Channel ID** into `authentication.clientId`.
How do I actually show the LINE button on the enrolment form?
Enable the provider in your **enrolment form settings**.
If you manage buttons via layout YAML, add `- type: line` under `signinOptions.providers`.
