# Create a One-off LINE Campaign

Engage Studio supports **LINE Official Account (LINE OA)** as a campaign channel alongside Email and Mobile Push. This guide covers how to create a one-off campaign that delivers LINE messages to your audience.

## Prerequisites

Before creating a LINE campaign, ensure you have completed the LINE setup:

- A LINE Sender Account configured in **Engage Studio > Configurations > LINE OA Configurations**
- The LINE Sender Account assigned to your workspace
- Customer profiles with **LINE User IDs** in Treasure Data CDP


See [LINE Official Account Setup](/products/marketing-cloud/engage-studio/channels/line/line-oa-setup) for details.

## Create a New One-off Campaign

1. In Engage Studio, navigate to **Campaigns**.
2. Click **+ New Campaign**.
3. Enter a campaign name, select **LINE Official Account** as the campaign type, and click **Create**.


Create Campaign dialog — enter campaign name and select LINE Official Account
The campaign details page opens with five tabs:

| Tab | Description |
|  --- | --- |
| **Target Audience** | Define the segment to receive the campaign |
| **Campaign Content** | Compose LINE messages and select the LINE Sender Account |
| **Delivery Schedule** | Configure send time (immediate or scheduled) |
| **Activation** | Review activation settings and retry policy |
| **UTM Tracking** | Set UTM parameters to append to all links |


## Target Audience Tab

Target Audience tab — select Target Parent Segment and Target Segment
Specify which segment of your customers should receive the LINE campaign.

1. Click **+ Add Segment** and select a segment from Audience Studio.
2. The campaign targets all profiles in the segment that have a **LINE User ID** stored in their CDP profile.


Missing LINE User IDs
Profiles without a LINE User ID are excluded from delivery. Each excluded profile is recorded in the delivery log with an error reason of `missing_recipient_id`. Review your segment's LINE User ID coverage before launch to estimate effective reach.

## Campaign Content Tab

Campaign Content tab — compose LINE messages with Imagemap and Text message objects, and preview on a mobile device
The Campaign Content tab is where you compose your LINE messages and select the sender account.

### Select a LINE OA configuration

From the **LINE OA configuration** dropdown, select the LINE Official Account to send from. Only LINE Sender Accounts assigned to your current workspace appear in this list.

### Add Messages

You can include up to **5 message objects** in a single campaign delivery. Each message object is sent as part of a single API call to LINE (a multi-message bundle).

To add a message:

1. Click **+ Add Message**.
2. Select a message type: **Text** or **Imagemap** (additional types coming in future releases).
3. Configure the message content (see [Supported Message Types](/products/marketing-cloud/engage-studio/channels/line/line-oa-message-types) for field details).
4. Repeat to add additional messages.


You can reorder messages by dragging them. Recipients receive all messages in the order they are arranged.

### Preview Messages

Each message object displays an inline preview. The preview shows the rendered appearance of the message as it will appear to LINE users on a standard smartphone screen.

## Delivery Schedule Tab

Configure when the campaign is sent.

| Option | Description |
|  --- | --- |
| **Send Immediately** | Delivery begins as soon as you launch the campaign |
| **Schedule for Later** | Specify a date and time for delivery to begin |
| **Recurring (To Be Supported)** | Send out on a regular basis. However, this is supported by the Always-On Campaign |


## Activation Tab

The Activation tab shows the execution configuration for the campaign. For LINE campaigns, messages are delivered through the Streaming Egress Connector (LINE OA Messaging Streaming Output).

Retry behavior is handled automatically by the connector:

- Transient errors (such as temporary LINE API unavailability) trigger automatic retries with exponential backoff.
- Permanent errors (such as invalid LINE User ID or deactivated account) are recorded as delivery failures without retry.


## UTM Tracking Tab

UTM parameters are automatically appended to all URLs within your LINE messages.

Default values for LINE campaigns:

| Parameter | Default Value |
|  --- | --- |
| `utm_source` | `line` |
| `utm_medium` | `social` |
| `utm_campaign` | *(empty — use `{{campaign.id}}` to populate with the campaign ID)* |


You can override or add additional UTM parameters on this tab. Parameters are merged with any existing query string in the URL.

See [Click Tracking](/products/marketing-cloud/engage-studio/channels/line/line-oa-click-tracking) for more information on how UTM parameters and click events are recorded.

## Launch the Campaign

1. Review all five tabs for completeness.
2. Click **Launch** (for immediate delivery) or **Schedule** (for scheduled delivery).


Before launch, Engage Studio validates:

- At least one message is configured
- A LINE Sender Account is selected
- The target segment is specified
- Messages conform to LINE API requirements (see [Message Types](/products/marketing-cloud/engage-studio/channels/line/line-oa-message-types) for validation rules)


If validation errors are present, they are shown inline on the relevant tab. Fix all errors before launching.

## Campaign States

| State | Description |
|  --- | --- |
| **Draft** | Campaign is being drafted and has not been launched |
| **Planned** | Campaign is scheduled to launch at a future time |
| **Active** | Campaign is actively delivering messages |
| **Finished** | Campaign has successfully finished delivery |
| **Suspended** | Campaign was canceled or encountered an error before launching |


## Next Steps

- [Supported Message Types](/products/marketing-cloud/engage-studio/channels/line/line-oa-message-types) — Detailed configuration for Text and Imagemap messages
- [Click Tracking](/products/marketing-cloud/engage-studio/channels/line/line-oa-click-tracking) — How UTM parameters and click events are tracked
- [Reporting](/products/marketing-cloud/engage-studio/channels/line/line-oa-reporting) — View delivery results and engagement metrics
- [Testing LINE Campaigns](/products/marketing-cloud/engage-studio/channels/line/line-oa-testing) — Test before launch