A Card Type Message is a rich message that groups products, images, and buttons into multiple cards shown in a horizontal scroll. You can let the agent create one for you, or build one yourself using the steps below.
What Is a Card Type Message
A Card Type Message is a message item that displays multiple cards in a horizontal scroll. You use it when you want to line up information in a single message, such as introducing products, showing a gallery of images, or presenting several options as buttons. Once created, a Card Type Message can be selected as the content to send in a Message Broadcast or in Auto Send Messages.
There are four card types.
| Type | Suited for |
|---|---|
| Product | Lining up a product image, product name, description, price, and action button to introduce a product |
| Image | Showing multiple images like a gallery |
| Button | Lining up buttons such as links or message sending as the main element |
| JSON | Writing LINE Flex Message JSON directly to create a freeform layout |
Let the Agent Create It for You
The easiest way to create one is to tell the Marketing Agent your goal. When you ask something like "I want to introduce three new products as cards," the agent prepares a draft of the structure and copy and proposes it as part of the overall broadcast.
Here is the flow when you let the agent take the lead.
- Tell the agent what you want to do (for example, "I want to line up the products on sale as cards and broadcast them")
- Review the content the agent proposes
- If the content looks good, choose "Approve" at the approval step; if you want changes, choose "Cancel" and give new instructions
If you want to adjust the details yourself, you can also create and edit one manually using the steps explained next.
Requirements for Using This Feature
To create a Card Type Message, the following must be true.
- You are logged in to Lumo
- Your LINE Official Account is connected
Open the Card Type Message Creation Screen
You open the creation screen from within the message items.
- Open "Message Broadcast" in the navigation menu
- Select "Card Type Message" from "Message Items"
- Click "Create Card Type Message"
Enter the Common Settings
Before configuring the cards, you enter the common settings that apply to the whole message.
| Item | Description |
|---|---|
| Name | A name to identify the Card Type Message |
| Card type | Choose from Product, Image, Button, or JSON |
| Alternative text | The text shown in push notifications and the chat list |
Alternative text is required. You cannot save it if it is left empty.
Configure the Card Content
Configure the content of each card according to the card type you selected. You can add more cards with "Add Card" and duplicate the same content with "Duplicate Card". Remove cards you do not need with "Delete This Card".
Product Card Settings
| Item | Description |
|---|---|
| Image | Upload the product image (recommended size 1024×1024px) |
| Title | Enter the product name |
| Description | Enter the product description |
| Price | Enter the product price |
| Action | Set the button text and action (such as opening a URL) |
Image Card Settings
| Item | Description |
|---|---|
| Image | Upload the image to display (recommended size 1024×1024px) |
| Title | Enter the image title |
Button Card Settings
| Item | Description |
|---|---|
| Label | The label text shown on the card |
| Description | Enter supplementary explanatory text |
| Action | Set the button text and action |
JSON Card Settings
| Item | Description |
|---|---|
| JSON | Enter the LINE Flex Message JSON |
| Format | Reformat the entered JSON to make it easier to read |
When the JSON format is invalid, an error appears in the input field. Fix it while watching the display.
Set Up Actions
For each Product, Image, and Button card, you can set an action that determines what happens when it is tapped. There are three action types.
| Type | Behavior |
|---|---|
| URL | Opens the specified URL |
| Message | The friend sends the specified text |
| Postback | Exchanges the specified data without showing it on the screen |
You can adjust the button's appearance with its style (link, primary, secondary) and color.
Check the Preview
On the creation screen, a preview of your settings appears on the spot. When no card has been configured yet, the message "A preview will appear once you configure a card" is shown. Check how it actually looks before saving.
Save the Card Type Message
Once the content is ready, click "Save Card Type Message" on the screen. A saved Card Type Message becomes available to choose when selecting a message in a Message Broadcast or in Auto Send Messages.
Organize and Manage Card Type Messages
On the Card Type Message list screen, you can manage the messages you have created in the following ways.
| Action | Description |
|---|---|
| Organize with folders | Create a folder and group Card Type Messages together |
| Move to folder | Move the selected Card Type Message into a folder |
| Move out of folder | Take a Card Type Message out of a folder |
| Delete | Delete a Card Type Message you no longer need |
Deleted Card Type Messages cannot be restored. Review the content before deleting.
When Things Do Not Work
When something does not display or save as configured, check the following points.
- Cannot save: Check that the name and alternative text are entered. Alternative text is required
- Cards do not display correctly: If you are using a JSON card, check whether a JSON format error is shown
- Image is not reflected: Check that the image upload has finished. While it is still uploading, wait for it to complete before saving
- Preview does not appear: Check that the card content and required items are entered