Frequently asked questions

Frequently asked questions about JustFlow for LINE.

Click a question to open the answer.

Which LINE account are messages sent from?

Messages are sent from the merchant’s own LINE Official Account. In the app’s Settings, you connect the Messaging API channel and the LINE Login channel of your LINE Official Account (Getting started).

Do I need to change my LINE webhook settings?

No. JustFlow for LINE does not set or change the webhook URL, so you can use it alongside other tools that already use the webhook.

Who can I send messages to?

Customers who have linked their LINE account with LINE Login. For campaigns, you can also choose LINE audiences created in places such as the LINE Official Account Manager as recipients.

What happens if Flow sends to a customer who has not linked LINE?

The message is not sent. The workflow run does not fail.

Where can customers link their LINE account?

From entry points placed on the thank you page, the order status page, an online store theme block, or the profile page of the customer account, and from the store’s linking page (/apps/line/link). Customers need to be logged in to the store to link.

Can customers unlink their account?

Yes. They can unlink on the store’s linking page.

What kinds of messages can I send?

Text and Flex messages. You can build Flex messages in the app’s editor while watching a preview.

Is there a limit on how many messages I can send?

Sending follows the message quota of your LINE Official Account plan. You can check your current quota on the app’s Settings screen.

Can I see orders and sales from LINE?

When the merchant grants permission to read orders, you can see orders and sales from LINE in Analytics. Sends, people who opened, and people who clicked are shown even without that permission.

Can I create campaigns with AI?

Yes. JustFlow for LINE supports MCP, so AI tools such as Claude Code, Codex, and Cursor can create campaign drafts. To connect, issue a token in AI integration (MCP) in the app’s Settings. For details, see this article.

Can AI send messages to customers on its own?

No. AI can only create and edit drafts. It cannot send, schedule, or delete. Messages are sent only when the merchant presses the send button on the campaign confirmation screen.

Which languages does the admin support?

Japanese, English, Thai, and Traditional Chinese.

How much does it cost?

Please check the JustFlow for LINE page on the Shopify App Store.

How can I contact you?

See the support page. How we handle personal information is described in the privacy policy.

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