1Common Challenges
No designer on hand
A broadcast with a plain photo and a wall of text gets scrolled past, but briefing a designer for every promotion takes days.
Built for LINE Official Accounts
LINE broadcast tool: AI campaign messages, sent now or on schedule
Describe your offer and get a ready-to-send Flex rich message with artwork (8 credits). Check the preview, then broadcast to all friends or to a list of LINE user IDs — immediately or at the time you set. Sending is free in LineBot.pro; your LINE plan's monthly message quota applies.
No credit card required
50 free credits
Sending costs 0 credits
New campaign
- Setup
- Content
- Preview
- Audience
- 5Send
This weekend only
Brunch set −20%
Sat–Sun, 10:00–14:00. Show this message at the counter.
Book a table
Audience
All friends
User ID list · batches of 500
Send
Sat 09:30
Sending: 0 credits
0
credits to send
8
credits per AI message
500
user IDs per batch
5
steps from idea to send
Built for LINE Official Accounts
LINE Messaging API
Free to start
50 credits at sign-up
TH · JA · ZH · EN
Thai, Japanese, Chinese, English
Common Challenges
Why LINE broadcasts slip
Pressing send is easy. Everything before it is where campaigns stall.
2Common Challenges
Flex Messages are fiddly
Cards with an image and a button beat plain text, but building Flex JSON by hand is slow and easy to break.
3Common Challenges
Sent at the wrong moment
Promotions go out when someone remembers, not when customers are reading.
4Common Challenges
Quota burned by mistakes
Every recipient counts toward your LINE plan. A test sent to everyone, or the same promotion sent twice, uses messages you paid for.
5Common Challenges
Layout surprises
Without a preview, the first person to see a broken layout is your customer.
6Common Challenges
Rebuilding the same campaign
Monthly promotions get recreated from scratch instead of reused.
How It Works
Five steps, in the same order as the app
The campaign wizard walks you through exactly this sequence.
1
Setup
Pick the connected LINE Official Account and name the campaign. Quick ideas — flash sale, new product, holiday greeting, loyalty — prefill the prompt.
2
Content
Describe the offer in your own words (10 characters minimum). AI writes the brief, draws the artwork and builds a valid Flex rich message — 8 credits, refunded automatically if generation fails.
3
Preview
Check the message as it will appear in LINE before anything is sent.
4
Audience
Broadcast to all friends, or paste a list of LINE user IDs for a targeted send; lists go out in batches of 500.
5
Send
Send now or schedule a date and time. Sending costs 0 credits, and the delivery status appears on the campaign page.
Key Features
What the LINE broadcast tool does
Built to get a good-looking campaign out on time. What it doesn't do is listed further down.
AI-made Flex rich message
From a short description, AI writes the copy, draws a 1200×675 image and builds the Flex message in code: kicker, headline, text and a button, plus an optional “Call us” button. 8 credits.
Preview before anything is sent
See the message as it will look in LINE. Nothing goes out until you confirm the send or the schedule.
All friends or a user ID list
Broadcast to everyone who follows your account, or paste LINE user IDs — they start with “U” and are 33 characters long — to reach specific customers.
Automatic batches of 500
LINE accepts at most 500 user IDs per multicast request, so long lists are split for you.
Send now or schedule
Pick a date and time and the campaign goes out on its own. Until then, you can still send it right away or delete it.
Followers and quota after each send
Once a campaign is sent, its results show your current follower count and your monthly LINE message quota — useful when planning the next send.
Delivery status per campaign
Draft, scheduled, sending, sent or failed — plus a clear success or failure result and any error LINE returned.
Duplicate for the next promotion
Reuse a campaign that worked: duplicate it as a new draft and change only what's different.
Matching visuals from AI Studio
Need a banner and a rich menu for the same promotion? AI Studio makes the set from one brief — 26 credits for banner, rich message and rich menu.
LINE quota
What a send uses on LINE's side
LineBot.pro charges 0 credits to send. LINE counts every recipient of a broadcast or user-ID send against your plan's monthly messages (sends × recipients), while replies to customers don't count; once the monthly limit is reached, LINE returns an error and nothing more is sent (LINE Developers: Messaging API pricing). Counting rules and practical tips are in our LINE OA broadcast guide.
| Market | Free plan | Paid plans (monthly messages) |
|---|---|---|
| Thailand | 300 messages | Basic ฿1,280 → 15,000 · Pro ฿1,780 → 35,000 (excl. 7% VAT) |
| Japan | 200 messages (Communication Plan) | Light ¥5,000 → 5,000 · Standard ¥15,000 → 30,000 (excl. tax) |
| Taiwan (from 1 Nov 2026) | 200 messages (輕用量) | 中用量 NT$1,000 → 3,000 · 高用量 NT$1,400 → 6,000 (excl. tax) |
Sources: LINE for Business Thailand, LY Corporation (Japan), LINE Biz-Solutions Taiwan. Full details in our LINE Official Account pricing guide.
What it doesn't do
- No open or click analytics — use LINE's own analytics for engagement.
- No tags, segments or contact import: “Targeted” means a list of LINE user IDs you paste.
- No drip or step sequences — one campaign is one send.
- One Flex bubble per campaign (image, headline, text, button); no carousels.
- User IDs must come from your own provider's channels. LINE IDs and display names don't work, and friends who blocked you won't receive it.
Want to understand the message format first? Read what LINE rich and Flex messages are.
Industries We Serve
Campaign ideas by business
Prompts that work well. Write them in your own words — the AI builds the card.
Restaurants & cafés
Fill quiet days and launch new dishes.
- Weekday lunch set, sent at 10:30
- New seasonal menu with an order button
- Holiday opening hours notice
Retail & online shops
Turn followers into orders.
- Payday sale at the end of the month
- New arrivals with a shop button
- Restock alert only to customers who asked (user ID list)
Beauty & spas
Fill open appointment slots.
- Treatment of the month
- Free slots this week
- Rainy-season hair-care offer
Clinics
Useful reminders, no hard sell.
- Health check package
- Holiday closure notice
- Flu vaccination season reminder
Schools & courses
Fill the next intake.
- New intake now open
- Early-bird price for exam prep
- Open house invitation
Real estate
Keep buyers posted.
- New project launch
- Open-house weekend
- Price update on a listing
Built to send the right thing, once
0
Credits to send
You pay credits to create, never to deliver.
8
Credits per AI message
Artwork, copy and a valid Flex message. Failed generations are refunded automatically.
500
User IDs per batch
Long lists are split automatically to fit LINE's per-request limit.
1×
Sent once
Double clicks, retries and the scheduler can't deliver the same campaign twice.
LINE OA Audit
Get an Expert LINE OA Audit
Start with a comprehensive analysis of your LINE presence
LINE OA Audit
Professional audit of your LINE presence with actionable recommendations
฿2,500 / one-time
- Account health check
- Competitor benchmark
- Content strategy and rich menu review
- Automation roadmap
- Report within 3–5 business days + 30-minute call
Need a Custom Audit?
For complex setups or several accounts, tell us what you need and we will scope a tailored audit with you.
Contact UsFrequently Asked Questions
Frequently Asked Questions
What is a LINE broadcast tool?
Software that prepares and sends messages from your LINE Official Account to many friends at once. LineBot.pro focuses on the content: AI creates a Flex rich message with artwork, you check the preview, then broadcast to all friends or to a list of user IDs — right away or on a schedule.
How much does it cost to send a LINE broadcast with LineBot.pro?
Sending costs 0 credits; creating the message with AI costs 8 credits. LINE then counts each recipient against your LINE Official Account plan's monthly messages — as of October 2026, for example, 300 a month on Thailand's free plan, 200 on Japan's Communication Plan and 200 on Taiwan's free 輕用量 plan.
Can I send to specific customers instead of all friends?
Yes. Choose Targeted and paste LINE user IDs — they start with “U” and are 33 characters long, and your webhook receives them when customers interact with your account. LINE IDs and display names won't work, IDs collected under another provider won't be delivered, and friends who blocked you don't receive it. There are no tags or segments to filter by.
Can I schedule a LINE broadcast?
Yes. Pick a date and time in the last step: the campaign shows as Scheduled and is sent automatically. Until it goes out, you can still send it right away or delete it.
Does LineBot.pro show open and click rates?
No. Each sent campaign shows its delivery result (sent or failed, with any error from LINE), your follower count and your monthly LINE message quota. For engagement statistics, use LINE's own analytics, such as LINE Official Account Manager.
How is this different from broadcasting in LINE Official Account Manager?
LINE Official Account Manager can broadcast too, with its own targeting options. LineBot.pro adds the creative side — an AI-made Flex message with artwork in minutes — plus scheduling, user ID lists and a delivery status per campaign. You can use both.
Can a campaign be sent twice by mistake?
No. Each campaign can only be claimed for sending once, and every request to LINE carries a retry key, so a double click, a network retry or the scheduler can't deliver the same campaign twice — and can't waste your quota that way.
Which languages can campaign messages be written in?
Thai, Japanese, Traditional Chinese and English. The language of your prompt is detected and the message is written in that language.
Talk to our LINE team
Get a free consultation: tell us what you want to do on LINE and we'll recommend the right tools or quote the custom work.
Related Services
Related Services
Guides & Resources
Guides & Resources
LINE OA Broadcast: How to Send, Quotas & Tips (2026)
How to send a broadcast from LINE Official Account Manager on the web and in the app, which message types and filters you can use, how LINE counts messages against your monthly quota, image sizes, timing tips and ready-to-adapt examples.
Read Article
LINE Rich Message vs Card & Flex Message: Sizes & Setup
What a LINE rich message is and how it differs from card-based, rich video and Flex Messages — with LINE's official sizes, limits and step-by-step setup for each format.
Read Article
LINE Official Account Pricing 2026: Plans by Country
What a LINE Official Account really costs in October 2026: free and paid plans in Thailand, Japan and Taiwan, extra-message prices, Taiwan's November 1 price change, how messages are counted, worked examples and ways to cut your bill.
Read ArticleStart free — no credit card needed
Send your next LINE campaign on time
Create the message with 50 free credits, check the preview, then broadcast now or on schedule.
No credit card required
Credits never expire