SATSUMA CREATIVE / TAIPEI — LINE BOOKING ★ OPEN FOR PROJECTS

No app to download, no forms to fill out —your customers book entirely inside LINE.

Only genuinely available slots are shown, so whatever they pick, they get. One reminder the day before and one before the start; customers can cancel to reschedule and the slot goes straight back into the pool. The whole flow runs inside the chat— no redirects, no switching interfaces.

From NT$45,000 · Live in 3–4 weeks · Working demo — add it as a friend and try it now
Email us about your project Try the demo first
Situation one

Bookings get negotiated one LINE message at a time. Miss a reply while you're busy and the customer books elsewhere.

Situation two

You're paying monthly for a booking system, but it can't handle your flow — you need birth details up front, different practitioners, a deposit — so you patch the gaps by hand.

Situation three

Two customers land on the same slot and you have to call one of them to apologise. That can't happen twice.

01 / Live Demo

Try it first,talk money later

We built and run a complete LINE booking system as a live demo. Not a video, not screenshots — add it as a friend right now and walk the whole flow.

Running in productionsaomin.tw/fate ↗

FATE Fortune Agency — online divination bookings

Four practitioners, each with their own specialities and schedules. Customers pick a practitioner and a slot, and someone has to open the session when the time comes.

See for yourself Add on LINE @832hjmkt: one free reading → pick a practitioner → see only genuinely open slots → get a pre-session reminder → the practitioner opens the session on time. All without ever leaving LINE.

  • Flex cards
  • Native time picker
  • Atomic slot locking
  • Reminder push
  • Human handoff
Running in productionebike.saomin.tw ↗

E-bike rental — test-ride bookings

Rental enquiries were scattered across LINE and phone calls. Customers asked, then disappeared, with no record to follow up on.

Result Bookings push straight to the owner's phone, the admin panel shows orders and customer lists, and closing a job updates the status automatically.

  • Booking form
  • Admin panel
  • Telegram push
The same framework already runsthree productionLINE bots. The hard parts — signature verification, multi-step guidance, making sure a slot can't be taken twice, human handoff — are written once and never again.
Only three pieces genuinely get rebuilt per project:conversation flow, data schema, persona
02 / Decide

First, a judgement call:should you just use a monthly SaaS?

Off-the-shelf LINE booking SaaS (HotCake, SimplyBook and similar) runs a few hundred to a couple of thousand NT dollars a month. If you're in the left-hand column, go use them — you don't need us.

i.

You should use a monthly SaaS

A few hundred to a couple of thousand NT$ a month, running the same day
  • Standard flow: pick a service → pick a time → confirm
  • One location, one or a handful of staff
  • No need to connect to your existing systems or databases
  • Limited budget — you just need something working
  • Fine with someone else's branding in the interface
Subscription / not our business
Honestly Custom doesn't pay off here, and we'll tell you so directly
ii.

Custom pays off

Non-standard flow, or data that has to stay in your hands
  • You need information before the booking (birth details, symptoms, vehicle model, requirement forms)
  • Multiple roles, venues or branches, with complex scheduling rules
  • You need to connect an existing CRM, POS or membership database
  • Free-text questions still have to work (AI parses them into bookings)
  • Customer lists and conversation records must stay in your hands
  • Five years of subscription fees already exceed a one-off build
From NT$45,000 / from $1,500
Timeline 3–4 weeks, including LINE Official Account setup and admin panel
Not sure which column you're in?Describe your booking flow to Xiao-Aiand they'll help you work out whether a monthly system can handle it. Getting this one wrong is expensive — worth asking first.
03 / What you get

What we buildactually looks like this

Every item below works on the FATE demo — go verify it yourself.

01

Only bookable slots are shown

no wasted picks

Dates and times both use LINE's native pickers, and only genuinely open slots are listed. Whatever they pick, they get — no "sorry, that's already booked" after submitting.

02

Atomic slot locking

two simultaneous taps still won't collide

The slot is locked at the database level first, and only the winner is written in. This is where booking systems most often break — not in the interface.

03

Two-stage reminders + self-service rescheduling

fewer no-shows

One the night before, one before the start. Customers cancel themselves to reschedule, and the slot returns to the pool automatically. No manual support required.

04

Free-text questions still work

AI only interprets, it never decides

When customers skip the buttons and type "any openings Friday night?", the system still parses it into a booking intent. Available slots are still queried from the database by code — the AI won't invent a time that doesn't exist.

05

Admin panel

full visibility for you

Booking lists, schedules (weekly templates that roll forward automatically) and full conversation logs. Day-to-day content is yours to edit — no need to come back to us.

06

One phrase and it's a human

the bot knows when to stop talking

When a customer asks for a human, the bot locks itself out and the message goes straight to your Telegram, where you reply directly. Hand it back to the bot when you're done.

04 / Pricing

From NT$45,000,the quote is the total

Priced by number of services, staff and venues, and whether existing systems need connecting. Once confirmed, no additional hours are billed.

i.

LINE booking system

Includes LINE Official Account setup, booking flow, reminder push and admin panel
  • Multi-step guided booking flow
  • Only open slots shown + atomic locking
  • Two-stage reminders, self-service rescheduling and cancellation
  • Schedule admin panel (weekly templates)
  • Instant human handoff on request
  • 30 days of free adjustments after launch
From NT$45,000 / from $1,500
Timeline 3–4 weeks
ADD-ONS

Build the website too

Booking data is shared across both, so customers get the same system whether they arrive via the website or LINE. Websites from NT$18,000, quoted on overall scope when built together.

Take deposits online

ECPay or MyCard payment integration, so deposits are taken at the moment of booking and no-shows drop. Priced separately depending on the payment provider's plan.

Connect existing systems

Write bookings back into your current CRM, POS or membership database. Priced separately depending on whether that system has an API — we need to look at it before quoting.

All prices arestarting prices, with the final quote based on scope. Once confirmed, the quote is the total —no hourly billing, no hidden fees
The LINE Official Account's own monthly fee is paid by you directly to LINE and the account is registered in your name; we neither collect nor hold it.
05 / Process

Four steps,progress you can see

01

Talk through the flow

30 minutes · quote the same day

Walk us through how you take bookings today. This step decides whether you should be using a monthly system at all — if you should, we'll say so rather than take the job.

02

Flow diagram sign-off

3 working days

We map every step and every branch (fully booked, cancellation, rescheduling, human handoff) into a diagram for you to approve. Skip the alignment here and there's guaranteed rework later.

03

Build and trial run

3–4 weeks

You get a test LINE account first and walk through it as a customer a few times. We only switch to the live account once it genuinely flows.

04

Handover

30 days of adjustments after launch

Admin accounts, source code, database and documentation all handed over to you. Schedules and services are yours to edit from then on.

06 / FAQ

Common questions,answered directly

How much does a custom LINE booking system cost?

From NT$45,000, live in 3–4 weeks, including LINE Official Account setup, booking flow, reminder push and admin panel.

The final quote depends on the number of services, staff and venues, and whether existing systems need connecting. Once confirmed, the quote is the total — no hourly billing.

How is this different from a monthly system like HotCake or SimplyBook?

A monthly systemfits your flow into its framework; a custom buildshapes the system around your flow

If your flow is standard (pick a service, pick a time, confirm), a monthly system at a few hundred to a couple of thousand NT dollars is far better value — and we'll tell you to go use one. Custom pays off when your flow isn't standard, you need to connect existing systems, customer data has to stay in your hands, or five years of subscription fees already exceed a one-off build.

Do I need a website? Can I do LINE only?

LINE only is fine. The whole flow completes inside the chat — no jumping out to fill in a form.

If you want a website as well, both share the same booking data. Websites from NT$18,000, quoted on overall scope when built together.

If two customers pick the same slot at the same time, do both bookings go through?

No. Slots useatomic locking: the database locks the slot first and only the winner's booking is written in. The other customer is told on the spot that the slot has just been taken and picks again.

This is the most common failure in booking systems. You can verify the behaviour yourself on the FATE demo.

How does the LINE Official Account fee work?

That's paiddirectly to LINE and is separate from development. Official Accounts have a free plan; you only need to upgrade if outbound push exceeds the free allowance.

Replies to customer messages use the Reply API and don't count toward the push allowance — only reminder pushes do. The account is registered in your name; we don't hold it for you.

How soon can it go live? What do I need to prepare?

3–4 weeks. What you need to prepare: your services and how long each takes, opening hours and closing days, whether you want deposits, and how far in advance reminders should go out.

Missing materials are the most common cause of delay, not development speed. We'll give you a checklist at the first meeting.

Do I pay again to change the flow or add services later?

Adjustments within 30 days of launch aren't billed separately. After that, day-to-day content like services, slots and schedules isyours to edit in the admin panel— no need to come to us.

Changing the flow itself (adding a payment step, for example) counts as new development work.

Who holds the customers' booking data?

You do. Both the database and source code are handed over, so you can export at any time or switch maintainers. We don't hold your customer data for you.

07 / Reading

Before you decide,do the maths

Journalsatsumacreative.tw/blog ↗

LINE booking systems: monthly SaaS or custom build?

Same question, different answers — it comes down to how standard your flow is and whether the data has to stay with you.

  • Choosing
  • Five-year total
Journalsatsumacreative.tw/blog ↗

What does a custom LINE booking system cost?

Breaking down the quote: which parts you have to pay for, and which can wait.

  • Pricing
  • Pitfalls
Journalsatsumacreative.tw/blog ↗

How booking needs differ across clinics, beauty and restaurants

Same name, three completely different sets of requirements.

  • By industry
  • Requirements checklist

Talk to us for 30 minutes,
get a quote the same day.

DEMOLINE @832hjmkt (FATE Fortune Agency)
RESPONSE< 24h on weekdays