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Agentic AI ERP for SMBs · Full source code included · Tailored to you

If it doesn't fit how you work,
change the ERP.

WhyWorks is an ERP and groupware suite that connects e-approvals, HR, attendance, payroll, accounting, sales, projects, and even company-domain email in one place.
You get a finished ERP plus its full source code, and a voice AI agent that links schedules, email, approvals, HR, and more, so the system can keep evolving the way your company works.

WhyWorks Agentic AI ERP unified workspace dashboard screen
Reasonable cost to adopt ERP + groupware in one Company-domain email Full source code included Voice AI assistant · Connected to ERP work No lock-in Web, desktop, and mobile
THE REAL PROBLEM

When your ERP stops fitting your company,
the spreadsheets come back.

It may fit well at first. But the moment your work changes, a gap opens between the system and reality.

“That's a shared feature, so we can't change it just for you.”
“That customization needs a separate development quote.”
“We'll review whether it can go into the next release.”
“For now, you'll need to use this screen the standard way.”

Eventually, your company starts bending to the system. Spreadsheets reopen, the same numbers get entered twice, and new work piles up outside the ERP.

The real question isn't how many features you have. It's whether the system can change when your work does.

With a shared SaaS ERP

  • You start fast, but it's hard to change it just for your company A shared service can't quickly take on each company's needs, and what can change depends on the service's policies.
  • Subscription costs rise with every user and service As users and services grow, your total subscription cost can grow with them.
  • Your options after canceling may be limited How data is moved, and whether you can keep using the system after the contract ends, depends on each service's policies.

With a custom-built ERP

  • It fits your company, but needs rework whenever your work changes Even a system built to spec needs ongoing improvement as your work and organization change.
  • Building from scratch costs a lot of money and time Analysis, design, development, and testing all start from zero, so the upfront burden can grow with your scope.
  • Every change takes development skills Even if you own the source, without in-house developers you'll need your original vendor or a new development partner.

Both approaches have clear trade-offs. WhyWorks aims to give you the fast start of a finished ERP and the freedom to change of a custom build.

A NEW KIND OF ERP

WhyWorks isn't a fixed ERP. It's an AI ERP you can keep changing.

A ready-to-use ERP for SMBs, delivered with full source code and the AI-assisted skills to customize it yourself.

A finished ERP

62 business modules, from e-approvals to payroll. Get started quickly without building from scratch.

+

Full source code

You get the complete backend and frontend source. Modify and extend it for your own business needs.

+

AI-assisted self-customization

We train your team on your actual codebase to modify, test, and deploy with AI coding tools.

= An ERP you don't build from scratch, and keep evolving to fit your company

AGENTIC AI · INSIDE ERP

Just speak. Your ERP connects and brings back the answer and the screen you need.

The Agentic AI ERP in WhyWorks isn't one more chatbot to open. ZOO, your work assistant, understands your voice and, within your permissions, connects ERP work across schedules, meetings, leave, deadlines, email, notifications, approvals, and employee information. It reads answers aloud and opens the screen you ask for.

01
Ask out loud“What's on my calendar today?” “Any unread email?” “Open e-approvals.”
02
ERP access within your permissionsLooks up schedules, meetings, leave, deadlines, email, notifications, approvals, and employee information together
03
Voice answers and screen navigationSpeaks the result and opens the ERP screen you need

Ask by voice, hear the answer

In-house speech recognition turns your request into text, and ZOO looks up the ERP data. The answer appears on screen, is read aloud in a natural voice, and you land on the menu you asked for.

Get straight to the work you need, without typing or digging through menus.

Pulls scattered work records together

It pulls tasks, deadlines, and amounts out of email, and turns Kanban, meeting, and schedule records into daily summaries and draft weekly reports.

Spend less time re-collecting data that's already been entered.

Reads business documents and cross-checks them

It finds requirements and terms in RFPs and checks proposals for gaps. It also does a first-pass review of contracts for unfavorable or missing clauses.

You check AI drafts against their supporting sentences, and a person makes the call.

Searches by meaning, not just keywords

Search “annual leave carryover” and it also finds “Can I roll over my unused vacation days?” Ask about company policy in plain language, and every answer comes with the source text.

The source documents appear alongside, so you can verify.

Turns paper and voice into business data

OCR fills in the fields from receipts and business cards. Voice memos keep the original recording and transcript together in your personal file library.

However it's entered, it becomes one continuous record in WhyWorks.

Runs in Korean and English at the same time

AI fills in English translations for newly added screen text in batches. AI writes the draft, and people review it.

With international staff or overseas entities, everyone works from the same screen.

Sensitive business data stays with your in-house AI

AI work on sensitive source material like email, contracts, RFPs, and payroll is processed by a local LLM and isn't sent to external generative AI APIs.

Local model features run with no external API usage fees. You do need to account separately for the cost of building and operating your own AI server.

If the AI server goes down, core ERP functions keep working. The optional cloud chat AI and external web search are covered by separate transmission and security policies.

Note: Contract review results are draft reference material and do not replace legal advice. AI features require a separate GPU server, and the setup varies by service model.

PRODUCT WALKTHROUGH

ERP, groupware, and in-house AI connected in one workflow

62 business modules across e-approvals, HR, attendance, payroll, accounting, sales, projects, and collaboration, connected in one AI ERP to cut double entry and tool switching.

Your personalized work dashboard Workspace

As soon as you log in, see documents awaiting approval, notifications, schedules, and team workloads at a glance, with today's AI summary surfacing what matters first. Admins can change screen text and menus right from the admin console.

  • Today's AI summary and a one-stop approval inbox Summarizes announcements, schedules, and work activity, and shows approvals assigned to you
  • Team workload view See who's busy on one screen and rebalance work
Workspace dashboard screen

To-dos · Schedules · Work reports My Work

See work status visually with a calendar and Kanban board, and change priorities with a simple drag. AI drafts your weekly report, and voice memos keep the recording and transcript together.

  • A calendar that pulls scattered schedules together when you open it Meetings, approved leave, task deadlines, project milestones, and birthdays, all on one screen
  • Unified inbox & AI task extraction Use company-domain and external email accounts in one inbox, and extract tasks from message bodies automatically
Calendar screen

Communication channels and internal knowledge base Comm.

Real-time chat, announcements, a file library, and polls, plus an AI assistant that joins your chat rooms. Company policies and manuals are searchable by meaning.

  • Real-time chat with AI in the room Ask questions right in the chat room, with web search for answers when needed
  • Knowledge search that shows its sources Ask about company policy in plain language and check the source document alongside the answer
Communication board screen

Face-recognition attendance that cuts buddy punching Attendance

Instead of methods that make buddy punching easy, WhyWorks uses ArcFace face authentication. No cards or fingerprint terminals. A single webcam is all you need.

  • Embedding-based deep learning face authentication Matches against registered faces to clock people in automatically, with an adjustable recognition threshold
  • Check-in options to fit your environment Choose from a dedicated face-recognition device, QR code scanning, or web check-in, and run them side by side
Attendance management screen

AI receipt OCR expense reporting Expense

Snap a receipt and AI reads the text and fills in the expense claim automatically. Text recognition and vision reading are cross-checked to reduce misreads.

  • Receipt text recognition (OCR) + AI cross-checking Auto-fills subtotal, tax, merchant, and date and time to prevent manual entry errors
  • Corporate card sync & e-approval submission Links card transactions and runs the entire expense approval through your approval line
Expense OCR screen

Effort and real-time profitability PMS

Manage everything in one flow, from RFPs and proposals at the bid stage to schedules, deliverables, effort, and profitability during delivery. AI organizes and compares documents first, while your project lead decides the standards and what gets applied.

  • Profitability analysis by project Combines expenses and actual person-hours so you can see margin and profit and loss in real time
  • RFP · Proposal · Tailoring, connected Checks proposal answers against requirements and links them to project phases, deliverables, and schedules
Project management screen connecting RFPs and proposals through delivery

Payroll calculation and pay stub automation Payroll

Supports payroll calculation based on wage terms in employment contracts and actual attendance records, through to generating and sending pay stubs. Contracts can be signed electronically.

  • E-signatures by link, no login needed The other party signs through a link without an account, and the completed PDF is stored as is
  • Automatic pay stubs · Scheduled delivery Generates pay stub PDFs for payday and schedules them to go out by email
Payroll management screen

Annual leave policies and org structure HR

Supports annual leave management based on your configured policies and each hire date, with an intuitive way to manage your department hierarchy. Permissions are controlled by role, down to the menu level.

  • Automatic annual leave grants and usage history See each person's accrued annual leave by hire date and approved usage at a glance
  • Menu-level RBAC permission control Separates read, write, and delete permissions by role to keep HR data from being exposed
Org chart screen
Considering WhyWorks from outside Korea?The product UI currently supports Korean and English, and speech recognition is also based on Korean and English. Payroll and tax forms follow South Korean law, so if you plan to use WhyWorks in another country, we'll confirm the scope you need during a consultation.
COMPANY DOMAIN MAIL

Employee email on your own domain.
The mail server is built into WhyWorks.

No separate mail hosting contract needed. Register an employee and a name@your-company-domain mailbox is created right away, so company email is sent and received inside the ERP. Email sent from ERP screens, like quotes, goes out from the same company address.

  • Registering an employee creates their mailbox

    Their ID becomes their company email address. They can log in with either the ID or the email address.

  • Company email and your existing email in one inbox

    Connect existing external accounts (IMAP, POP3) to receive everything together, and send from the primary address you choose.

  • Built to reach the recipient's inbox

    A mail server with SPF, DKIM, and DMARC sender authentication is installed along with WhyWorks.

Stops viruses and spam at the door

Includes virus scanning, executable attachment blocking, a spam filter, and a spam folder. Admins can block senders reported by employees across the whole company.

A threat one person catches is blocked for everyone.

Send large files as they are

If attachments exceed the mail limit, only the files over the limit become 7-day download links added to the message. Scheduled sending and read receipts work too.

No more email bounced for being too large.

AI inside your email

It flags suspected phishing, writes summaries, translations, and draft replies, and pulls out tasks, deadlines, and amounts into draft work cards.

Email content is processed by your in-house local LLM and isn't sent to external AI.

Note: Receiving email on your company domain requires DNS (MX, SPF, DKIM) setup for that domain, and we'll guide you through it during adoption. Attachment limits and link retention periods can be adjusted for your environment.

HOW FAR YOU CAN GO

Settings first. Development when needed. Your own team later.

Handle frequent changes in the admin console, company-specific processes in the source code, and recurring improvements in-house.

Level 1 Zero code · Through settings

Change it right away, no development needed

Rename “Vendor” to “Client” or “Approval” to “Sign-off.” Edit the key text on any screen right from the admin console, with no developer and no redeployment. The same goes for menus and permissions.

Edit text on every screen Build the menu tree Role-based access (RBAC) Set approval lines Leave policies Korean/English switching Dark mode
Level 2 Source changes · When you need them

Add the features your company needs

Fields unique to your industry, your own formulas, integrations with existing systems: company-specific requirements can go in at the source level.

Add screens and fields Change calculation logic Integrate external systems Report formats Redesign workflows Change PDF templates
Level 3 After training · Ongoing

Make improvements in-house when you want to

Practice making changes with AI coding tools on your actual codebase. If you have in-house IT staff, this gives them the foundation to handle recurring improvements themselves.

Hands-on AI coding Done on your own code Deployment handover Remote coaching afterward
SERVICE MODELS

Three ways to run it. The choice is yours.

The product stays the same. What differs is who runs it and who improves it. Pick the model that fits your IT capabilities and security policies.

Model 01 · Self

Self-run

Run it yourself on your own servers

  • Installed directly on your servers (on-premises or your own cloud)
  • Full source code included
  • AI-assisted self-customization training so you can make improvements in-house
  • Installation and initial setup support, then remote coaching
  • Keep direct control of your data and systems in your own environment
Best for companies with in-house IT or developers, or those whose rules require keeping data on site
Model 03 · Managed

Fully managed

Hand off operations and focus on your business

  • Installation, operations, changes, and updates: WhyZOO handles it all
  • Dedicated contact and customization on request
  • Regular check-ins and process improvement suggestions
  • Source code delivered whenever you ask
  • Switch to Self-run or Co-managed whenever you want
Best for companies without dedicated IT staff that want to hand off both operations and improvements
Included in every model Full source code included No lock-in · Move anytime Switch freely between models Ongoing core updates

Cost depends on your company size, service model, and customization scope. We review your environment and needs, then give you an exact figure in a consultation.
You can modify and extend the source code without limit for your own business use. Only resale and redistribution to third parties are restricted.

OUR PROMISE

Two promises that keep your company in control of its system

What matters more than feature count is whether you still have choices and room to grow after you adopt.

Promise 01 · No Lock-in

The choice of how to operate stays with you

With the full source and your data, you can choose to run independently even after your contract ends. Switch to Self-run or work with a different operations partner.

“The reason you stay should be the product and service, not the contract.”

Customers should be able to choose how they operate, not be tied to a single provider. WhyWorks aims to be the product you keep choosing over the long term.

Promise 02 · Co-evolution

It's yours alone, and the core keeps advancing

Custom systems offer freedom but often lose their update path. WhyWorks is designed to carry both company-specific customization and shared core updates.

“Customer improvements advance the core,
and core advances flow back to customers.”

We take the best improvements customers build, bring them into the core, and ship them to every customer. If your improvement is adopted into the core, we reduce your maintenance fees. Every fix makes things better for everyone.

PROCESS

Use it first, then fix what matters

You see what needs to change best when it's applied to real work. Start with a finished system and build in feedback from real use.

01

Assessment & contract

We assess your work environment and requirements and choose the right service model together

02

Installation & live use (1 month)

Install right away and use it for real work for a month. You only find the rough spots by using it

03

Feedback & AI customization

We use AI to quickly apply the collected requests, then roll out the official release

04

AI-assisted self-customization training

Practice modifying, testing, and deploying on your actual codebase to build in-house improvement skills

05

Operations & continuous improvement

Run it yourself or keep improving the system with WhyZOO

Maintenance contract benefits: Annual core feature upgrades, plus ongoing updates to tax and labor forms and auto-calculation data
DEMO EXPERIENCE

A demo beats an explanation. See for yourself.

No sales calls and no approval process. Use the public demo account to try the main features of WhyWorks yourself.

Access URL demo.whyworks.kr
Demo ID demo@whyzoo.com
Password demo2288
Open the demo system Note: With a camera connected, you can also try face-recognition check-in and receipt upload right away.
GET STARTED

The ERP that fits your company
is the one you shape yourself.

Start with a finished system, change only what you need, and let the ERP evolve as your work does. See the demo first, then decide together on the operating model and customization scope that fit your company.