The 60 Approval Workflows a Manufacturer Runs, and the ROI of Moving Them Into One ERP

Monday morning, eight o'clock. On a desk in Shizuoka sit three folders waiting for a stamp. One holds a 30-million-yen purchase order for a new machining center. One holds a sales quotation blocked behind three signatures because the margin dropped to 14 percent. One holds a stack of receipts from last week's client visits. The plant manager who must sign the first is on a train. The executive who must countersign the second is overseas. The receipts are missing one taxi fare no one can find. None of these requests move until a person, a stamp, or a piece of paper arrives.

Beneath every mid-size factory in Japan runs an invisible approval machine. A manufacturer with 200 to 400 staff typically runs about 60 distinct approval workflows, from capital expenditure down to a single overtime shift. Most of them still live on paper, the hanko stamp, and email. This post is a complete catalog of those workflows, what each one costs on paper, and what changes when you move all of them into one core business system.

The Hidden Cost of Paper Approvals

Paper approvals look free because no one budgets for them. They are not free. The numbers from independent Japanese surveys are sobering.

According to a 2024 TOKIUM survey, 90.4 percent of employees still submit expense claims by physically bringing paper receipts to the office, and the full electronic rate for expense processing sits at only 7.0 percent. An atled survey found that 31.4 percent of companies were still running ringi (internal approval proposals) on paper even at the height of remote-work mandates. On the upside, when companies do digitize, the savings are large and fast. The Rakuraku Seisan case cut expense processing from roughly 3 hours per batch down to 30 minutes. The Asahi Drinks case shortened ringi decision time by 7 days and eliminated about 4,000 hours of administrative work.

Each of those benchmarks is a sourced figure, not an estimate. Read together they describe a single pattern: the paper approval is the single biggest avoidable cost hiding inside a mid-size Japanese manufacturer.

The Catalog: 60 Workflows Across 9 Departments

This is the core of the post. Below is the full operational surface of a 200-to-400-person manufacturer, grouped by department. Each line names a workflow that runs today on paper, the hanko stamp, or email. The point of listing all of them is simple: every one is a digitization opportunity with measurable ROI.

A. Executive and Ringi

Capital expenditure (CAPEX) approval, for example a new 30-million-yen machine, requiring board sign-off.
Real estate acquisition or lease, for example renting the lot next to the factory.
Mergers, acquisitions, and capital tie-ups, for example taking a stake in a subcontractor.
New business entry or market exit.
Organizational restructuring and department consolidation.
Large donations and industry-association sponsorship.
Executive appointments and compensation.

B. Sales

Quotation approval (new and revised), for example a 5-million-yen quote to a new customer.
Standard price and price-list changes.
Special customer-by-customer pricing.
Discount and markdown approval when margin falls below a threshold.
New customer master creation.
Credit-limit setting and credit-limit overrun.
Order change and cancellation.
Complaints, returns, and markdowns (RMA).
Bad-debt provisioning and receivable write-off.

C. Purchasing

Purchase requisition to purchase order approval, where amounts above 1 million yen escalate to a department head and above 5 million yen escalate to an executive.
New vendor registration, requiring parallel review by credit, legal, and information-systems teams.
Substitute-part adoption and specification change.
Master trading, maintenance, and lease contracts.
Advance payment and payment-term changes.
Outsourcing and consignment orders.

D. Production

Manufacturing order creation and change, for monthly production planning.
Bill-of-materials change and engineering change order (ECO).
Setup changeover and production-plan revision.
Lot splitting and reorganization.
Equipment maintenance and repair planning.

E. Quality and Inventory

Defect and scrap disposal, which touches both inventory and accounting.
Valuation write-down and inventory obsolescence.
Stock-take variance and inventory adjustment.
High-value inter-site inventory transfer.
Shipment hold, release, and expedited shipment.
Recall and lot-traceability scope confirmation.

F. Finance

Expense reimbursement (travel, entertainment, transport), the single highest-volume workflow.
Advance payment application.
Sales invoice (receivable) issuance and correction.
Payment execution (payable) approval at month-end.
Journal entry correction and amendment.
Budget setting, budget overrun, and budget change.
Month-end close and period-end close.
Fixed-asset acquisition, disposal, and depreciation change.
Tax filing, consumption tax, and statutory reports.
Reserves and accrued-basis posting.

G. Human Resources

Hiring, offer, and employment-type change.
Transfer, promotion, demotion, and concurrent posts.
Salary, bonus, and allowance changes.
Paid-leave and special-leave applications.
Overtime, holiday work, and shift changes.
Business trip pre-application and post-settlement.
Time-clock punch correction.
Retirement and offboarding, including account recovery.
Performance evaluation and grade determination.

H. IT and Security

Account provisioning and permission grants.
Permission changes and privilege escalation.
Data export and external transmission.
New system or SaaS adoption approval, to prevent shadow IT.
Security incident response.

I. Legal and Compliance

Contract review, execution, and renewal.
Internal-regulation and ringi-regulation revision.
Personal-information and confidential-information handling approval.

Sixty workflows across nine departments is the real operational surface of a mid-size manufacturer. Few companies have digitized even half of them today. Roughly 40 percent of companies that do adopt a workflow tool stall at merely electronifying the paper ringi form, never reaching the deeper gains.

What Changes in One Core Business System

The point of moving these workflows into one core business system is not to scan paper faster. It is to change the outcomes of approval itself.

Every request type, whether a quotation or a leave application or a capital expenditure, gets its own purpose-built form, configured by a business user with no developer involved. Approvals route to the role or the position, not to the person, so a reorganization or a retirement never breaks a route and a request never lands on someone who has left. Large spend can require committee sign-off, where three of five executives must approve before the request advances, which removes single-person concentration-of-authority risk.

You can see, in real time, exactly where every request is stuck and who the bottleneck approver is. When a manager travels or takes leave, a delegated approver can step in, and the chain of custody stays intact for audit. Approvals do not freeze because someone is on a Shinkansen.

Two boundaries matter for honesty. The engine supports all 60 of these workflows as digital approval flows today. Automatic write-back of the approved result into an ERP record is built for exactly two: expense reimbursement and leave applications. For purchase orders, journal entries, vendors, bills, budgets, fixed assets, lots, and bills of materials, the approval flow is built and the automatic record creation is on the roadmap.

A Scenario: A Precision Parts Maker in Shizuoka

Consider a precision parts manufacturer in Shizuoka, about 280 staff, supplying automotive and industrial-machinery OEMs. Revenue sits near 9.8 billion yen a year. The head office is in Tokyo, the plant is in Shizuoka, and a small sales office serves customers directly.

Before the change, the company ran on paper and the hanko stamp. The accounting team of fourteen worked late every month-end reconciling receipts and re-keying figures. Ringi on a new machine stalled for a week when an executive was abroad. Lost receipts cost the company input-tax credits it could never recover. No one could name the bottleneck approver in any chain, and approval records from prior years simply did not exist when an auditor asked.

After moving the catalog into one ERP, the picture changed. The accounting team stopped overtime at month-end because expense reimbursement now flows from claim to approval to posting in a single system, with receipts attached before submission. Capital expenditure requests move in days instead of weeks because approvals route to the role, and a delegated executive can decide when the primary is traveling. Decision time on ringi fell by roughly 7 days per request, mirroring the Asahi Drinks benchmark. The company recovered thousands of hours per year and eliminated paper from the highest-volume flows. Risk dropped too, because every approval now leaves a tamper-evident audit record and the company can finally answer who approved what and when.

ROI in Real Numbers

The catalog uses a transparent model. For each workflow, take the time saved per request, multiply by the annual volume, and multiply by a loaded back-office labor rate of 3,000 yen per hour, then add the cost and risk reductions that are harder to quantify.

Applying that model to a 280-person manufacturer, the high-volume tier alone yields about 6,800 hours and roughly 18 to 25 million yen per year. The biggest single contributor is moving all paper ringi to digital, which conservatively saves about 2,500 hours and 7.5 million yen a year, with the Asahi Drinks case showing the upside ceiling is far higher. Expense reimbursement contributes about 850 hours and 2.6 million yen. Purchase orders contribute about 1,130 hours and 3.4 million yen. Leave applications, business trips, account provisioning, invoicing, and payment execution round out the rest.

These figures are illustrative, anchored to the sourced benchmarks above. Swap in your real volumes and your real labor rate and the model gives you a defensible number for your own company. The risk reductions, such as preventing double payment, stopping ghost vendors, and blocking unauthorized discounts, are where the larger but harder-to-quantify value sits.

Why This Matters for Japanese Manufacturers Now

Three forces are converging in 2025 and 2026.

First, the 2025 legacy cliff. The long-standing warning about aging systems and aging expertise is arriving, and manufacturers and service industries are the most exposed. Paper processes carried in the heads of retiring veterans retire with them.

Second, the labor shortage. According to the 2025 Communications White Paper, 48.7 percent of Japanese companies cite the talent shortage as the top barrier to digital transformation. The same shortage is the reason to automate, because the work that once took a back-office team now has to be done by fewer people.

Third, the compliance bar is rising. The qualified-invoice system is now live and demands searchable, tamper-resistant digital records. J-SOX and internal-control audits expect a clear approval trail, segregation of duties, and evidence that the rules were actually followed. A paper approval slip in a cabinet cannot defend any of that.

Is This Right for Your Business?

This catalog fits if any of these sound familiar:

Your finance team works overtime at every month-end and the cause is paperwork, not analysis.
A decision on a large purchase stalls for a week whenever an executive travels.
You cannot answer, quickly, who approved a given payment or quotation last quarter.
You run 200 to 400 staff across multiple sites and at least three departments still depend on paper approvals.
You face a J-SOX or internal-control review in the next 12 months and your approval evidence is paper.

Common Questions

What is the risk of switching away from paper approvals?

The risk is lower than staying. A good core business system runs the approval workflow standalone first, with no dependency on the rest of your records, so you can prove the ROI on the two or three highest-volume flows before you connect anything else. You migrate open requests before go-live, and the audit trail from day one is stronger than any paper slip ever was.

How do we justify the cost?

Use the catalog's own model against your real volumes. For most 280-person manufacturers the conservative figure lands between 18 and 25 million yen per year on the time-cost line alone, before counting the larger risk reductions from prevented errors and fraud. The question is rarely whether the ROI exists. It is how quickly you want to capture it.

We already have a partial system. Can we migrate?

Yes. The catalog is modular. You can start with expense reimbursement and leave applications, which are the highest volume and lowest complexity, then expand to purchasing, then ringi, then the governance layer. You do not have to digitize all 60 in one project.

Key Takeaway

A mid-size manufacturer does not have 60 separate approval problems. It has one approval engine still running on paper. Moving all 60 workflows into one ERP turns that engine from a hidden cost into a controlled, visible, auditable advantage.

Get Started With Kikan System

If your factory runs on the hanko stamp and the inbox, look at Kikan System. The approval workflows, expense reimbursement, leave applications, purchase orders, inventory with lots, and bill-of-materials modules are built to run the full catalog above in one place. You can start on the free plan with up to 2 users, no credit card required. Begin at /#get-started.