Six Protocols of Japanese B2B That Don't Show Up in Your Playbook

Every market has friction. Japan has architecture.

Friction can be pushed through. Architecture has to be understood.

I write this as someone who has spent years on both sides of this border, helping foreign companies enter Japan and Japanese companies reach outward. What I see foreign entrants struggle with is rarely language, and rarely "culture" in the vague sense. It is a set of concrete structures that govern how Japanese companies buy, approve, and pay. We who work inside these structures rarely think to explain them, because to us they are simply how business is done.

These patterns are strongest in large, established enterprises, but they shape much of the wider market as well. None of them are secrets. Yet most remain invisible until you run into them.

1. Ringi

稟議 / circulation-based approval

In many Japanese companies, a purchase is not decided in a meeting. It is decided in a document. We call it a ringi-sho: a written proposal that travels through the relevant departments, and each department adds its approval. In the past this approval took the form of a personal seal pressed onto the paper, and in some companies it still does.

There is usually an executive sponsor. But foreign sales teams often assume this person can simply say yes, and that assumption is wrong. In the ringi system, no single person says yes. The approval is built up, department by department, until the decision exists. If your sales method depends on finding "the decision maker," you will spend a long time looking for someone who does not exist in that form.

2. Nemawashi

根回し / pre-wiring the decision

In Japan, the real alignment happens before the meeting. The formal meeting confirms what has already been discussed, person by person, in advance. We call this nemawashi.

To be fair, every organization in the world does some version of this. Management consultants even have a name for it: pre-wiring a meeting. The difference is that in Japan, nemawashi is not a tactic used by ambitious individuals. It is the process itself. A proposal that arrives at a meeting without it looks unprepared, not efficient.

This is why foreign teams sometimes misread a quiet meeting as a stalled deal. The meeting is quiet because the work was done somewhere else.

3. Torihiki jisseki

取引実績 / proven local track record

Japanese buyers will ask which companies you already serve in Japan. A list of global Fortune 500 customers helps, but it does not substitute for one recognizable Japanese customer.

We have an expression for this caution: nobody wants to be first into the bath (一番風呂). Everyone prefers that someone else test the water. The buyer is not really asking whether your product is good. The buyer is asking who has already used it and survived.

For a foreign entrant, this means the single hardest task in Japan is creating the first case. It takes longer, costs more, and demands more concessions than any deal that follows. It is still worth it. The first landmark deal is not priced for its revenue. It is priced for the credibility that wins every deal after it.

4. Shōryū

商流 / commercial route to market

Japanese companies tend to buy from the vendors they already have, not from the open market. The trading company they have always used. The office equipment dealer that has served them for decades. The IT reseller that handles everything from PCs and printers to software licenses and support.

So the buyer's question is often not "which product is best." It is "can our usual vendor supply, contract, invoice, and support it." We call this route the shōryū, the commercial flow, and if you are not inside someone's flow, you may not be inside the deal at all, regardless of how strong the product is.

Product-market fit alone is not enough here. You also need channel fit.

5. Marunage

丸投げ / full delegation to the vendor

Self-service does not sell in Japan. Often the opposite is expected.

Most global SaaS models assume the customer will read the documentation, configure the product, and open a ticket when something breaks. Japanese enterprise buyers often expect the vendor to take over large parts of the work entirely. We call this marunage, literally "throwing the whole thing over," and the word is critical even in Japanese. I will be honest: it is one of our less admirable business habits. But it is real, and you need to plan for it.

The risk grows when it combines with ambiguity. Japanese projects often start with requirements left loose, on the assumption that details will be worked out as the relationship deepens. A foreign vendor reads the contract. A Japanese customer reads the relationship. When a vendor discovers mid-project that "the rest" was silently assumed to be their responsibility, the gap can widen fast. In the worst cases, even global companies have ended up in years of litigation over exactly this space between a vague specification and an assumed obligation.

The way through is not to demand complete Western-style specifications on day one. That will not work either. The way through is to read the ambiguity, surface the hidden assumptions early, and lead the customer, patiently and continuously, toward a shared definition of scope. In Japan, that guidance is not overhead. It is part of what the customer is buying.

Of the six protocols here, treat this one with the most care.

6. Shiharai saito

支払サイト / payment cycle

Paying later against an invoice is not the Japanese part. Net 30 exists everywhere. The structure is the Japanese part.

Japanese B2B runs on batch settlement. All transactions within a month are consolidated at a cut-off date, and paid together, by bank transfer, on a fixed calendar date. The standard pattern is "close at month-end, pay at the end of the following month" (月末締め翌月末払い). Terms run from the batch, not from each invoice, so the effective cycle stretches from 30 to 60 days, and in some industries the legacy of promissory notes stretches it further.

Note also that payment means bank transfer. Corporate credit cards are rarely accepted between companies, and a self-serve card checkout even more rarely. If your billing system cannot issue one consolidated monthly invoice and receive a wire transfer, it will need rework before it works here.

New counterparties also face credit checks, and a foreign entity with no Japanese financial history requires extra scrutiny. Your CFO will see a working-capital problem. Your Japanese counterpart sees a normal procedure for establishing that you are reliable.

Japan Is Not Closed. It Is Specified.

The companies that succeed here do not treat these protocols as irrational obstacles to route around. They treat them as the operating environment, and they build for it.

I do not defend everything on this list. Some of it, we Japanese should reform ourselves. But reform is slow, and your market entry is now. Understand the architecture as it stands, and it will carry you further than any playbook written for a different machine.

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If you are planning an entry into Japan, our Japan Bridge practice works on exactly these problems.