There is a strange optimism foreign teams bring to Japan. They have done well in their home market. They have done well in one or two adjacent markets. They assume Japan is the next square on the same board. It isn't. Japan is a board with different rules, and the consumers, retailers, and regulators have been playing on it longer than you have. The good news is that the rules are learnable, and the first 90 days set the trajectory for the next ten years.
What follows is the playbook we use, refined across 62 launches in Japan. It is not the only one that works. It is the one that works most often.
Day 0 to Day 14 — diagnose before you decide.
The most expensive mistake foreign brands make in Japan is committing to a channel mix before they have done diagnostic work in market. The second most expensive mistake is committing to a channel mix based on a syndicated report written in London. Both happen weekly.
The first two weeks of any sensible Japan launch are spent on three diagnostic streams running in parallel. Category demand reality — bottom-up modeled from marketplace search and retail audit data, not top-down from desk research. Regulatory pathway — what licenses, certifications, or registrations does your category require, and what is the realistic timeline for each. Channel architecture — for your category, what mix of marketplace, DTC, retail, and specialty channels actually drives volume.
Day 15 to Day 45 — architect the localization that matters.
Localization is one of those words that means everything and therefore nothing. The localization that matters in the first 60 days is not your tagline. It is the operational decisions that determine whether the customer ever encounters your brand in a useful state.
Pricing tiers calibrated against Japanese price-point expectations and competitor anchors, not converted from your home currency. Product naming that reads natively in katakana or kanji and isn't accidentally embarrassing. Packaging hierarchy that respects Japanese reading order and information density expectations. Claim adaptation — many home-market claims are simply illegal in Japan or require different substantiation. SKU rationalization — Japan is a market of curated assortments, not maximalist ones.
We have seen launches survive bad creative and even bad PR. We have not seen a launch survive a localization layer that signals to the consumer 'we did not respect this market enough to do the work.'
Day 46 to Day 75 — coordinate the channel apparatus.
By day 46, you should have your channel architecture decided and your localization layer in flight. The next month is where coordination matters more than ambition.
- Marketplace listings written by native copywriters with category fluency, not translated.
- DTC storefront live in Japanese with Japanese payment options at checkout — convenience-store payment, bank transfer, and at minimum the major credit and Japanese mobile-wallet rails.
- Retailer onboarding initiated with the two or three target accounts that fit the brand's tier, even if first orders don't ship for another quarter.
- PR pipeline seeded with three to five long-lead magazine and broadcast outlets so the launch isn't a press-release-and-pray exercise.
- Influencer and creator outreach began for paid and earned activation in launch week.
The brands that win Japan don't show up loudly in one place. They show up quietly, credibly, in three or four places at once. That coordination is operational work and it has to start six weeks before launch, not six days.
"Japan rewards brands that look like they have always been here. The first 90 days are about manufacturing that impression deliberately."
— Mei Nakamura, Director, Japan Strategy
Day 76 to Day 90 — launch in fortnight, not a moment.
We treat launch as a fortnight, not a day. Soft commerce go-live in the first week to validate operations and unit economics under real load. Coordinated marketing wave in the second week — paid media live, PR moment landing, creator content rolling, and retail presence visible if relevant.
By day 90, the launch is past its inflection. You either have signal that the proposition is working — measured by repeat order rate, search lift, organic earned coverage, and reorder velocity from retail accounts — or you have signal that something specific needs to be retuned. Either way, you have an evidence base for the next quarter.
What we don't do in the first 90 days.
We don't optimize. Optimization is a fourth-quarter activity. The first 90 days is about learning whether the proposition is fundamentally working in market — not whether your CPC is two yen lower than it could be. Brands that try to optimize too early miss the larger signals about category fit and channel sequencing.
We also don't expand. No second-market entries, no second-category extensions, no APAC sequels until Japan is past month nine and printing the metrics that justify investment elsewhere. Japan is the launch worth doing first, properly, with full attention.
The 90 days are not a script. They are a discipline. Most failed Japan launches we have inherited from other agencies skipped one of the four phases — usually diagnose or coordinate — because the founder was impatient or the agency was billing by deliverable. The launches that became category leaders did all four, in order, on time. There is no shortcut. There is only the work, done in the right sequence.
Deebo is an international expansion and cross-border ecommerce agency, headquartered in Tokyo, working with foreign brands across Japan, APAC, and 40+ markets worldwide.