Amazon.co.jp account management
Seller Central run day to day: catalog, pricing, account health, cases with Seller Support and weekly priorities agreed with your team.
White-label for agencies · Amazon JapanWhite-label Amazon agency Japan
White-label Amazon agency Japan
for agencies
CommerceKind is a white-label Amazon agency for agencies with clients selling on, or launching on, Amazon.co.jp. Our in-house team runs the account under your agency’s brand: Seller Central management, listings localised for Japanese shoppers rather than machine-translated, Sponsored Products, Sponsored Brands and Sponsored Display with budgets in JPY, FBA Japan stock planning for Prime Day, the autumn and year-end sales and the New Year, account health, importer and product-rule coordination and Japanese-language customer service, with reports carrying your logo. We sign an NDA and non-solicit first, work in your Slack and never contact your clients. The same team can run the client’s Amazon US, UK, Europe or other marketplaces.
Book a strategy call ★ Trustpilot 4.4/5 · $100M+ revenue for client brands · 60+ brands managedAt a glance
- Who it’s for
US, UK, European, Gulf and Asia-Pacific agencies whose clients want to add Amazon.co.jp, and agencies in Japan whose clients want to sell abroad. - How we work
NDA and non-solicit first, then your branding, your Slack and reports with your logo in JPY or USD. - Proof
$100M+ client revenue · 60+ brands managed in-house · $3M+ monthly ad spend
What we run for your Amazon Japan clients, under your brand
Japanese listings
Titles, bullets, images and A+ Content localised for Japanese shoppers from Amazon.co.jp search data, with the detailed specifications, sizes and care information buyers there expect.
Amazon Ads in JPY
Sponsored Products, Sponsored Brands and Sponsored Display with bids set from each product’s margin after consumption tax and fees, from a team managing $3M+ in monthly ad spend.
FBA Japan and season planning
Stock and budgets planned for Prime Day, Prime Big Deal Days, the late-year sales and the New Year sale, with shipping lead times from the client’s factory or warehouse built in.
Importer and product-rule coordination
Importer of record, consumption tax registration and category rules such as PSE for electrical goods checked with the client’s importer and advisers before stock ships.
Customer service and white-label reporting
Buyer messages, returns and reviews handled in Japanese, and weekly and monthly reports in your agency’s branding and currency.
Three ways to partner with us
| White-label | Referral partnership | Co-management | |
|---|---|---|---|
| Who faces the client | Your agency, as if we were your team | CommerceKind, after your introduction | Both, with roles agreed up front |
| Branding on reports | Your logo and colours | CommerceKind | Agreed per client |
| Who does the day-to-day work | Our in-house team, under your brand | Our in-house team | Shared between your team and ours |
| How you earn | You set the client price and keep the margin | 10% recurring commission | Agreed per client |
| Best for | Agencies that want to sell the service as their own | Agencies that want to refer, not deliver | Agencies with some in-house skills who want backup |
How a white-label Amazon Japan partnership starts
01
Partner call and NDA
We learn how your agency sells and reports, then sign an NDA and non-solicit.
02
White-labeled market check
We review the client’s products, Amazon.co.jp competition, import route and product rules and hand you an entry or growth plan under your brand.
03
Set-up
Seller Central access through Amazon’s own permissions, your Slack, reporting format and approval rules agreed.
04
Run and report
Our team runs the account day to day, with weekly updates and monthly reports carrying your logo.
$100M+
revenue generated for client brands
60+
brands managed in-house
$3M+
monthly ad spend managed
4.4/5
on Trustpilot (13 reviews)
What a white-label Amazon agency for Japan does
Japan is one of Amazon’s largest marketplaces, and clients who already sell on Amazon US or Europe often ask their agency about it next. Few agencies have a team that knows Amazon.co.jp search, Japanese listing standards, the import route and the local sale calendar. A white-label partner does that work inside each client’s account while your agency stays the only name the client sees. Our model is the same one behind our white-label Amazon account management, adapted for Japanese shoppers, Japanese search and JPY.
Japanese shoppers expect a different listing
A listing translated word for word from English rarely performs well on Amazon.co.jp. Japanese shoppers read detailed specifications, exact sizes and materials, care and safety information and reviews closely, and expect fast, reliable delivery and careful packaging. We research keywords in Amazon.co.jp search data, including the katakana and kanji forms buyers really type, and localise titles, bullets, images and A+ Content for Japanese buyers rather than relying on machine translation. Prices are set from each product’s fees, consumption tax, shipping and margin.
Importer of record, tax and product rules, coordinated not guessed
Brands based outside Japan usually need an importer of record to bring stock into the country for FBA, and sellers above the threshold need to register for Japanese consumption tax. Some products have their own rules: many electrical products need PSE marking, radio products such as Bluetooth devices need Japanese radio certification, cosmetics need a licensed marketing authorisation holder, and food and supplements fall under Japan’s food and health rules. Amazon.co.jp may ask for documents before a listing goes live. We check what Amazon asks for, prepare the documents the client already holds and work with the client’s importer, customs broker and advisers on anything new; we are not legal, tax or regulatory advisers. Our white-label Amazon compliance team handles account health and policy warnings under your brand.
Amazon Ads for Japan, set from margin
We run Sponsored Products, Sponsored Brands and Sponsored Display for Japan clients with bids and budgets set from contribution margin, not a blanket ACoS target. Japanese and English-language searches are split where both matter, branded terms are defended and budgets are paced for Prime Day, Prime Big Deal Days, the late-year sale and the New Year sale, when demand and competition peak. In one account, a rebuilt campaign structure turned 54% more ad spend into 117% more ad revenue at a lower ACoS: see the PPC scaling case study. See also our white-label Amazon PPC. Results depend on product, margin and category, and we share a plan after reviewing each client.
Stock, seasons and FBA Japan
Shipping to Japan takes time, so stock is planned further ahead than for a domestic marketplace. We forecast FBA Japan inventory from the client’s other marketplaces and Amazon.co.jp search demand, plan shipments around customs and the importer’s lead times, and time stock for Prime Day in summer, the autumn deals, the late-year sales, year-end gifting and the New Year sale in early January, as well as Golden Week in spring. Slow stock is moved before storage fees rise.
One team for Japan and every other Amazon marketplace
CommerceKind covers every Amazon marketplace, so a client can run Amazon US, Canada, the UK, Europe, the Gulf and Japan with one team under your agency’s name: see our white-label Amazon international expansion, white-label Amazon agency UK and white-label Amazon agency UAE pages. Brand owners can read our Amazon international expansion agency page. As an Official TikTok Shop Partner with a 10K+ creator network we also run TikTok Shop under your brand in the US and UK: see our white-label TikTok Shop agency.
How to choose a white-label partner
Before you hand a partner a client, ask six questions. Is the team in-house or freelance? Will they sign an NDA and a non-solicit? Do reports and audits go out under your brand? Do they work in your Slack or project tool? Is access granted through platform permissions rather than shared passwords? And can you start with one client without a long contract? We answer yes to every one: our team is in-house, we work in your Slack or ClickUp, and every report and audit carries your logo. See how to choose the best white-label Amazon agency for a fuller checklist.
Why agencies choose CommerceKind
CommerceKind has helped generate $100M+ in revenue for client brands, manages 60+ brands in-house and $3M+ in monthly ad spend, is an Official TikTok Shop Partner with a 10K+ creator network, and is rated 4.4/5 on Trustpilot from 13 reviews.
White-label Amazon international expansion White-label Amazon account management White-label Amazon agency UK White-label Amazon agency UAE White-label Amazon Europe marketplace management Amazon international expansion agency For agencies Agency partnership program White-label Amazon PPC How to choose a white-label Amazon agency Contact us
Brands that work with us
A few of the 60+ brands CommerceKind works with.
Verified Client Case Studies · Real Dashboards
See the numbers behind our client turnarounds.
Every case study below comes directly from unedited Seller Central, Amazon Ads, Search Query Performance, Sellerboard, TikTok Shop, and Walmart Connect dashboards.
+102% Ad Sales · −53% ACOSPrivate Label · Full Account Turnaround
Listing-first PPC turnaround: sales doubled, ACOS cut in half
Redesigned the main image for click-through, rewrote listing copy and A+ Content to convert, then rebuilt Sponsored Products and daily bid management.
Ad Sales$14,304 → $28,911+102%
Orders798 → 1,646+106%
ROAS3.99 → 8.48+112%
ACOS25.08% → 11.79%−53%
+117% Ad Sales · −29% ACOSPrivate Label · PPC Scale & Efficiency
Scaling PPC without ACOS spikes: 117% more revenue at lower ACOS
Rebuilt campaign hierarchy and segmentation with disciplined bid rules and A+ Content so 54% more ad spend produced 117% more ad revenue.
Ad Sales$19,680 → $42,712+117%
ACOS34.03% → 24.10%−29%
ROAS2.94 → 4.15+41%
Ad Spend$6,697 → $10,294+54%
+126% Ad Sales · −40% ACOSPrivate Label · 30-Day Turnaround
One-month PPC turnaround: sales up 126%, ACOS nearly halved
Tightened listing copy and imagery in week one, cut wasted spend across unprofitable targets, and set SKU-level ACOS goals with daily bid adjustments.
Ad Sales$15,170 → $34,257+126%
Orders553 → 1,233+123%
ROAS3.62 → 6.01+66%
ACOS27.64% → 16.65%−40%
+144% Ad Sales · +141% OrdersHealth & Wellness · Rapid Volume Scale
Health & wellness brand: 2.4× sales volume while holding ROAS steady
Mapped untapped high-intent keyword pockets and expanded placement coverage while upgrading creative so sales jumped from $38K to $93K at stable ROAS.
Ad Sales$38,207 → $93,266+144%
Orders1,545 → 3,719+141%
ROAS2.55 → 2.60Held
ACOS39.19% → 38.48%Held
+118% Click Share · +106% ClicksHealth & Wellness · SQP & CTR Growth
Keyword click share more than doubled in a declining search market
Diagnosed Search Query Performance funnel drop-off and redesigned the main image around the core buyer need—doubling click share even as market volume dipped.
Keyword Clicks34 → 70+106%
Click Share0.85% → 1.85%+118%
Impressions4,353 → 6,635+52%
Imp. Share2.53% → 4.08%+61%
~$97K → ~$160K MonthlyMulti-Category · Full Account Management
Multi-product store: broke a multi-quarter plateau to hit a record month
Sequenced listing conversion upgrades, A+ Content across hero SKUs, and structured PPC review cycles—compounding from ~$97K to ~$160K in monthly revenue.
Monthly Rev.~$97K → ~$160K+65%
Perf. Index~$128K → ~$190K+49%
Timeline7 monthsJun → Jan
OutcomeAll-Time HighRecord
+906% Purchases · 9.62% ShareBaby Supplements · Keyword Dominance
Baby supplement brand: 10× keyword purchases on #1 category term
Combined SQP search-funnel analysis, buyer-language listing SEO, main image CTR work, and exact-match ranking campaigns to capture 9.62% purchase share.
Weekly Orders16 → 161+906%
Purchase Share1.17% → 9.62%+723%
Keyword Clicks95 → 516+443%
Click Share2.71% → 6.81%+151%
+$87K Net Profit · −30.6% Ad CostLarge Catalog · Profitability Turnaround
Large-scale catalog seller: +$87K net profit turnaround in one quarter
Audited SKU-level contribution margins in Sellerboard, eliminated $34K in low-margin ad waste, and reversed YoY profit trend from −31.4% to +12.5%.
Net Profit$698K → $785K+$87K
YoY Trend−31.4% → +12.5%+43.9pp
Ad Spend$111K → $77K−30.6%
Ad Savings$34,024 saved1 Qtr
£256 → £297,128 GMV · 11,827 OrdersTikTok Shop · Creator-Led Growth
TikTok Shop (GBP): from £256 to £297,128 GMV driven by affiliate creators
Built an affiliate recruitment, seeding, Discord community, and brief engine from scratch—generating £197,522 in creator-attributed GMV and 11,827 orders.
Shop GMV£256 → £297,128Window
Orders11,827In Window
Creator GMV£243 → £197,522Creators
Hero SKU£71 → £145,065Top Item
+51.9% Shop GMV · +67% OrdersTikTok Shop US · GMV & Creator Scale
TikTok Shop (US): +51.9% GMV growth in two months by widening creator base
Broke through creator concentration plateau by expanding publishing affiliates from 503 to 556 and scaling GMV Max ads behind top-converting videos.
Shop GMV$77.3K → $117.4K+51.9%
OrdersFeb → Apr+67.0%
Creator GMV$48.7K → $70.3K+44.3%
Active Sellers120 → 133+13
$1.27K → $21.6K Sales · 2.72 ROASWalmart Marketplace · Channel Expansion
Walmart Marketplace: from $1,271 to $21,646 in monthly sales & Pro Seller
Rebuilt Walmart listing quality scores from Poor to Good, cleaned up catalog structure, and scaled Walmart Connect Sponsored Search to 2.72× ROAS.
Monthly GMV$1.27K → $16,855Oct → Mar
Apr Sales$13.3K → $21,646870 Units
Ad ROAS$1.80 → $2.72+51%
Listing Score57% → 67%Pro Seller
Original Client Reviews · Unedited
Every written review from our Trustpilot page.
Read all 12 original written client reviews verbatim—linked directly to Trustpilot so you can verify every single one.
Frequently asked questions
Is there a white-label Amazon agency for Japan?
Yes. CommerceKind runs Amazon.co.jp for agencies’ clients under the agency’s brand: Seller Central management, Japanese listings, Sponsored Products, Sponsored Brands and Sponsored Display in JPY, FBA Japan stock planning, importer and product-rule coordination and customer service, with reports carrying your logo. We sign an NDA and non-solicit first and never contact your clients.
Do you write Amazon listings in Japanese?
Yes. We research Japanese search terms in Amazon.co.jp search data and localise titles, bullets, images and A+ Content for Japanese shoppers, with the detailed specifications and sizes they expect, rather than machine-translating an English listing.
Does a foreign brand need an importer of record to sell on Amazon Japan?
Usually, yes, when stock is shipped into Japan for FBA. Brands based outside Japan commonly use an importer of record service. We coordinate with the client’s importer and customs broker; we are not customs or tax advisers.
Which products need extra approval on Amazon.co.jp?
Many electrical products need PSE marking, radio and Bluetooth products need Japanese radio certification, cosmetics need a licensed marketing authorisation holder, and food and supplements have their own rules. We check what Amazon asks for and work with the client’s advisers on anything new.
When are the biggest sales on Amazon Japan?
Prime Day in summer, Prime Big Deal Days in autumn, the late-year sales and the New Year sale in early January, with year-end gifting and Golden Week also affecting demand. We plan stock and ads around each one.
Can you run Amazon Japan alongside the US, UK and Europe?
Yes. CommerceKind covers every Amazon marketplace, so the same team can run Japan with the client’s other marketplaces under your agency’s brand.
Can you report in JPY?
Yes. Reports can be in JPY or USD, covering sales, ad spend, ACoS, TACoS, rankings and account health in your agency’s branding.
Will you ever contact or pitch my clients?
No. We sign an NDA before you share any client details and a non-solicit agreement, and we never approach, contact or market to your clients. You own the relationship.
Do you need my client’s login or password?
No. Access is granted through the platform’s own user-permission tools, which your client controls and can remove at any time. We never ask for shared passwords.
Can my agency start with just one client?
Yes. Most partners start with one client account to see how we work. There is no lock-in, and you add clients when you’re ready.
What proof can CommerceKind share?
CommerceKind has helped generate $100M+ in revenue for client brands, manages 60+ brands in-house and $3M+ in monthly ad spend, is an Official TikTok Shop Partner with a 10K+ creator network, and is rated 4.4/5 on Trustpilot from 13 reviews.
Clients asking about
Amazon Japan?
Book a free partner call. We’ll review one client’s products and Amazon.co.jp opportunity and send a white-labeled plan, under NDA.
Book a strategy call