Japan e-commerce email data
We subscribe to the newsletters of Japanese online stores and brands, and turn every email into data: when they run sales, how deep the discounts go, which days and hours they send, and how Japan's own shopping calendar shapes it all.
Sample
Why Japan is different
Japanese retailers often boost loyalty points instead of cutting prices, and free-shipping offers are a standard lever. Our data separates sales, coupons, points and free-shipping emails.
New Year sales (Hatsuuri) and lucky bags, Golden Week, summer and year-end gift seasons (Ochugen, Oseibo) sit alongside Black Friday. See when brands actually start.
Which weekday, which hour, how many emails a week, and how subject lines are written in Japanese. Benchmarks you can hand to your CRM team.
Reports · one-time payment
A PDF report plus the underlying CSV data. Prices in US dollars, for business customers outside Japan.
Six months of one Japanese brand's marketing emails, analyzed.
Benchmark a whole Japanese category over the last 90 days.
Black Friday to New Year: how Japanese brands ran the season.
Who it is for
Plan your first year of email and promotions with real benchmarks from Japanese competitors.
Back up your Japan-entry proposals with data your clients cannot easily get themselves.
Track how often, and how deeply, Japanese retailers are promoting.
We subscribe to each brand's public newsletter with our own inboxes in Japan, and read the emails we receive automatically: type of email, discount, deadline, free shipping, points and seasonal events. Personal details in the emails are masked when we store them.
No. Reports contain aggregated figures and tables only. We do not reproduce email bodies or images, which remain the property of each brand.
These reports are sold to businesses only. At checkout we ask for your company name and, optionally, your tax ID.
Prices are in US dollars. Stripe emails you a receipt after payment. We do not add Japanese consumption tax to sales to business customers outside Japan; depending on where you are, you may need to account for VAT or GST yourself under local rules. If you are located in Japan, please use our Japanese site.
Brand and industry reports are emailed as a download link within 5 business days (Japan time). The year-end season report is delivered by January 20, 2027. If we deliver late, we refund you in full.
Japanese online stores and brands across fashion, beauty, food, electronics, home, baby and pet categories. See the brands available for a report.
No. We are an independent research service operated by SweetLeap Inc. in Osaka, Japan.
A full sample report built from fictional brands, so you can see exactly what you get.
Get the free sample
