Hineri Catalog | for solo EC sellers

Solo EC Seller — Products, Inventory & Profitability Template
See your real take-home profit, not just the list price

A Notion template for solo sellers on Amazon, Rakuten, Mercari, BASE, minne, or their own store to manage per-product inventory, purchasing, and profitability in one place. It auto-calculates the real take-home profit after cost, marketplace fees, and shipping — and flags loss-making products, reorder needs, and dead stock by color.

⚠ This template uses only Notion's standard features and is a manual-workflow template. Automatic inventory sync / order ingestion with marketplaces is not included; inventory and sales are recorded manually. It also does NOT handle customer personal data (names, addresses) — use a separate template for customer management.

$12 / ¥1,480

individual template (one-time purchase)

Sound familiar?

🔴

Selling well, but not making money

It looks profitable at the list price, but after fees, shipping, and cost it's a loss — and you can't spot these "hidden loss-makers".

💤

Cash trapped in dead stock

You can't tell which items haven't sold in ages, while the cash you spent on them sits frozen in inventory.

🛒

Missing the reorder timing

Ordering without accounting for lead time, you run out before stock arrives — and guess at how many to reorder.

4 design ideas (“twists”)

Built for the economics of a solo EC business — not found in generic templates.

💰

A. Real per-product profit

Auto-calculates take-home profit per product after marketplace fees, cost, and shipping, flagging "items that lose money the more you sell" with 🔴. Enter the actual fees and shipping on each sale and you also see the gap between expected and actual (e.g. it was secretly a loss).

💤

B. Dead-stock detection

Inventory with no sale for 90+ days is flagged 💤 with the number of days stalled. Find the dead stock tying up your cash before it becomes a loss.

🛒

C. Reorder-point alert

When stock drops below expected daily sales × lead time + safety stock, you get 🛒; out-of-stock shows 🚨. It even suggests a reorder quantity rounded up to the supplier's minimum order quantity.

📦

D. Inventory valuation

Current stock × unit cost shows how much cash is tied up in each product. See at a glance where your capital is concentrated — the basis for cash-flow and stocktaking.

What's included

📊 3 databases

  • ・ Products (master; auto-judges profitability, stock, reorder)
  • ・ Stock Moves (purchases, sales, disposal, etc.)
  • ・ Suppliers (lead time, minimum order quantity, payment terms)

📐 20 views

  • ・ Act-now items / Reorder needed / Out of stock
  • ・ Loss-makers / Dead stock / By inventory value
  • ・ By category / By channel / By payment terms, and more

📑 3 guide pages

  • ・ 🌱 Getting started (first 10 minutes)
  • ・ 📋 How each field works
  • ・ 🔍 How to use the views

🎬 23 sample rows

  • ・ Demonstrating loss-maker / dead stock / reorder / out-of-stock
  • ・ Every field has a plain-language description

Initial setup in ~10 minutes after purchase

(Estimate. Varies with Notion familiarity, typing speed, and network conditions.)

  1. ①(~2 min) Add one of your products to Products (name, unit cost, sell price, expected marketplace fee %, expected shipping, initial stock)
  2. ②(~1 min) In the same row, enter safety stock, expected daily sales, and lead-time days. The profitability signal and reorder alert appear automatically.
  3. ③(~2 min) Record one sale of that product in Stock Moves (type = sale, quantity, amount, channel)
  4. ④(~2 min) Back in Products, see current stock fall and cumulative revenue rise; the inventory status changes accordingly
  5. ⑤(~3 min) Register one supplier in Suppliers; uncheck the "sample row" box and replace samples with your own data

Who this is for / NOT for

✅ For

  • ・ Solo EC sellers (retail / handmade / small-scale manufacturing), 10–200 products
  • ・ Selling on Amazon / Rakuten / Mercari / minne / BASE / own store
  • ・ Want to track real take-home profit, not just the list price
  • ・ Want to visualize out-of-stock, reorder, and dead stock in Notion

❌ Not for

  • ・ Those expecting automatic marketplace integration (inventory sync / order ingestion)
  • ・ Those who need to manage customer personal data (use a separate template)
  • ・ Those expecting warehouse (FBA / 3PL) integration
  • ・ Those expecting order / shipping automation (this template uses manual recording)

FAQ

Q. Automatic inventory sync with Amazon / Rakuten, etc.?

A. Automatic integration is not included. Inventory is recorded manually; the intended workflow is to reconcile weekly with each marketplace's admin screen.

Q. Can it manage customer information?

A. This template manages "products (things)" and does not handle customer names, addresses, etc. For customer management, use the separate "Solo EC Seller — Customer Management Template".

Q. Does it work with many products?

A. It works within Notion's DB limits (Free Plan 1,000 rows / Plus 5,000 rows). For 500+, the Plus Plan is recommended; for 1,000+, consider a dedicated inventory service.

Q. Returns / refunds?

A. Due to the nature of digital products, returns after duplication are not accepted. For defects, contact [email protected] within 7 days. See the Specified Commercial Transactions Act disclosures.

Disclosures under the Specified Commercial Transactions Act (Japan)

Seller
Hineri (trade name, sole proprietor)
Representative name
Available upon request
Address
Available upon request
Contact
[email protected] / phone available upon request
Price
$12 (¥1,480 incl. tax in JP; each store converts automatically to local currency)
Payment methods / timing
Credit card (Visa / Mastercard / AMEX / JCB), PayPal, and each store's payment methods (Lemon Squeezy / Gumroad / Polar / BOOTH). Charged at order confirmation.
Delivery
Immediately upon payment completion (auto-delivered by each store). Notion duplication link provided on the completion screen + confirmation email.
Return policy
Due to the nature of digital products, returns / refunds after duplication are not accepted in principle. If Notion duplication fails or the product is defective, contact support within 7 days of purchase for individual response.
Operating environment
Notion (Free Plan or above), mainstream web browsers (Chrome / Firefox / Safari / Edge, latest versions). A Notion account is required.

※ These are the disclosures of Hineri Catalog (sole proprietorship). Equivalent disclosures are posted on each store page (Lemon Squeezy / Gumroad / Polar / BOOTH).

Trademark / Attribution Notice

Amazon, Amazon.com.jp, and Amazon Marketplace are trademarks or registered trademarks of Amazon.com, Inc. Rakuten Ichiba is a trademark of Rakuten Group, Inc. Mercari is a trademark of Mercari, Inc. minne is a trademark of GMO Pepabo, Inc. BASE is a trademark of BASE, Inc. Yahoo! is a trademark of LY Corporation. eBay is a trademark of eBay Inc. Etsy is a trademark of Etsy, Inc. Notion is a trademark of Notion Labs, Inc. This template and this LP are NOT business partners or official partners of the above companies; the names are listed solely as supported platforms.

See your real take-home profit. The Products, Inventory & Profitability Template for solo EC sellers.

$12 / ¥1,480 one-time. Operational immediately with a Notion account.

Buy now

Available on Lemon Squeezy / Gumroad / Polar / BOOTH

¥1,480 / $12 Buy Gumroad Polar Lemon Squeezy BOOTH