Product Sourcer
Search any Amazon product by ASIN (Amazon Standard Identification Number), UPC, EAN, or keyword. Analyze profitability, fees, BSR (Best Seller Rank) history, price trends, competitor offers, and BuyBo
Difficulty: 🟡 Intermediate · Reading time: ~10 min
Open this page in your dashboard: Go to Product Sourcer →
📋 Overview
The Product Sourcer is SellerMagnet's primary product-research tool. Enter any product identifier or keyword, select a target marketplace, and within seconds you receive a complete profitability breakdown, competitive landscape analysis, and historical trend data.
Whether you are an online-arbitrage seller scanning hundreds of ASINs a day, a wholesale buyer evaluating a supplier catalog, or a private-label researcher validating demand, the Sourcer gives you every data point you need to make a confident buy/pass decision without ever leaving the SellerMagnet dashboard.
Accessing the Sourcer
Log in to your SellerMagnet dashboard.
In the left navigation, click Sourcer.
The page opens on the Overview tab by default. A second tab, Converter, provides bulk identifier conversion.
Search & Marketplace Selection
At the top of the Overview tab you will find:
Search bar
Accepts ASIN, UPC, EAN, ISBN, or product name keywords
Marketplace select
Dropdown of all Amazon marketplaces connected to your Seller Central account
Search button
Triggers the product lookup
Info button
Opens a legend explaining icons and data fields used on the results page
Supported Input Formats
ASIN
B09V3KXJPB
10-character Amazon Standard Identification Number
UPC
012345678905
12-digit Universal Product Code
EAN
4006381333931
13-digit European Article Number
ISBN-10/13
978-0134685991
Books only
Keyword
silicone spatula set
Returns the best-matching ASIN for the query
Pro tip: Paste a full Amazon product URL directly into the search bar. SellerMagnet automatically extracts the ASIN from the URL, saving you the step of copying just the identifier.
Search Quota
Depending on your subscription plan, each account has a monthly search quota. A progress bar at the top of the page shows:
Searches left: remaining lookups for the current billing cycle
Total searches: your plan's monthly allowance
Progress bar: visual fill indicating usage percentage
Warning: When your quota reaches zero, searches will be blocked until the next billing cycle or until you upgrade your plan. Plan your bulk research sessions accordingly.
Product Information Card
After a successful search, the Product Info card appears on the left side. It contains:
Product Identity
Product image
Primary listing image from Amazon
Product name
Full listing title (truncated to two lines)
Star rating
Average customer rating with star visualization
Review count
Total number of customer reviews
ASIN
Amazon Standard Identification Number
EAN
European Article Number (when available)
KPI Strip
Three high-level KPI cards sit below the product identity:
BSR
Best Sellers Rank in the product's primary category
Lower BSR = higher sales velocity. Under 50,000 is generally strong.
Est. Sales
Estimated monthly unit sales based on BSR modeling
Validates demand before you commit capital
Max Cost
Maximum you can pay per unit and still break even at the current price
Your instant go/no-go number for sourcing
Detail Grid
Below the KPI strip, a two-column grid provides granular product data:
BuyBox Price
Current Buy Box winning price
Offers
Total number of active seller offers
Amazon's Price
Price when Amazon Retail is offering the product (if applicable)
Total Stock
Aggregated stock across all offers
Lowest FBM
Cheapest Fulfilled by Merchant price
Variations
Whether the listing has size/color/style variations
Lowest FBA
Cheapest Fulfilled by Amazon price
Eligible
Whether your Seller Central account is eligible to sell this ASIN
BuyBox Share
Whether BuyBox share data is available for analysis
Hazmat
Whether the product is classified as hazardous material
Private Label
Whether the listing appears to be a private-label brand
Understanding the icons: A green checkmark means the condition is favorable (e.g., you are eligible to sell, the product is not hazmat). A red X indicates a potential concern that warrants investigation.
Profit Calculator
The Profit Calculator card appears directly below the Product Info card. It lets you model profitability scenarios in real time.
Input Fields
Cost Price
Empty
Your per-unit acquisition cost (landed cost)
Sale Price
Current BuyBox
The price at which you plan to sell (pre-filled with BuyBox price)
VAT %
0.00
Value-added tax rate for your country
Fulfillment Type
FBA
Toggle between FBA and FBM to compare fee structures
FBM Cost
Hidden
Appears only when FBM is selected: enter your own shipping cost
Output Fields
Most important metrics (in order): 1. Estimated Profit : is there money to be made? 2. ROI : is the return worth your capital? 3. Margin, is there enough cushion for price drops? If all three show a positive indicator (✅ green), the product is worth investigating further.
Max Cost
Maximum purchase price to break even
Total Fees
Sum of all Amazon fees (expandable to see individual fee lines)
VAT Due
Calculated VAT amount based on your entered rate
Breakeven Sale Price
Minimum sale price needed to cover all costs at your entered cost price
Estimated Payout
What Amazon will deposit to your bank after all deductions
Estimated Profit
Net profit per unit (highlighted in green)
Margin
Profit as a percentage of the sale price
ROI
Return on investment: profit divided by cost price
Pro tip: Click the Total Fees row to expand a detailed breakdown showing the referral fee, FBA fulfillment fee, storage fee, and any other applicable charges. This helps you understand exactly where your money goes.
Realistic Example
Suppose you find a kitchen gadget with the following data:
BuyBox Price
EUR 24.99
Cost Price
EUR 8.50
VAT Rate
19%
Fulfillment
FBA
The calculator returns:
Total Fees
EUR 7.82
VAT Due
EUR 3.99
Estimated Profit
EUR 4.68
Margin
18.7%
ROI
55.1%
With a 55% ROI and nearly 19% margin, this product passes most sourcing criteria. You would then check BSR history and competition before committing.
Offers Table
The Offers section shows every active seller on the listing, displayed in a sortable table.
#
Offer index (rank by price)
Fulfillment
FBA or FBM badge
Seller
Seller name (Amazon Retail highlighted when present)
Price
Listed price including shipping
Stock
Estimated stock quantity for that seller
Why this matters: If Amazon Retail is on the listing, winning the Buy Box becomes significantly harder. If there are 20+ FBA sellers within a tight price band, margins may erode quickly. Use this table to gauge competitive intensity.
📈 Charts & Historical Data
Four charts provide trend and competitive intelligence:
1. BSR History Chart
Displays Best Sellers Rank over time (typically 30-90 days). Click the expand button to view the chart in full-screen mode.
What to look for:
Stable low BSR: consistent demand
Seasonal spikes: BSR drops sharply during holidays, then climbs back
Steadily rising BSR: declining demand; proceed with caution
2. Price History Chart
Shows historical pricing trends for the product, including BuyBox price and lowest FBA/FBM offers.
What to look for:
Price stability: healthy market; margins are predictable
Frequent price wars: indicates aggressive repricer competition
Sudden price drops: may signal liquidation or new aggressive entrant
3. Monthly Sold Chart
Bar chart showing estimated monthly units sold over time. Validates whether the product has consistent demand or is trending up/down.
4. BuyBox Share Chart
A pie chart and history table showing which sellers won the BuyBox, their average selling price, win count, and the date they last held the BuyBox.
Pro tip: Click the expand icon on any chart to open it in a large modal. This is especially useful for BSR History, where you want to identify seasonal patterns over longer timeframes.
Search History
Below the main results area, a Search History table logs every product you have previously looked up. Each row shows:
Picture
Product thumbnail
Product Title
Listing title
ASIN
Amazon identifier
Timestamp
When you performed the search
Click any row to instantly reload that product's data without consuming an additional search credit.
Note: Search history is saved per account and persists across sessions. Use it to quickly revisit products you are evaluating over multiple days.
Chrome Extension Integration
A badge in the top-right corner of the search section links to the SellerMagnet Chrome Extension on the Chrome Web Store. The extension allows you to run Sourcer lookups directly from any Amazon product page without switching to the dashboard.
See the dedicated Chrome Extension Guide for installation and usage instructions.
Common Sourcing Workflow
Identify candidates: Use supplier catalogs, wholesale lists, or manual browsing to find potential ASINs.
Paste ASIN into Sourcer: Select the target marketplace and click Search.
Check BSR and Est. Sales: Confirm minimum demand (e.g., BSR under 100,000, Est. Sales above 30/month).
Review competition: Check the Offers table. Avoid listings with 15+ FBA sellers or Amazon Retail presence.
Calculate profit: Enter your cost price. Require a minimum 30% ROI and 15% margin.
Validate with history: Confirm BSR and price stability over 90 days.
Decision: Buy if all criteria pass; skip if any red flags appear.
⚠️ Common Mistakes to Avoid
Ignoring the number of competing FBA sellers
Even a profitable product loses margin when 20 sellers race to the bottom
Not checking Amazon Retail presence
Amazon Retail almost always holds the BuyBox; your inventory may sit unsold
Using BuyBox price without checking price history
A temporarily inflated price gives a false profit picture
Skipping the Hazmat flag
Hazmat products require special approvals and higher FBA fees
Not accounting for VAT
Forgetting VAT can turn a "profitable" product into a loss
Sourcing based on BSR alone without Est. Sales
A low BSR in a tiny category may still mean only 5 units/month
## ✅ Best Practices
Set personal sourcing criteria before you start: Define your minimum ROI, margin, and maximum competitive seller count. Stick to these rules to avoid emotional buying decisions.
Batch your research: Paste multiple ASINs in sequence and use Search History to compare them later.
Cross-reference marketplaces: A product with thin margins on Amazon.de may be highly profitable on Amazon.it or Amazon.es. Switch marketplaces in the dropdown and re-run the search.
Use the Chrome Extension for speed: When scanning retail websites or competitor storefronts, the extension lets you evaluate products without context-switching.
Check seasonality: Use the BSR History chart to identify whether current demand is sustainable or just a seasonal peak.
❓ FAQ
What product identifiers can I search for?
ASIN, UPC, EAN, ISBN-10, ISBN-13, full Amazon product URLs, or keyword phrases. The Sourcer handles all of these automatically.
Does each search consume one credit from my quota?
Yes. Each unique product lookup counts as one search. Reloading a product from Search History does not consume an additional credit.
Why does the calculator show different fees when I toggle between FBA and FBM?
FBA fees include pick-and-pack fulfillment, storage, and weight handling charges. FBM fees are limited to the referral fee since you handle shipping yourself (enter your own shipping cost in the FBM Cost field).
Can I search for products on marketplaces where I do not sell?
The marketplace dropdown shows all marketplaces connected to your Seller Central account. If you want to research a marketplace you have not yet enrolled in, you will need to add it in Seller Central first.
How accurate are the Estimated Sales figures?
Sales estimates are modeled from BSR data using category-specific algorithms. They are directional indicators, accurate enough for sourcing decisions but not exact. Always validate with your own sales data after a test shipment.
What does the "Eligible" field mean?
It indicates whether your seller account is approved to list and sell that specific ASIN. Some categories and brands require gating approval from Amazon.
Why do I see a VAT warning icon?
The VAT rate could not be auto-detected for the selected marketplace. Enter your applicable VAT rate manually to get an accurate profit calculation.
➡️ What's Next?
Chrome ExtensionIdentifier ConverterRepricer OverviewLast updated