Know What Your Competitors Are Doing Every Day

With AmzMonitor's Seller Monitoring tool, track any seller's storefront and see products added or removed, along with changes in price, stock, rating, title, badges, and coupons. Get daily alerts without checking their storefront manually.

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How Seller Monitoring Works

Add a seller by their Amazon Merchant ID and marketplace, optionally narrowed down to a specific brand.
Choose what to track: their storefront's Top 300 Best Sellers, Top 300 Newest Arrivals, Top 300 Best Rated, or their entire promoted catalog.
AmzMonitor scans that storefront every day, recording a fresh snapshot of price, stock, fulfillment, rating, badges, and coupons for every product in scope.
Each new snapshot is compared against yesterday's — anything that changed is flagged, and a daily alert email lands in your inbox.

Choose Exactly What You Want to Track

Not every seller needs the same level of scrutiny. AmzMonitor lets you pick the tracking scope per seller, so you're only watching what actually matters to you.

Top 300 Best Sellers — Follow the 300 products a seller's storefront is currently ranking as best sellers, the items actually driving their business.
Top 300 Newest Arrivals — Keep an eye on the 300 most recently added products, perfect for catching new launches the moment they go live.
Top 300 Best Rated — Track the 300 highest-rated products on their storefront, useful for spotting what's winning on reputation, not just rank.
All Products — Don't want to narrow it down? Track everything the seller is actively promoting on their storefront, up to 1,500 products.

See Exactly What Changed

Every day, AmzMonitor compares the latest snapshot to the previous one and flags exactly what moved, so you never have to check manually.

New and Removed Product Alerts — see the moment a product enters or drops out of a seller's promoted lineup, a strong signal of what they're pushing next.
Amazon Price Change Alerts — catch every price move on the products you're tracking, the day it happens, not a week later.
Stock and Fulfillment Alerts — know when a product goes out of stock, or when a seller switches between FBA and FBM, both strong signals for your own selling strategy.
Badge, Coupon and Rating Changes — AmzMonitor also tracks Amazon's Choice and Best Seller badges, active coupons, and review ratings, so you see the full picture, not just price and stock.

Everything You Need to Know About a Seller

Seller Summary at a Glance — see total product count, Best Seller and Amazon's Choice badge counts, review distribution, recent Added/Changed/Removed activity, and when the seller was last checked, all in one row.
Go From Overview to Detail — open any seller to see a Dashboard with recent activity, an Alerts tab with the full daily history so you can see not just what changed today but how the seller has behaved over the last 30 days, and a Products tab with position, price, stock, and ratings for every item, plus a dedicated notification bell to watch a single product on its own.
Compare Sellers Side by Side — go beyond single-seller monitoring with Catalog Overlap to see how much of one seller's catalog matches another's, Price Positioning to see who's cheaper on shared products, and a full Product Compare Table with price, shipping, stock, FBA, coupons, and badges lined up side by side.

Amazon Seller Monitoring FAQ

What is Amazon Seller Monitoring?

Amazon Seller Monitoring tracks a seller's storefront every day and alerts you whenever a promoted product's price, stock, fulfillment method, rating, or badges change, or when products are added to or removed from what they're promoting.

How many products can I track per seller?

You choose the scope when you add a seller: the Top 300 Best Sellers, Top 300 Newest Arrivals, or Top 300 Best Rated products, or their entire promoted catalog, up to 1,500 products.

How often is a seller checked?

AmzMonitor scans each tracked seller's storefront once every 24 hours and compares the new snapshot against the previous day's to detect what changed.

What kind of changes trigger an alert?

Any product being added to or removed from the tracked scope, along with changes in price, stock, fulfillment method (FBA/FBM), rating, badges, or coupons.

Can I compare multiple sellers against each other?

Yes. The Seller Compare Report lets you select any sellers you track and see catalog overlap, price positioning on shared products, and a full side-by-side product comparison table.

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