Offer Watch
Monitor every other seller competing on your Amazon catalogue - who they are, which of your ASINs they list, who holds the Buy Box, and get alerted the moment a new seller, an undercut, or a suppressi
Early access: Offer Watch is a newer module that is still rolling out. If it is not switched on for your account yet, the page opens blurred behind a join-the-waitlist card - add yourself there and we will enable it. Demo accounts can explore it with sample data. Everything below describes the page once it is unlocked.

📋 Overview
Offer Watch keeps an eye on the other sellers competing on your catalogue. It regularly checks the offers on your listings and tells you who else is selling them, who holds the Buy Box, and when anything changes - a new seller appears, someone undercuts your price, a listing gets suppressed, or a competitor withdraws.
It answers two questions that are otherwise a manual, ASIN-by-ASIN chore:
Who is on my listings right now? A full roster of competing sellers - Merchant ID, storefront name, which of your ASINs they carry, and how often they win the Buy Box.
What just changed? A live feed of offer events, plus email alerts so you hear about a hijacker or an undercut without watching Seller Central all day.
🔍 Where to find it
Offer Watch is in the sidebar with a binoculars icon, just above Lost & Found. While the module is in early access, the menu shows an hourglass badge and an "Offer Watch (Waitlist)" tooltip. It is also linked from the Competitor Tracker, the Listing Manager, and the Settings integrations list.
At the top of the page a hero card reads "Every other seller on your catalogue" / "Who they are, what they charge, and what changed.", with an All marketplaces filter (narrowed to the marketplaces you actually sell on, and remembered between visits) and a freshness stamp: "Checked {time} ago", often followed by "· next in {time}", or "Not checked yet" before the first check. Below it are three tabs: Overview, Competitor Sellers, and Settings.
📡 Overview tab
The summary card
One card sums up your position:
The hero number is your contested listings - listings (one product on one marketplace) with at least one other seller - shown as "{n} contested listings of {n} watched". Under it, a verdict: "Nobody else is on your listings right now", "{n} products, across {n} marketplaces", or "{n} products with another seller on them".
"Buy Box, right now" - a three-part bar for your listings: You hold it, A competitor holds it, No winner recorded.
Five chips that jump to the Competitor Sellers tab pre-filtered: Holds your Buy Box, Expanding, Amazon Retail, Active, Authorized. Click an active chip again to clear it.
Three quiet figures: Sellers (with "{n} in one country only" when you sell in several), You hold ("of {n} listings"), and Buy Box losses over the selected window or all time.
The "What changed" feed
Below the card is the event feed, titled What changed with a live "· {n} events" count. Its toolbar:
Search
"Search seller, ASIN or product" - narrows the feed as you type.
Counter chips
{n} Buy Box lost, {n} new sellers, {n} suppressed, {n} sellers left - counted over the selected window. Click one to show only those events; click again to clear.
Window
24h / 7d / 30d / All (default 7d). Drives both the chips and the list.
Event type
All changes, any single event type, or Suppressed (Buy Box or listing).
Columns
Show or hide feed columns. Locked columns are marked "always". Saved as your default view; Reset restores it. Exports use the columns ticked here, in this order.
Export
CSV or Excel of the feed. Capped at 500 rows - if more matched, a toast reads "Exported the first {n} of {total} events. Narrow the window or the type to get the rest."
When you arrive from a seller's History action, a scope bar reads "Showing only {seller}" with a Clear button.
The feed is a table. Its columns:
Event
The event label, plus a Critical badge on the most serious ones.
Seller
The other party. For Buy Box events it says who: "to {seller}" on a loss, "back from {seller}" on a win.
Product
Thumbnail and name.
What changed
The before-and-after: "You {yours} · them {theirs}" with "{gap}% below", "listed at {price}", "was at {price}", "{n} left · alerts under {n}", "won at {price}", "You hold the Buy Box again", "No offer is winning the Buy Box right now", and so on.
Your stock
"you had {n} in stock" or "you were out of stock" at the time (with "(reading of {when})" when the reading is older). Shown for Buy Box lost, Buy Box suppressed, and listing suppressed events.
ASIN
Click the ASIN to open the ASIN drill-down; the ↗ icon opens it on Amazon.
Mkt
A country flag tag - hover for the marketplace name and token.
When
Relative time; the absolute time on hover.
Sent
sent or queued - whether the alert has already gone out.
The feed is paged (25 / 50 / 100 / 250 rows).
The event types
New seller on your listing
Another seller started offering one of your ASINs.
Seller withdrew
A competing seller left a listing.
Buy Box lost
You lost the Buy Box on a listing - the Seller column names who took it.
Buy Box won
You won the Buy Box back - the Seller column names who you took it from.
Buy Box suppressed
Amazon suppressed the Buy Box on a listing (nobody shown as the featured offer).
Undercut on price
A competitor undercut your price beyond your threshold.
Listing suppressed
One of your listings became suppressed / no longer buyable.
Out of stock
A listing went out of stock.
Stock running low
Stock crossed your low-stock threshold.
Order refunded
A refund was recorded.
Listing content changed
The listing's content (title, bullets, description, images) changed.
Two more classes - Rating dropped and Rating improved - exist as alerts (see Settings) but are not offered in the feed's type filter.
👥 Competitor Sellers tab

This is the roster: every seller competing on your catalogue, one row each. The tab label carries a live count badge of the sellers matching your current view and search.
View tabs and toolbar
Five counted view tabs slice the roster: All, Holding your Buy Box, Expanding, Amazon Retail, and Withdrawn. Sellers who have left live only in Withdrawn - they never appear inside All.
Search
"Search seller, Merchant ID or ASIN". Typing a 10-character ASIN switches to a per-ASIN view with a scope bar reading "Showing only sellers on {asin}".
Columns
Show or hide columns; saved as your default view.
Export
Two grains, each as CSV or Excel: Sellers (the visible rows and visible columns, in table order) and Sellers x ASINs (one row per seller and listing; withdrawn rows are included only when you are on the Withdrawn view). All timestamps in exports are converted to your local time, so the file agrees with the screen.
Ticking rows opens a bulk bar - "{n} selected" - with Mark authorized, Remove authorization, and Clear selection. If some rows fail, a toast reports "{n} of {total} could not be updated."
A colour legend under the table explains the row tints: Holds one of your Buy Boxes, Expanding: took new listings of yours since the watch began, Amazon Retail, recognised from the name, Authorized, Withdrawn.
Columns
Click a header to sort by Seller, Status, Buy Box wins, Deepest undercut, Your ASINs, Marketplaces, Feedback, Lowest price, First seen, or Last seen. FBA / FBM does not sort. Every column except the locked ones can be hidden from the Columns menu.
Seller
Storefront name (linked to the storefront), with the Merchant ID and the country flags they trade on underneath.
Status
See below.
Buy Box wins
How many of your listings they currently hold the Buy Box on.
Deepest undercut
Their sharpest price gap against you, as "{gap}% below".
Your ASINs
How many of your ASINs they carry - click to open the seller drill-down.
Marketplaces
How many marketplaces they compete on (hidden by default).
FBA / FBM
Their offers split by fulfilment, as two tags: FBA n and FBM m.
Feedback
Their seller feedback as "{pct}% (count)".
Lowest price
The lowest price they offer across your listings (hidden by default).
First seen
When they first appeared on your catalogue.
Last seen
When they were last observed.
The list is capped at 1000 rows with the notice "showing the first 1000; refine with search or export for the full list". If no other sellers are found, it reads "No other sellers found on your catalogue" - which, for a brand-registered or private-label catalogue, is normal and healthy.
Status values
The Status chip is one of five, in this order of precedence:
Authorized
One of your own distributors or authorized resellers - never alerts.
Withdrawn
No longer on any of your listings.
Amazon Retail
Recognised from a storefront name starting with "Amazon". Amazon sells your ASINs directly - not a hijacker, and cannot be removed.
Holds your Buy Box
Currently holding the Buy Box on at least one of your listings (the only red status).
Active
Competing on your catalogue.
Any non-withdrawn seller who has moved onto new listings of yours since the watch began also carries an expanding sub-badge.
Authorized sellers. If a seller is one of your own distributors or an authorized reseller, mark them Authorized. Offer Watch then treats their offers as expected and never alerts on them - so your feed stays focused on genuine competitors and hijackers.
Row actions
Each row ends in a ⋮ menu:
History - scopes the Overview feed to this seller and switches to it.
Show their ASINs - opens the seller drill-down.
Open storefront - only shown when the storefront link is a valid Amazon address.
Mark authorized / Remove authorization.
Seller drill-down
"Offers by {seller}" opens with a recap head: the seller (linked), Merchant ID, country flags, status chip, "{n} of your ASINs", the marketplace name if there is only one, and their feedback. On the right: CSV and Excel export buttons and a History button.
Chips at the top filter the rows: All, Buy Box held, Undercutting you, You are ahead, Not against you, and Withdrawn (when there are any). A hint explains that muted rows are ASINs where you have no live offer in that country - the merchant sits on the product, not against you.
One row per (ASIN, marketplace, condition, fulfilment), sorted fights-first - Buy Box holders, then undercuts, then the rest:
Product
Thumbnail, name, ASIN (drill-down button and ↗), your SKU, and the item condition when it is not "new".
Marketplace
Shown only when the seller spans more than one marketplace; with a single one, the country moves into the recap head.
Situation
One of Holds your Buy Box, Undercutting you, You are ahead, Not on your listing here, or Withdrawn - each with a tooltip.
FBA / FBM
Their fulfilment on this offer.
Their price
The competitor's price, with "incl. {ship}" when shipping applies.
Your price
Your price on the same listing, or "not listed here".
vs you
"{gap}% below", "{gap}% above", or "same price" - shipping included on both sides.
Stock
What the listing exposes as available. Amazon caps this, so treat it as "at least".
Last seen
When this offer was last observed.
The export writes exactly the chip-filtered rows on screen.
ASIN drill-down
Open it from an ASIN anywhere on the page. The head shows the product, its ASIN, "{n} marketplaces" with a flag per marketplace (each linking to that country's Amazon page), plus CSV / Excel and Show in feed (which searches the feed for that ASIN).
"Across your marketplaces" lists one row per country: Marketplace · Buy Box · Your price · Cheapest competitor · Sellers · Your stock · Last check. The Buy Box cell reads You, the competitor's name, or Nobody recorded; the cheapest competitor shows the price, the gap, and the seller, or No other seller; the last check reads "Checked {time} ago · next in {time}", "Last check failed ({status}) - showing data from {when}", or "Not checked yet". Countries with a rival open by default.
Click a country to see every offer there: Seller (your own row is labelled Your offer) · FBA / FBM · Lowest price · vs you · Stock · Feedback, with a Buy Box chip on the holder and a Withdrawn chip on offers that have gone. If there is nobody else: "Only you are on this listing here."
Below the tables, "What happened here" is a timeline of this ASIN's events - age, label, the other party, the detail, your stock at the time, and whether the alert was sent or queued.
⚙️ Settings tab
Checks we run for you
Some changes are things Offer Watch finds by checking your listings once a day. Because they are only looked for daily, they cannot arrive instantly - so this whole group is one switch, not a schedule: "Tell me what changed on my listings", delivered in your daily report. When it is off: "Off - we keep checking and recording, but none of these will email you."
The switch covers six classes:
A new seller appears on your listing
A seller withdraws
You win or lose the Buy Box
Someone undercuts your price
Your review rating drops
You get a new review
What Amazon reports to us
Other changes are pushed to us by Amazon the moment they happen, so you choose how fast each reaches you. This section is a matrix with one row per class and four choices: Instant, Hourly, Daily, or Off. Read down the Instant column to see what will email you straight away. A live line above it sums up "{n} reach you instantly · {n} in the hourly report · {n} in the daily report · {n} off".
The five classes:
Your listing content changes (needs the Amazon subscription below)
A listing or Buy Box is suppressed
Out of stock
Low stock warning
Order refunds
Setting anything other than Off on Your listing content changes while the subscription is not active first asks you to confirm, and leaves the row on Off until Amazon accepts.
Summary report
Everything set to Hourly or Daily above is collected and sent together on this schedule: Send (Every hour, Every day, Once a week, or Never) on a weekday (weekly only) at an hour. The hour field disappears for Hourly and Never.
Your chosen time is saved, but not yet applied. The note under the control reads "Saved. Times are in {timezone}. Reports currently go out on the standard hourly and daily boundaries; your chosen time applies as soon as the sender picks it up." The timezone is your browser's and is stored with the setting.
Listing change watching
Amazon has to push listing changes to us before we can alert on them, so this section asks Amazon directly and shows what is really switched on: "Amazon is sending us listing changes", "Not switched on", "Only partly switched on", "Could not check with Amazon", "No Amazon account connected", or "Checking with Amazon..." while it loads. The button reads Watch listing changes or Stop watching.
Limits
"Only tell me about undercuts of at least {n} %" (default 2) - below this we stay quiet, so ten cents never becomes an email.
"Never send more than {n} instant emails per day" (default 15, up to 500) - anything over the limit rolls into your next digest instead of being dropped.
Authorized sellers
Your own distributors: they stop counting as hijackers and never trigger an alert. This is a row editor - each row is a Merchant ID, the Marketplace it trades on, and the Seller name we look up there, with an × to remove and an Add seller button. Pasting a comma- or space-separated list splits it into one row per ID.
Each row reports its lookup: "Looking up the seller name…", the resolved name with its source ("Looked up on Amazon" / "Seen on your catalogue"), "Name not found on this marketplace", "Pick a marketplace to look up the name.", "Could not check this Merchant ID right now." (with Try again), "This does not look like an Amazon Merchant ID.", or "This Merchant ID is already in the list." Malformed IDs are never saved.
Who receives the emails
You, the account owner is always included. Add colleagues in the free-text field (comma-separated), then Save. Send test email mails a sample alert to your saved recipients - so save first if you have just added someone. Success reads "Sample alert sent to {n} recipient(s)."
Pause and save
Pause Offer Watch keeps your data and settings but stops all checks and emails. A sticky bar at the bottom shows an Unsaved changes marker, a status line, Discard, and Save settings. After saving you may also see partial notes such as "Settings saved, but the report schedule could not be stored yet." or "Saved, but Amazon refused the listing-change subscription - the switch was reset. Try again in a moment."
🚦 Getting started
Enable Offer Watch
The first time you open the page, a full-page card reads "Start watching your catalogue" - "We will take a baseline of every seller currently on your {count} listings." - with an Enable Offer Watch button. (If the page instead says "Offer Watch is not switched on yet" or asks you to connect an Amazon account, follow that prompt first.)
Tune what reaches you
In Settings, switch on "Tell me what changed on my listings" for the daily checks, and pick Instant / Hourly / Daily / Off for each of the Amazon-pushed classes. Set your undercut threshold, confirm the listing-change subscription if you want it, save, and send a test email to confirm delivery.
🔗 Deep links
Alert emails and other pages link straight into the right spot:
?tab=settings
The Settings tab (the footer of every alert email).
?seller={merchant id}
Competitor Sellers with that seller searched (the seller named in a mail).
?asin={ASIN}
Competitor Sellers scoped to that ASIN, with the "Showing only sellers on {asin}" bar.
?event={TYPE}
The Overview feed pre-filtered to that event type (the Listing Manager uses LISTING_CHANGE).
❓ FAQ
💡 Tips
Mark your authorized sellers first - it is the single biggest thing you can do to keep the feed signal-heavy.
Use the Sellers x ASINs export when you need the full "who sells what" picture for a supplier conversation or a brand-protection case.
Set the undercut threshold to match your margins - too low and every tiny price move alerts you; too high and you miss real undercutting.
Start a seller investigation from the Holding your Buy Box view, then open the drill-down and filter to Undercutting you - that is the shortlist that is actually costing you sales.
Pair Offer Watch with the Repricer: watch to understand the competition, reprice to respond to it.
➡️ What's Next?
Competitor Tracker & Notifications - track ASINs you do not sell, plus your email and bell notifications.
Repricer Overview - act on the competition Offer Watch surfaces.
Reimbursements (Lost & Found) - recover money when a suppression or issue costs you.
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