Most tools tell you a status changed. SentryKit tells you why — the reason code Amazon gave for a suppression, which cost component broke your floor price, which seller is sitting on your offer and where they ship from. Real-time Amazon product monitoring across every ASIN and every marketplace you sell in.
No credit card required · Cancel anytime
Every signal arrives with the context you would otherwise spend twenty minutes digging for across Seller Central. Pick a scenario.
Ordered by what Amazon sellers actually search for — fees and margin first, because that is where the money is. Nothing here is reserved for a higher tier.
FBA and referral fee changes, margin thresholds crossed, and landed cost moving against your floor price. Fees update automatically from Amazon, so your floor is never stale.
Buy Box lost and regained, no featured offer at all, competitor price moves with the exact delta, and your own price changes. Buy Box Lost and Buy Box Suppressed are kept separate, because the fix is not the same.
Account health rating movement, policy and performance metrics, and the notifications that tend to arrive before an enforcement action does.
Search suppression with the reason Amazon gave, including the reason code — not just a suppressed flag. Plus suspended listings and the Add to Cart button disappearing.
Title, main image, bullets, category and parent-child changes — plus backend attributes most tools never look at, like generic keywords and country of origin, shown as a before and after.
New reviews as they land, movement in your top-rated reviews, and seller feedback trends across the catalogue.
Best seller rank movement, and the badges that quietly move conversion — Best Seller, Amazon's Choice, and Subscribe & Save eligibility.
FBA and FBM stock levels, true stock-outs including units still in transshipment, and sales volume swings in both directions that change how long your cover really lasts.
A seller you don't recognise appearing on your branded listing, with their profile: fulfilment type, feedback rating, storefront size, and US-based versus overseas. Repeat offenders are flagged as repeat offenders.
Every signal can reach you on the channel you already have open — no dashboard required, and no upgrade to get programmatic access.
Day one you get the event. By the end of the trial you have a baseline, which is what turns an alert into a decision. All of this lands inside 14 days, before you have paid anything.
Connect a storefront and signals start arriving on your live catalogue. Each one names the metric that moved and why — the suppression reason code, the competing seller, the cost component that broke your floor.
A week of history is enough to see which ASINs churn constantly and which never move. The noisy ones stop looking like emergencies, and the quiet one that suddenly fires starts meaning something.
By the end of the trial the same competitor showing up for the fourth time is flagged as a repeat, not reported as new. You can see which threats are structural and which were one-offs — before you decide whether to pay.
Nothing above requires a card. Every signal and every delivery channel is open for the full 14 days.
14 days free, no card. Then from $19/mo.
