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Amazon seller monitoring for the UK and Europe

Get an alert when a listing is suppressed, blocked for compliance, loses the Buy Box or runs out of stock in any UK or EU Amazon store, with Amazon's reason and what to fix.

Start free trial → See pricing
14 days free, no card
From $19/mo
Unlimited ASINs, every marketplace
Example dashboard. Products and numbers are made up.
What we watch

Everything we watch, in every UK and EU store

Buy Box and pricing
Who took the Buy Box, at what price, and whether they ship FBA or FBM. We also alert on competitor price moves, your own price changes, and when Amazon flags your price against its competitive price.
Hijackers and new sellers
An alert the moment a seller joins your listing. Mark your authorised resellers, and your own Vendor offers, once and they stay quiet.
Listings taken down
Suppressed, not buyable, restricted, or blocked for compliance, including GPSR and EPR blocks in EU stores. Each alert gives Amazon's reason and the field to fix, and you get an all-clear when it's back.
Listing changes
Title, bullets, images, category, variations and backend fields, shown before and after.
Reviews and ratings
New reviews, a run of low ratings, and changes to your star rating, per marketplace.
Rank
Best Seller Rank and keyword rank moving past the limits you set.
Stock and sales
Low stock and out of stock for FBA and FBM. Days with no sales, or sales well above or below normal.
Fees and Fee Recovery
FBA fee changes with the old and new fee. When Amazon re-measures a product and the fee drops, you get a list of the orders you were overcharged on, ready to claim.
Account health
Your Account Health Rating, order defect rate and late shipment rate, plus new policy warnings.
[UK] Seller C on Your ASIN — Bamboo Bath Mat, Non-Slip, 60 x 40 cm
S
SentryKit Alerts <alerts@sentrykit.com>
to you · 11:18
Competitor Alert
Real-time
⚡
COMPETITOR ALERT
Seller C on your ASIN
Bamboo Bath Mat, Non-Slip, 60 x 40 cm
ASIN: B0EXAMPLE1 · UK Marketplace
Their Price
£16.49
Below your price
Your Price
£18.99
Current listing
Buy Box
Lost to competitor
They're winning
Fulfillment
FBM
Not FBA
Hijacker Merchant Id: Seller C
YOUR OPTIONS
A
Check Seller Central — look up this Seller ID and determine whether they are an authorised reseller or an unknown third party.
B
If you are the brand owner — initiate a Brand Registry report for this ASIN.
View Offer List →Report to Amazon →
⏱ Fires once per unique Seller ID. This ID is now logged.
SentryKit · Starter PlanUnsubscribe   Settings
Example based on a real SentryKit alert, with the product details changed.
[IT] Listing Suppressed (GPSR) — Lampada da scrivania LED, dimmerabile
S
SentryKit Alerts <alerts@sentrykit.com>
to you · 19:01
Compliance
Real-time
🛂
COMPLIANCE
Suppressed — Amazon needs GPSR information before this listing can sell
Lampada da scrivania LED, dimmerabile, 3 temperature di colore
ASIN: B0EXAMPLE2 · IT Marketplace
Enforcement
Listing suppressed
Error
Category
GPSR
Qualification required · code 100632
Detected
Just now
07:01 PM UTC
Amazon says:
To list this product, you must provide the information required to comply with our General Product Safety Regulation (GPSR) policy. Learn more at https://sellercentral.amazon.it/gp/help/GQAYBJPNAZ2LMDDT
IMMEDIATE ACTIONS
A
Add the GPSR details Amazon asks for — manufacturer and EU responsible person contact details, plus safety information, on the listing in Seller Central.
B
Check the same ASIN in your other EU stores — GPSR applies across the EU, so the same block often shows up in more than one store.
View in Dashboard →Open Listing Issues
⏱ Re-arms when Amazon clears the enforcement on this listing.
SentryKit · Pro PlanUnsubscribe   Settings
Example based on a real SentryKit alert, with the product details changed.
[DE] 🔴 Out of Stock — Edelstahl-Trinkflasche 750 ml
S
SentryKit Alerts <alerts@sentrykit.com>
to you · 09:20
Inventory Alert
Real-time
📭
INVENTORY ALERT
Product is out of stock
Edelstahl-Trinkflasche 750 ml, auslaufsicher, BPA-frei
ASIN: B0EXAMPLE4 · DE Marketplace
Fulfillable
0
Units at FCs
Transferring
0
Between FCs
Inbound
0
Not yet at FC
Fulfillable + Transferring = 0OOS · REAL-TIME
IMMEDIATE ACTIONS
A
Confirm inbound shipment ETA — no inbound detected; expedite replenishment or reduce traffic if ads are still running.
B
Place a new replenishment order if inbound is insufficient — every day without fulfillable stock is lost revenue.
View Inventory →Open Seller Central
⏱ Re-arms when stock returns. Stock Replenished fires on recovery.
SentryKit · Pro PlanUnsubscribe   Settings
Example based on a real SentryKit alert, with the product details changed. Alerts can also come in German.
[FR] 3 backend fields changed on B0EXAMPLE5 — Tapis de bain en bambou
S
SentryKit Alerts <alerts@sentrykit.com>
to you · 14:07
Backend Attributes
🧾
BACKEND ATTRIBUTE CHANGE · PDF ATTACHED
3 fields changed on this listing.
Tapis de bain en bambou, antidérapant, 60 x 40 cm
ASIN: B0EXAMPLE5 · FR Marketplace
Fields changed
3
Content, identity
Attribute groups
2
of 6
SKUs checked
122 of 124
This store
CONTENT
Title
item_name
Tapis de bain en bambou, antidérapant, 60 x 40 cm → Tapis de bain bambou 60x40
Bullet point 2
bullet_point
Séchage rapide, sans odeur → not set
IDENTITY & CLASSIFICATION
country_of_origin
PT → CN
📎 Full before and after for every field is in the attached PDF.
Download the PDFAlert settings
SentryKit · Pro PlanUnsubscribe   Settings
Example based on a real SentryKit alert, with the product details changed.
Fits how you work

For brands, resellers and agencies

Brands
  • Any other seller on your listing is flagged
  • Content and backend changes, before and after
  • Review and rating alerts
  • Monthly report of every seller on your listings
Resellers and wholesalers
  • Buy Box and competitor price alerts
  • Tag authorised, watch-list and ignored sellers
  • Stock and sales alerts
  • Fee changes and Fee Recovery
Agencies
  • Every client account under one login
  • Each teammate sees only their clients
  • Alerts filtered by brand and by store
  • API, webhooks and Google Sheets for client reports
SentryKit for agencies →
Pricing

One price, however many stores you sell in

We charge per seller account. One account covers the UK and every EU store, with unlimited ASINs.

  • Starter, $19/mo: 2 seller accounts
  • Pro, $49/mo: 5 seller accounts
  • 14 days free, no card
Many tools price per product, per marketplace. AMALYTIX, for example, counts one child ASIN in three marketplaces as three products, and its Essential plan covers up to 500 products for €69 a month. With SentryKit, adding Germany, France, Italy or Spain to the same seller account doesn't change your price.AMALYTIX pricing from amalytix.com, checked October 2026.
Starter
$19/mo
2 seller accounts. Every marketplace, unlimited ASINs.
Pro
$49/mo
5 seller accounts. Every marketplace, unlimited ASINs.
Start free trial →
Compare plans in full
Read reviews on G2 · Capterra · Trustpilot

Questions from UK and EU sellers

UK, Germany, France, Italy, Spain, Netherlands, Poland, Sweden, Belgium and Ireland, plus the US, Canada, Mexico, Japan, Australia, India and more.
No. One Seller Central account covers the UK and every EU store. See pricing.
Yes. Pick the marketplaces for each alert, or set a default. Each teammate can pick their own.
Yes. Alerts and reports come in English, German, French, Italian, Spanish, Portuguese, Dutch or Polish, chosen per teammate.
Email, Slack, Microsoft Teams, ClickUp, webhooks or our API. Real time, or as a daily or weekly digest.
Yes. Connect every client account, give each teammate access to their own clients, and filter alerts by brand. More on SentryKit for agencies.
No. It tells you what changed and why. It doesn't change your prices.

See every UK and EU store in one place

Connect your Seller Central account and get your first alerts today. 14 days free, no card.

Start free trial → See pricing