ASGTG Partner

Your listings change without warning. Know the moment they do.

SentryKit watches your Amazon listings and account signals continuously and alerts you the moment one of them moves — with the before and after attached, so you can act on it instead of investigating it.

50+
signals monitored
9
groups, all plans
14
days free
Create your account →
No credit card Setup in about 2 minutes Cancel anytime
Why it matters

The expensive changes are the quiet ones

Nothing breaks loudly on Amazon. Revenue just starts arriving smaller, and the cause is already weeks old by the time anyone goes looking for it.

01

A competitor takes the Buy Box

Someone prices under you overnight. Sessions stay flat, conversions drop, and the weekly report shows it as a soft week rather than a lost Buy Box.

02

A listing gets suppressed

Search traffic to one ASIN stops. Caught the same day it is an edit. Caught three weeks later it is rank you have to rebuild from scratch.

03

A fee or a field moves

An FBA fee changes, or a title, image or category gets rewritten by someone who is not you. Margin erodes quietly until someone runs the numbers.

Coverage

50+ signals across nine groups

Every group is on every plan. There is no tier where monitoring is held back.

01
Fees & margin
FBA and referral fee movement on your ASINs.
02
Buy Box & pricing
Buy Box lost, competitor price moves, rotation.
03
Account health & policy
Movement on the metrics that decide eligibility.
04
Listing health & suppression
Suppressed and suspended listings, with the reason.
05
Product content & fields
Title, image, category and parent-child changes.
06
Reviews & feedback
New reviews and rating movement that matters.
07
Rank & visibility
Best Seller and Amazon's Choice badge changes.
08
Inventory & fulfilment
FBA and FBM stock drift before it is a stockout.
09
Competitors & hijackers
Unauthorised sellers appearing on your listings.

Read the detail on Buy Box lost, hijackers, suppression, or see every alert.

What sellers say

Rated 4.8 out of 5 on G2

★★★★★

"Reliable and powerful. The alerts land immediately — it catches everything across our catalogue without us having to check anything manually."

Maximilian A. · Founder, Small Business · G2
★★★★★

"The timeliness of notifications and the detail of 'before/after' changes. Excellent customer support."

Verified User · Small Business · G2
Pricing

Priced on storefronts, nothing else

ASINs, orders and marketplaces are unlimited on every plan, and every plan gets all 50+ signals.

Starter
$19/mo
Up to 2 storefronts. $15/mo billed annually.
Pro
$49/mo
5 storefronts, then a per-storefront ladder. $39/mo billed annually.

Full breakdown on the pricing page.

Questions

Before you sign up

What does SentryKit actually watch?

+

50+ signals across nine groups: fees and margin, Buy Box and pricing, account health and policy, listing health and suppression, product content and fields, reviews and feedback, rank and visibility, inventory and fulfilment, and competitors and hijackers. Every group is included on every plan.

Do I need to connect my Amazon account?

+

Yes. SentryKit reads your listings through Amazon's official Selling Partner API, which is what makes the alerts specific to your catalogue. It takes about two minutes during signup and you can disconnect at any time.

How is this different from checking Seller Central?

+

Seller Central shows you what happened once you go looking, and its Business Reports run on a delay. SentryKit tells you when it happens, without you looking.

Where do the alerts arrive?

+

Email, and Slack if you connect a workspace. You choose which signal groups you want, so a large catalogue does not become noise.

Is there a limit on ASINs?

+

No. ASINs, orders and marketplaces are unlimited on every plan. Price moves on one axis only, which is how many storefronts you run.

What happens after the 14 days?

+

Nothing automatic. No card is taken at signup, so the trial cannot roll into a charge. You pick a plan only if you want to carry on.

Start watching your listings today

14 days free. No credit card. Setup takes about two minutes.

Create your account →
14 days free No credit card Cancel anytime