Vendooly
// Diagnosis

Sales dropped. Now find out why, not what it might be.

Every guide lists the same six causes. None of them can tell you which one hit your account last Tuesday. That answer is in your data — across sessions, Buy Box status, stock levels, price position and ad spend — and pulling it together by hand is an afternoon. Connected, it is a question.

You"Sales are down about 30% since the 12th. What changed?"
Assistant via VendoolyCompares the period against the previous one across sales, stock, Buy Box, price and ads — and reports which causes the numbers support.
You decideRestock, un-pause, reprice — each proposed change shown before it happens.
Your data · your conclusion
The six causes

Each leaves a different fingerprint.

Knowing the list is not the hard part. Matching it to your account is.

Featured Offer lost

Traffic holds, orders fall on specific ASINs. A competing offer took the Buy Box, usually on landed price.

Stock

Out of stock, or low enough to lose the offer. Often affects a handful of SKUs that happened to carry the month.

Price position

You did not change price — the market did. Your relative position moved even though your listing looks identical.

Advertising

Budget exhausted mid-month, a campaign paused, bids cut, or a keyword lost placement. Traffic falls before orders do.

Listing health

A suppressed listing, a policy flag or a content defect quietly removing visibility.

Real demand

Seasonality, a competitor's promotion, a category shift. The only cause you cannot fix — worth identifying so you stop spending against it.

How to work through it

Separate traffic from conversion first.

01

Did fewer people arrive?

If sessions fell, look at advertising and visibility: exhausted budgets, paused campaigns, lost placements, suppressed listings.

02

Or did the same people stop buying?

If traffic held and conversion fell, look at the offer: Featured Offer status, price relative to competitors, stock and delivery promise.

03

Then narrow to the ASINs that matter

An account-level drop is usually a handful of products. Rank the decline by revenue lost, not by percentage, and work the top of that list.

Fixing, in the right order

Cheapest and most reversible first.

Free and fast

Restock what ran out. Un-pause campaigns that were working. Restore budgets that ran dry. These recover sales without costing margin.

Costs margin

Repricing works, which is why it is tempting first. Do it after the free fixes are ruled out — and see the proposed price before it goes live.

Slow but start now

Listing defects and account health issues can take days. Open them early even when they are not the main cause.

Ask it about last month.

Connect one seller account free and ask what changed. The evidence comes back with the answer.

Start free