You’re paying commissions
you don’t owe.
A few points of commission too many, on every sale. Challenging them takes time and strains your relationship with your account manager, so it gets let go. Synaps builds the case, carries it with you, and you are refunded on the next invoice.
Read-only. Nothing changes on your listings.
Commission audit · 6 of 6,412 products
Recoverable commission detected in this sample: €4,670 per month
| Product | Billed as | Actually is | Recoverable |
|---|---|---|---|
 Makita DHP484 drill | Billed as Professional tools at 15.45%, actually DIY & garden at 8.24%. Worth €1,240 per month. | ||
 Einhell cordless mower | Billed as Petrol garden machinery at 14%, actually Cordless garden tools at 9%. Worth €1,450 per month. | ||
 Kärcher K5 washer | Billed as Large appliances at 12%, actually Garden & outdoor at 7.50%. Worth €860 per month. | ||
 Philips Hue bulbs ×3 | Billed as Consumer electronics at 13%, actually Lighting & smart home at 8%. Worth €520 per month. | ||
 Dell 27-inch monitor | Billed as Professional IT at 13%, actually Monitors & peripherals at 8%. Worth €390 per month. | ||
| Varta 70Ah car battery | Billed as Industrial batteries at 12.50%, actually Car parts at 8.24%. Worth €210 per month. |
Audit complete: 6 products filed wrong
The problem
The category sets the rate.
Nobody checks the category.
What the channel files your product as on one side, what it actually is on the other. The gap between them is a rate you never agreed to, taken from every sale.
Billed as
-
Professional tools 15.45% -
Large appliances 12% -
Petrol garden machinery 14% -
Consumer electronics 13%
The overcharge
Taken on every sale, for as long as nobody looks.
-
A category you never chose
rate, not yours -
Charged on every order, for months
margin, shaved -
Days of your accountant proving it
time, spent arguing -
Or you let it go
revenue, written off
Actually is
-
DIY & garden 8.24% -
Garden & outdoor 7.50% -
Cordless garden tools 9% -
Tool accessories 8%
Every misfiled product is money the marketplace took by mistake. And nobody has the time to go and get it.
How it works
Connect. Build the case. Recover.
-
Step 1
Connect
Plug in your marketplace accounts and your commission reports. Read-only.
15 minutes. Nothing changes on your listings.
-
Step 2
Build the case
Synaps replays your commission history line by line and prices every gap (wrong category, wrong rate, wrong fee) with the evidence attached.
Every gap priced, in euros, per product and per channel.
-
Step 3
Recover
We take the case to the marketplace with you, and we do the back-and-forth. The money comes back as a credit on your next invoice.
You approve. We argue.
Beyond commission
Overcharging is just the beginning.
Once Synaps reads your sales and your invoices across every channel, the same engine finds every euro you are leaving on the table.
-
Assortment gaps
Products in stock that are listed nowhere. We find them, and we put them online.
-
Pricing gaps
You are losing the buybox by cents. We tell you where, against whom, and by how much.
-
Consistency gaps
Your channels contradict each other on price, content or stock. We reconcile them.
Every action tied to a number. Every number provable on your ledger.
Why Synaps
Built for serious sellers.
-
12 months
of commission history replayed on every audit
-
50+
channels audited, including Amazon, ManoMano, Cdiscount and Carrefour
-
200k+
products recategorised for a single seller, built for catalog scale
“We looked at it once. It wasn’t worth the time.”
That is the problem. The grid is contractual and a wrong line is a billing error. But proving it costs more days than anyone will spend, and the back-and-forth burns the relationship with your account manager. We spend the days, and we do the arguing.
How much were you overcharged?
Get a free commission audit. In days: every gap between the rate you are charged and the rate that applies, priced in euros, with the evidence to claim it back on your next invoice. No commitment.
Measure my overpayment