Marketplace seller support
「Riding on someone else's revenue」
You do not sell the goods. You take work off the seller's hands and get paid for that — no stock, no shipping.
Take over the listing, product-page and keyword work a seller repeats every week. In a 2026-08-20 count on Kmong, this term carried the largest total review volume of everything measured, though at a low list price.
- Difficulty
- 2/5
- To first revenue
- Listing takes a day. Time to first order is not something we estimate — we have no sample.
- Startup cost
- ₩0~50,000
- Coding
- not needed
- Sales
- some
- Automation
- 4/5
We have zero cases with a verified earnings figure, so we do not invent a revenue range. What follows instead is arithmetic on published prices and official fee rates.
Where the money goes
- What the customer paysThis is the revenue you report
- − marketplace and payment feesDeducted if you sell through a platform
- = what lands in your accountA different number from revenue
- − VATIf you are a registered business
- − tools, rework, your own hoursThe line people forget
- = what you keepOnly this counts as earning
We have not yet verified a published price for this model. So there is no revenue or profit figure here — not because the arithmetic is hard, but because we have nothing real to put in it.
The structure is the same as the flow above: fees and tax come out of what the customer pays, then tool costs and your own hours come out of what is left.
Who you sell to
- Marketplace sellers
- Dropshippers
- Small brands
How the money comes in
- Per-listing fee
- Monthly retainer
Steps
- Pick one thing the seller repeats weekly — new listings, product pages, keywords
- Do ten of them by hand and time each one
- Draft the same work with AI, time it again, and write down the difference
- List the smallest possible scope. Do not open with «full store management»
Risks
- The price is low. Without volume, the hourly rate does not hold
- A platform policy change can close your method overnight
- When the seller's revenue dips, this line item is cut first
- Leading with «AI» reads worse, not better — the same count found the AI-labelled variant selling far less
Do this today
- Write down three things a marketplace seller repeats every week
- Do one of them by hand and time it
- Draft the same thing with AI, time it, and put the two numbers side by side