You work twelve-hour days and the store doesn't move. It's not you, and it's not the ads

Vladislav Matrosov, founder of GetProfit. September 10, 2026.

What follows took me several years to arrive at: first with my own store, then through breaking down hundreds of other people’s. One idea, four steps, and numbers I couldn’t have gotten until I collected data on a hundred stores at once.

The short version: an online store should be grown primarily through its assortment. Not through ads, not through the website, not by switching agencies — through what sits on your shelf. Everything else works only after that, and only together with it.

Get a free breakdown of your catalog. We’ll show you which products burn budget without a single sale, what share of your catalog never gets shown at all, and where the items you never tested are sitting. A standalone audit of this scope runs from $500 — ours is free, and access is read-only: we change nothing in your account. Get the breakdown →

Who this won’t help

• If you don’t run an online store but sell services, courses, or SaaS — this is all about physical shelves, suppliers, and stock. It doesn’t transfer.
• If you’re looking for a setting that fixes everything. There isn’t one, and below I show why.
• If you have fewer than 50 orders a month. Your job right now is finding what sells at all — that’s half of the work described here, but without the other half.

A day you’ll recognize

You want to earn more. That’s the only thing you actually want from the store.

And you don’t know what to grab hold of.

You open a product page: maybe change the photo? Rewrite the description? You close it without changing anything. You message a supplier — maybe they’ll give a better price, or something new. You open a report: five items are selling, twenty are sitting dead. Why those five and not those twenty? No idea.

You remember that a couple of products carry double the usual margin, and you think: I wish those sold more. You try to nudge them somehow. Nothing happens.

By evening you open the ad account. Yesterday was worse than the day before. You adjust something — mostly so you’re not sitting on your hands.

Tomorrow it repeats.

And the worst part of that day isn’t the fatigue. The worst part is that you work hard and honestly, and the store doesn’t move. Second year running, roughly the same money. You’re not lazy, not coasting, not slacking — you’re grinding. And going nowhere.

That’s when you start thinking it’s you. That other people know something you don’t.

They do. And I didn’t either.

I know this day firsthand — I had my own online store, and I ran it for a long time. I asked myself all these questions for years. No answer came, because I was looking where it wasn’t.

The part that stung came later. When I’d broken down hundreds of other stores and saw that almost everyone makes the exact same mistake — and that it had cost me several years, years in which the store could have grown severalfold.

What I tried instead of an answer

Improving the ads. Makes sense: sales are low, so the advertising must be bad. Settings, bids, campaign structure. Something would work for a month or two, then everything came back to where it was.

Switching agencies. Each new one arrived, rebuilt the campaigns, asked me to wait out the learning period. A quarter later revenue was in the same place. I thought I was unlucky with people.

Expanding the assortment. More products, more chances to sell — the logic is airtight. Later, with data in hand, I tested that logic across 144 expansion events, and it didn’t hold: at a fixed budget there’s no relationship between a growing shelf and growing revenue.

Working on the site. Design, product pages, speed, checkout. All of it matters — but more on that below, where there’s an important caveat about order.

All four attempts had one thing in common: I was working on how the things already on the shelf sell. And never once asked whether the right things were on it.

Grow the store through assortment first

This is the article’s central claim, and I’ll state it without softening.

An online store has one primary growth lever — the assortment. Everything else is secondary: ads, website, agency, analytics, support. Not useless — secondary. Meaning it works only after, and only alongside, what you put on the shelf.

If the shelf stays the same and you do nothing with it, there will be no meaningful jumps. You can improve the ads and get twenty percent. You can lift site conversion and get some more. But that’s improving the same set of products — and that set is finite.

The reason is simple. Ads show people what you have. The site helps them buy it. Support answers questions about it. None of those tools creates what you sell. Only you do — when you decide what appears on the shelf tomorrow.

So the order is: assortment first, everything else after. And swapping that order is expensive: you’ll spend months improving the display of a product you shouldn’t have bought.

Here’s what it looks like in numbers. We took a hundred stores with a full thirteen months of data, compared the first three months to the last three, and calculated one thing: what share of today’s revenue comes from products that didn’t exist at the start.

We checked this three ways, because the first thing that comes to mind is “they just spent more on ads.”

Not the budget. We split stores by what they did with spend and calculated the relationship inside each band separately. It holds everywhere: among those who cut spend, those who held it, and those who raised it. The share of new products barely correlates with spend growth at all.

Not arithmetic. You could object: if revenue grew, the share of new products grows on its own. But among the stores that doubled, revenue from old products grew too — to 126% of baseline. New products stacked on top rather than replacing what fell. Among decliners it’s the reverse: the old collapsed to 28%, and the new didn’t cover it.

Not volume. Declining stores introduced nearly three thousand new items over the year — three times more than the ones that doubled. And got half the return. Everyone can add. Almost nobody selects.

Why almost nobody does this

Across years of breakdowns I’ve seen the same thing: owners don’t work on their assortment because they don’t know it’s something you can work on.

And I say that without any superiority — I was exactly the same for every year I ran my store.

It isn’t laziness or lack of time. People simply don’t hold the concept. The assortment feels like a given: this is what the supplier has, this is what we sell. Not an object of management with its own rules, rhythm, and system.

Nobody teaches it. There are a hundred thousand articles online about ad settings and almost nothing about what belongs on the shelf in the first place. So the owner goes where instructions actually exist — into the ad account. And turns knobs for years.

Let me be precise about what I mean. Every shelf changes — products come and go on their own. The tail of the assortment, items with one or two orders a month, turns over 75% every month. The question isn’t whether your shelf changes. The question is whether anyone is steering it, or it just happens.

The difference between “changes” and “is managed” is exactly the difference between 26% and 47%.

The system: the shelf cycle

Working on assortment isn’t inspiration or luck with a supplier. It’s a system you run continuously. Four steps, and they go in this order.

Step 1. Deepen what already sells

Microwaves took off for you. Not “home appliances” broadly — microwaves specifically, those get orders.

That’s a signal: you found a pocket of demand where competition lets you operate. Now you work that pocket.

You add microwaves at other price points — cheaper and pricier than the ones selling. You add different models at the same price. You watch what takes off.

This is the safest step, because you’re going where demand is already proven by your own sales.

Common mistake: deciding that “microwaves took off, so let’s do more home appliances” and bringing in refrigerators. That’s not deepening, that’s step 3, and it comes later and deliberately.

Step 2. Complement with what pairs

To the microwaves you add what people buy alongside them: stands, microwave-safe cookware, cleaning products, extended warranty.

The point isn’t the accessories themselves. The point is that this raises order value without requiring new traffic. The person already arrived, already chose, already intends to pay — the only question is how much.

And order value is half the return-on-ad-spend equation. It also raises your ceiling on cost per click: with a higher average order, you can pay more for the same customer than your competitor and still stay profitable.

Margin work lives here too. Some products sell well and return pennies. Others sell less often with excellent margin. Knowing that, you move budget: trim here, add there.

The owner of an auto parts store put it on a call better than I could:

“Anything discounted more than 7% leaves no margin at all”

He worked out his own discount threshold past which a product runs at a loss, and simply stopped letting those items into advertising. That’s margin work — not a forty-column spreadsheet, but one number you know about your own store.

Let me be straight: margin appears in no ad report anywhere — the ad account physically doesn’t know it, because you never gave it. That data exists only with you, and getting it into your decisions is a separate job.

Step 3. Test new categories

Once what works is deepened and complemented, it’s time to move past its edges.

And here’s where the sharpest difference showed up between stores that grow and stores that fall.

We calculated where stores introduce new items: into categories where they already had sales, or into ones where they had nothing.

Seven times less often. It’s the only place where the two groups diverge in behavior rather than in outcome.

The logic is clear: any pocket of demand is finite. You deepened microwaves, took what was there — growth slows. If by that point you haven’t started trying new things, you hit a ceiling you built yourself.

But no fanaticism here either. A new item’s hit rate is roughly 4%: out of a hundred new products, four will sell. In a category with prior sales the rate is higher than in a fresh one. So new directions aren’t a replacement for step 1 — they’re an addition to it.

Step 4. Select

The most skipped step, and the most important.

Everyone can introduce new products. What comes next is understanding which of them worked, keeping the winners, and removing the rest. Without that the shelf bloats: more and more items, budget spread thinner, and at some point a new product no longer gets enough impressions to prove itself.

Remember the number: declining stores introduced three times more new items than the ones that doubled, and got half the return. They did steps 1 through 3 and skipped the fourth.

And the bigger the store, the sharper this gets. Here’s how it sounded on one call:

“There are a lot of products and going through them by hand is very hard — 37,000 items”

Thirty-seven thousand items don’t get reviewed by eye. And when reviewing is impossible, usually nothing gets reviewed at all.

To select, you need a measuring instrument. That instrument is your advertising.

Without ads you don’t know why a product isn’t selling: it’s bad, or nobody ever saw it. Advertising gives every product a chance to appear in front of your audience — and only then does the absence of sales become information instead of a mystery.

Hence the practical question the whole job starts from: which products get budget at all, and which never see a cent? Usually it turns out a third of the catalog was never shown to anyone — and every conclusion about those products was reached blind.

The order this gets done in

The usual objection: what about the site, the design, the product pages, support, checkout?

All of it matters. A store with a bad site loses buyers for nothing, and at a certain level that becomes the main growth point.

But that is work on how the things already on the shelf sell. Improve a product page and you lift conversion on that product. If the product is wrong — you’ve simply sold the wrong thing better.

The order is this, and it isn’t up for debate:

1. Assortment — what’s on the shelf at all, and whether it’s being refreshed
2. Exposure — does anyone see it, does budget reach every product
3. Customer experience — site, product pages, support, checkout

The third without the first two is polishing a window display with the wrong goods in it. The second without the first is reliably delivering unneeded products to the right people.

And yes, I know why everyone starts from the third: it’s more pleasant. You can swap a photo on a product page today and see the result of your work immediately. Working out that half your shelf hasn’t sold in a year is dull, slow, unpleasant work — because what surfaces there are your own past buying decisions.

But the growth is right there.

The first two points can be checked in half an hour, and not by you. Our breakdown highlights the key problems: where budget drains away, which products get no impressions, what in the catalog is stopping your ads from working. The thing agencies charge $500 and up for and take weeks to deliver. Check my store →

Where this all ends up

Every store eventually finds its niche — a direction where it’s somehow stronger than everyone else. Not because it has better ads or a prettier site.

Because it has assembled a shelf nobody else has.

That shelf doesn’t assemble in one go. It assembles through the cycle: deepened, complemented, tried something new, selected. Year after year. And two years later you’re selling something other than what you started with — which is exactly why you’re growing.

What that looks like from the inside was best put by one store owner himself, once the cycle was running:

“From our side we can see sales starting on products that never used to be bought”

He wasn’t describing any methodology. He just noticed that people had started buying what used to sit there.

Indirect confirmation sometimes arrives from an unexpected direction. Google itself told one of our clients — a large Czech store — that they had begun testing noticeably more products than before. Nobody set that as a goal. It’s simply that when a shelf is refreshed systematically, it shows even from the outside.

Objections

“I have 37,000 products, I physically can’t do this.” By hand you can’t, and you shouldn’t. At that volume you manage groups, not products: the shelf gets cut into parts and rules are set for the parts. Once, not every day.

“My niche is narrow, there’s nowhere to expand.” Steps 1 and 2 work in any niche — you can always deepen and complement. Step 3 genuinely isn’t available to everyone, and that’s fine: three steps out of four beat zero.

“This takes time, and I need money now.” Budget works fastest: raise spend, revenue grows — the relationship is direct and strong. But that’s scaling the same shelf, and it runs into that shelf’s ceiling. Assortment is the second lever, independent of the first. The first pays quickly; the second pays for a long time.

“This sounds like an ad for your service.” Half this article is data that refutes what I believed myself: expanding the shelf doesn’t move revenue, we tested it and said so plainly. Everything described here can be done by hand, without us — that’s exactly how I started. It just takes longer.

What to do this week

First. Calculate one number: what share of last month’s revenue came from products that didn’t exist a year ago. Below a quarter and you’re in the declining group, whatever your ad account shows today.

Second. Find your working pocket — the direction where orders actually come in — and add five items to it. Not to a new category; to the working one.

Third. Check what portion of your catalog gets no impressions at all. Everything sitting there, you’ve been judging blind.

I ran my own store and knew none of this. I worked on ads, on the site, on suppliers — on everything except the one job that actually moves a store. If someone had shown me this article back then, I’d have gained several years.

So if you just recognized yourself in that day — don’t take it hard. You’re not a bad entrepreneur and you’re not slow. Nobody told you where the growth actually sits.

Now someone has.

Every shelf changes. The only difference is whether you’re steering it — or it changes on its own while you turn knobs every evening and hope.

Start with the third point — it’s the fastest. Our breakdown shows which products spend your budget without a single sale, what share of your catalog is shown to nobody, and where the untested items are sitting in it. An audit like this runs from $500 — ours is free, takes half an hour, read-only access: we change nothing in your account. Break down my catalog →

Related reading: How assortment management lifted ROAS from 243% to 650% — a breakdown of one specific store where this same work was done together with us.

Vladislav Matrosov — founder of GetProfit. Figures in this article come from our own research on online stores in Ukraine and Czechia, observation window June 2025 — June 2026, one hundred stores with complete thirteen-month data. Where personal experience is cited, it’s stated as such.