Why your Shopify store isn't profitable (and how to fix it)

Revenue is climbing, orders are coming in, and somehow the bank balance isn't moving. It's the most common — and most demoralizing — problem in ecommerce. Almost always it comes down to one thing: you're looking at revenue, not profit. Here are the five places your money is quietly leaking.

1. You don't actually know your COGS

If "Cost per item" is blank on half your variants, every margin number you've seen is fiction. Cost of goods is usually the biggest line between a sale and profit, and it's the one Shopify only tracks if you fill it in. Start here — track COGS properly before anything else.

2. Payment fees and shipping are invisible

Each order quietly loses ~2.9% + €0.30 to your payment processor, plus whatever shipping you absorb. Free shipping isn't free — it's a cost you chose. Across hundreds of orders these "small" lines add up to real money that never shows in the sales report.

3. Refunds aren't netted out

A refunded order often costs you twice: the refund itself, plus the product and return shipping. If you measure profit on gross sales, refunds don't subtract — so your "profit" is overstated by your entire return rate.

4. Ad spend eats the margin you do have

This is the big one. A store can run a healthy gross margin and still lose money because profit after ads is negative. If your blended cost to acquire an order is higher than your contribution margin, every sale loses money — and scaling spend makes it worse, faster. Learn to read MER and profit after ads.

5. You're optimizing the wrong number

Most dashboards stop at gross margin, which looks great (60%+) and hides everything above. The number that decides whether to scale or kill a product is contribution margin — gross margin minus fees, shipping and refunds — and then profit after ads.

How to actually fix it

1. Fill in COGS for every variant.
2. Account for payment fees, shipping and refunds per order.
3. Pull in ad spend and read profit after ads, not ROAS.
4. Look at contribution margin per product — cut or reprice the ones that lose money.

That's the entire job, and it's exactly what Margeny automates: it connects your store and ad accounts and shows real profit per order, product and day — so you stop guessing why the numbers don't add up.