Ecommerce copywriting that sells: a simple guide for store owners

Ecommerce copywriting is every word a shopper reads on the way to buying: your homepage headline, collection page intros, product names and descriptions, bullets, button labels, cart messages and FAQ answers. Its only job is to help the right person feel sure enough to buy.

A shopper on your product page is already interested. They don't need to be dazzled. They need answers: What is it? Is it for me? What if it doesn't work?

And they won't read much. Jakob Nielsen of the Nielsen Norman Group looked at more than 45,000 page views and found people read about 20% of the words on an average page. So the 20% they do read has to carry the sale. Yet the words matter: in Baymard Institute's product page testing, every single user relied on the product description at some point to decide if a product suited them.

The rule we use at FunnelSpark, an ecommerce CRO agency for Shopify stores: clear beats clever, every time.

The best copy on most stores isn't written. It's collected. Your customers have already told you why they bought, what almost stopped them and how they describe your product. Your job is to find those words and put them on the page.

Most store owners write about the product they made. Shoppers want to read about the problem they have. Start from their words, not yours.

Here's where to look and what to pull out:

For the survey, 2 open questions on your thank-you page are enough: "What almost stopped you from buying today?" and "What would you tell a friend about this product?" After 50 to 100 answers, you'll see the same phrases come back. Those phrases are your copy.

Reviews do double duty. Of the 25 top stores we broke down page by page, 23 show ratings and reviews on the product page. Oh Polly goes further and adds ratings for fit, which answers the biggest worry when buying clothes online.

A store headline has one job: tell the right shopper, in a second or two, that they're in the right place. On a homepage or collection page, that means what you sell and why it's better for them. A simple pattern that works:

Notice what the subhead does. "Squat-proof" isn't a fancy word. It's the exact worry people have about gym leggings, answered in 2 syllables. That's what customer research gives you.

Clever headlines work for brands everyone already knows. If shoppers don't know you yet, a headline that makes them guess makes them leave. Getting visits but few sales? Start with our guide to traffic but no sales.

Most product descriptions describe the product. The ones that sell describe the shopper's life with the product. Here's an example we wrote for a made-up water bottle:

The "before" uses words every store uses: premium, high-quality, innovative. They don't tell the shopper anything they can picture. The "after" gives 3 facts the shopper can imagine, each tied to a moment in their day. (Only promise what you've checked. If your bottle keeps drinks cold for 12 hours, say 12.)

A simple structure for a product page:

Below the bullets, the longer description can cover the story, specs and care, in short labeled chunks. Baymard suggests structuring descriptions around roughly 2 to 6 key "highlights" rather than a wall of text. Accordions help too: 16 of the 25 top stores we broke down use accordions or tabs on the product page. Our product page optimization guide covers the rest of the page, and our FAQ page examples show how to turn support questions into answers that sell.

Bullets are the easiest copy to scan, so they get read. A feature says what the product has. A benefit says what that does for the shopper. The best bullets give both, in that order: the fact, then the "so what."

A quick test: read each bullet and ask "so what?" If the answer isn't already in the bullet, add it. "Breathable cotton" becomes "Breathable cotton, so you don't wake up hot."

Keep the tone plain. In a Nielsen Norman Group study, a version of a site written to be concise, scannable and objective scored 124% higher in measured usability than the promotional version. Hype words make shoppers work harder to find the facts.

Microcopy is the small text around your buy button: the label, the line under it, the note by the size picker. It's read at the exact moment the shopper decides, when the last worries show up: shipping cost, returns, "what if it doesn't fit?"

Of the 25 top stores we broke down, 12 show a guarantee or returns promise and 18 run an announcement or USP bar with their key promises. Here's microcopy worth testing on your store:

What about the checkout? Shopify's checkout is a single page by default, and adding your own text inside the checkout steps, near the pay button, needs Shopify Plus. On other plans, the product page and the cart are your last places to reassure. If you use badges near the button, keep them few and real: here's what we found on trust badges.

These are our own examples for made-up products, not tests from real stores. Use them as patterns, then fill in your facts and your customers' words.

You test it. Copy feels like a matter of taste, which is why teams argue about it. An A/B test settles it: half your visitors see the old words, half see the new ones, and you compare orders and revenue per visitor.

Expect surprises. Across 1,000+ A/B tests, 37% of ours have won, against an industry average of about 15%. Most ideas don't beat what's already there, which is why we start with customer research.

Low traffic? Proving a 10% lift at a 2% conversion rate takes about 161,000 visitors. With less, show your new copy to 5 people who match your customer and ask them what the product does and what would stop them buying. Then watch faster signals like your add to cart rate. Our guide to ecommerce A/B testing shows how to set up a test, and our intro to CRO explains where copy fits in the bigger picture.

Start with the page that gets the most traffic and drop-off, usually your best-selling product page. Our free Leak Finder walks you through 20 checks from homepage to checkout to find it.