How to write copy that sells
Headlines, benefits, proof and calls to action, with simple formulas you can use for posts, ads and websites.
In this article
- Step 1: Know who you're writing for
- Step 2: Write a headline that earns attention
- Step 3: Sell benefits, explain features
- Step 4: Add proof
- Step 5: Handle objections
- Step 6: End with a clear call to action
- Simple copywriting formulas
- Writing for different channels
- Editing: where good copy is made
- Writing in Swahili and English
- Before and after: rewriting real-world copy
- Words that weaken copy
- A quick copy checklist
- Your plan for this week
- Common copywriting mistakes
- Frequently asked questions
To write copy that sells, start with your customer's problem instead of your product, write a headline that promises a clear benefit, explain how your product delivers that benefit in simple words, back it up with proof like reviews or results, and end with one clear call to action. Keep sentences short, use the words your customers use, and cut anything that doesn't help them decide. Good copy sounds like a helpful person talking, not like an advert.
Copy is any writing meant to make someone act: website text, Instagram captions, ads, emails, SMS, flyers, product descriptions, WhatsApp messages. Most small businesses write copy every day without thinking of it that way. A few simple principles make a big difference to how many people respond.
Step 1: Know who you're writing for
You can't persuade someone you don't understand. Before writing, think about one specific customer:
- What problem are they trying to solve?
- What have they already tried?
- What worries them about buying?
- What words do they use to describe the problem? (Read their messages and reviews.)
- What would make them say yes today?
Write as if you're talking to that one person. Copy written for "everyone" usually connects with no one.
Step 2: Write a headline that earns attention
The headline (or the first line of a caption, or an email subject) decides whether people read anything else. Good headlines are specific and promise something the reader wants.
| Weak headline | Stronger headline |
|---|---|
| Welcome to our website | Business websites live in about a week |
| Quality cleaning services | Office cleaning in Dar es Salaam, done before you arrive |
| New products available | Five school bags that survive a whole year |
| Best prices in town | Fresh fish delivered same day, from TZS 12,000 a kilo |
The examples use made-up prices. Specific numbers, places and outcomes make headlines believable.
Step 3: Sell benefits, explain features
A feature is what your product is or has. A benefit is what it does for the customer. People buy benefits, then use features to justify the decision.
- Feature: "5000mAh battery." Benefit: "Lasts all day, even on long commutes."
- Feature: "Mobile-first website design." Benefit: "Customers can find your prices and message you from their phone in seconds."
- Feature: "Same-day delivery." Benefit: "Order at lunch, wear it tonight."
A useful trick: after each feature, ask "so what?" The answer is the benefit.

Step 4: Add proof
People are sceptical of claims. Proof makes them believable. Use whatever you honestly have:
- Customer reviews and testimonials, with names if customers agree.
- Numbers: years in business, customers served, orders delivered.
- Before and after photos.
- Case studies with real results.
- Guarantees: refunds, free replacements, satisfaction promises.
- Logos of clients you've worked with, with permission.
Never invent reviews or numbers. Customers can usually tell, and it destroys trust.
Step 5: Handle objections
Every customer has reasons not to buy: price, trust, timing, doubts about whether it will work for them. Good copy answers those reasons before they're asked. If people worry about delivery, explain your delivery clearly. If they worry about price, explain the value or offer a payment plan. An FAQ section on your website is a great place for this.
Step 6: End with a clear call to action
Tell people exactly what to do next, and make it easy. "Send 'PRICE' on WhatsApp", "Book your free call", "Order before 2pm for same-day delivery". One call to action per piece of copy works better than several competing ones. Add a reason to act now if it's honest, like a deadline or limited stock.
Simple copywriting formulas
Formulas help when you're stuck. Two that work for almost anything:
Problem, agitate, solve
Name the problem, show why it's painful, then present your solution. "Losing customers because nobody answers WhatsApp after 6pm? Every missed message is a sale going to a competitor. Our auto-reply setup answers instantly, day and night."
Before, after, bridge
Describe life before, life after, and how your product gets them there. "Before: hours copying orders from chats into a notebook. After: every order in one list, paid and labelled. The bridge: WhatsApp Business set up properly in one afternoon."

Writing for different channels
| Channel | Tips |
|---|---|
| Website homepage | Clear headline, short benefits, proof, one main button |
| Instagram caption | Hook in the first line, short lines, one call to action |
| Facebook or Google ad | Benefit and offer in the headline, specific details, clear action |
| Specific subject line, personal tone, one main link | |
| SMS | Who you are, the offer, deadline, action, under 160 characters |
| Product description | Benefits first, then specs, sizes, care and delivery details |
Editing: where good copy is made
Write the first draft quickly. Then edit it. Cut words that don't add meaning, replace jargon with plain words, break long sentences in two, and read it aloud. If it sounds awkward spoken, it reads awkwardly too. Ask someone from your target audience to read it and tell you what they understood. If they can't explain your offer back to you in one sentence, rewrite it.
Writing in Swahili and English
Write in the language your customers think in. For many local audiences that's Swahili, or a natural mix. Don't translate English copy word for word. Write it fresh in Swahili, with local phrases and examples. If you serve both groups, test both and see which gets more responses.
\nBefore and after: rewriting real-world copy
Here are three common pieces of copy, rewritten using the steps above. The businesses are made up, but the problems are ones we see every week.
An Instagram caption
Before: "New arrivals in store. Quality and affordable. DM for more info."
After: "Linen shirts that stay cool on the hottest Dar afternoons. Five colours, sizes S to XXL, TZS 45,000. Delivery in Dar within 24 hours. Send 'LINEN' on WhatsApp to order."
A website headline
Before: "Welcome to ABC Accounting Services, your trusted partner."
After: "Bookkeeping and tax filing for small businesses in Dar es Salaam. Fixed monthly fee, no surprises."
An SMS
Before: "Dear customer, we are pleased to inform you of our promotion."
After: "KIBO SALON: 20% off braids Mon to Thu this week. Book on WhatsApp 07XX XXX XXX. Reply STOP to opt out."
In each case the "after" version is specific, says who it's for, gives a reason to act and tells people exactly what to do.
Words that weaken copy
| Instead of | Try |
|---|---|
| Quality products | Say what makes them good: "hand-stitched leather" |
| Affordable prices | Show the price |
| We are the best | Show proof: reviews, results, years |
| Contact us for more information | "Send 'PRICE' on WhatsApp" |
| Solutions | Name the actual thing you do |
| World-class | A specific fact that shows it |
A quick copy checklist
- Does the first line make the right person want to keep reading?
- Is it clear who this is for?
- Is there at least one specific detail (price, place, time, number)?
- Have you shown a benefit, not just features?
- Is there proof?
- Is there one clear call to action?
- Could you cut 20% of the words without losing meaning?
Your plan for this week
- Pick your homepage headline and rewrite it using the tips above.
- Rewrite your Instagram bio with a clear benefit and call to action.
- Collect five real customer phrases from reviews and messages.
- Use one of them in your next post.
- Read everything aloud before you publish.
Common copywriting mistakes
- Talking about yourself before the customer's problem.
- Vague claims with no proof.
- Several calls to action competing for attention.
- Long paragraphs that are hard to read on a phone.
Frequently asked questions
What is copywriting?
Copywriting is writing meant to make people take an action, like buying, booking, calling or signing up. It includes ads, websites, captions, emails, SMS and product descriptions.
What makes a good headline?
A good headline is specific, promises a clear benefit and speaks to what the reader wants. Numbers, places and outcomes often help.
What is the difference between features and benefits?
Features describe what a product is or has. Benefits describe what it does for the customer. Lead with benefits and use features as support.
How long should marketing copy be?
As long as it needs to be and no longer. Short copy works for simple, cheap products. Expensive or complex decisions often need longer copy with more proof.
Should I write my marketing in Swahili or English?
Use the language your customers use. For many local audiences that's Swahili or a mix. Write it fresh rather than translating word for word.
Can AI tools write my marketing copy?
They can help with first drafts and ideas, but edit carefully. Add real details, proof and your own voice, and remove generic phrases that make copy sound the same as everyone else's.
How do I write copy for a product I don't think is exciting?
Focus on the customer's problem and the result. Even simple products become interesting when you show how they make someone's day easier.
What is a call to action?
A call to action tells the reader exactly what to do next, like 'Send PRICE on WhatsApp' or 'Book your free call'. One clear call to action per piece usually works best.
Cover photo: Monstera Production on Pexels


