What is Buyer persona?

The buyer persona explained simply

It is easier to write a letter to a friend than to “the general public”. You know what interests them, which words they understand and what questions they might ask.

A persona plays this role in marketing. It represents one specific person you speak to when you create an offer, a page, a piece of content or an ad.

Their first name and portrait can be made up. But their problem, their obstacles and their habits must rest on real observations. Otherwise, you create a character who is useful to your imagination, not to your business.

A concrete example

Imagine a coach who is preparing a home workout program. Her general target could be: “women aged 25 to 35 who live in cities and are interested in sport”.

This description helps define a group, but it doesn’t say which problem to solve or which message to use.

Target

• Women aged 25 to 35
• Live in cities
• Are interested in sport

Persona: Sarah, 29

• Nurse with changing shifts
• Rarely has long blocks of free time
• Wants to get active again without equipment
• Is afraid of getting hurt when restarting alone
• Looks for a routine that fits her daily life

With the target, the coach could write: “Discover our workout program”. With Sarah, she can explain: “A short routine, no equipment, that you adapt to your schedule”.

The second message speaks to someone. On one condition: real customers must confirm these constraints.

Why it matters to you

• Your message becomes more concrete. You talk about a problem people recognize instead of only presenting your product.
• You choose better channels. You look for where this person really gets information, without trying to be everywhere.
• Your offer holds together better. You connect the benefits, the proof and the answers to objections to a need you have observed.

A persona also helps you make choices. An offer can’t perfectly fit every situation. Defining your priority person forces you to decide who the product is designed for.

This focus doesn’t mean other people are banned. It gives your message a direction. A message meant for everyone often becomes too vague for anyone to recognize themselves in it.

In the Coodi method, the persona is also part of the ad concept: Concept = Angle × Offer × Persona. So changing the persona can change the problem you highlight, the proof you need and the tone of the ad.

How to create one

Start with six simple questions:

1. Who is this person? Give them a made-up first name, a situation and a context that matter for your offer.
2. What does their daily life look like? Find their constraints, their habits and the moments when the problem appears.
3. What problem do they want to solve? Describe a concrete difficulty, not a vague word like “succeed”.
4. What scares or blocks them? Write down their objections, their bad experiences and the risks they see.
5. What result are they looking for? Explain the change they expect in their life or work.
6. Where do they look for help? Identify the people, platforms, searches or communities they turn to.

To answer, talk to customers and prospects. Ask them to describe a real situation. “What happened the last time?” often gives a more useful answer than “Would you buy this product?”.

Also study the messages you receive, the questions before purchase, the reviews and the refund requests. Keep the words people use. They can reveal a fear or a goal that your professional vocabulary hides.

Always separate facts from assumptions. You can write “assumption: Sarah lacks time”, then look for evidence across several conversations. An assumption is not bad; it becomes dangerous when you present it as a certainty.

Finally, use the persona. Reread a page and ask yourself if Sarah understands the promise, recognizes her problem and finds an answer to her main obstacle. Update the portrait when new information contradicts your first version.

Common mistakes

• ❌ Inventing the perfect customer in your head. → ✅ Base the portrait on real conversations, messages and behaviors.
• ❌ Adding decorative details. → ✅ Keep only the information that affects the offer or the decision.
• ❌ Creating several personas from the start. → ✅ Start with your priority person.
• ❌ Confusing a persona with a stereotype. → ✅ Describe an observed context without assigning behaviors to a whole group.
• ❌ Filing the document away once it is done. → ✅ Use it to write, choose a channel and improve the offer.

With AI

Help me build a persona without turning my assumptions into facts.

My offer: [offer].
My current target: [target].
Here are anonymized extracts from conversations, reviews or questions:
[paste the extracts].

Organize the information with these six questions:
1. Who is the person?
2. What does their daily life look like?
3. What problem do they want to solve?
4. What fears or objections do they express?
5. What result are they looking for?
6. Where do they look for help?

For each conclusion, give:
- the evidence in my data;
- the level of confidence;
- what still needs checking.

End with three interview questions and three message angles.

AI sorts your information in a few minutes. It does not replace a real conversation with a customer.