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How to build a marketing persona that is actually useful

A hands-on guide to creating buyer personas that are useful (not decorative). Start from your existing data, run 20 to 25 interviews, group by axes, then pick a primary persona and its customer journey. The result: content, offers and messages that hit the mark, and better-qualified leads.

Did you know? According to an ITSMA study, 71% of companies that exceed their revenue and lead goals rely on documented personas to guide their strategy.

Source: ITSMA - Increasing Relevance with Buyer Personas

  • ✓
    Gather your quantitative and qualitative data in one place
  • ✓
    Run 20 to 25 guided interviews with a ready-to-use template
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    Map 2 axes (e.g. Traditional ↔ Digital-savvy) to find clusters
  • ✓
    Name a primary persona + secondary ones and map the customer journey
  • ✓
    Take action: editorial lines, keywords, offers and simple KPIs
Download the full guide ↓
Persona building visual

In this guide

Chapter 1: Take stock of your existing data (quantitative and qualitative).

Chapter 2: Run 20 to 25 useful interviews (interview template and analysis axes).

Chapter 3: Group by axes, from the 2×2 map to consistent profiles.

Chapter 4: Choose the primary persona and map the customer journey.

Conclusion: From raw data to an actionable persona in 2 to 8 weeks.

🔗 Go further: Knowing your target customer is good. Knowing how to talk to them to close the sale is better! Once your personas are clear, train your teams to convert fast with a simple, effective sales pitch.

From theory to sales

A well-defined persona does not do everything. According to the Marketing Insider Group, using personas strategically can increase website conversion rates by 10% on average. But you still have to handle those leads properly!
Source: Marketing Insider Group

If sales effectiveness speaks to you, we recommend reading our article explaining why centralizing your sales management always pays off.

Once your personas are clear, make sure you have the right tools to track your opportunities by visiting our page on CRM and sales management with Odoo.

They put it into practice

Real feedback after rolling out personas that are actually useful.

Camille R.
Marketing Manager

“25 interviews + grouping by axes: our content finally answers the real questions. Our leads are much better qualified.”

Lucas M.
SME CEO

“Defining a primary persona clarified our whole roadmap. Less hesitation internally, and more sales and SEO impact.”

Sonia T.
Growth Hacker

“In 6 weeks, we linked our persona to the buying journey and to our KPIs. We finally know what to produce and what to measure.”

🔗 Go further: Knowing your audience is the starting point. Feeding it quality content is the next step! Discover the IRM method: 3 simple steps to create high-impact content and structure your editorial line.

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Frequently asked questions (FAQ)

Short, actionable answers built for the field.

A semi-fictional portrait based on real data (quantitative + qualitative) that guides your messages, offers and distribution channels. It is there to support business decisions, not to decorate your office.
Aim for 20 to 25 one-on-one interviews from a representative sample of 50 to 60 people. Beyond that, the insights tend to repeat themselves (data saturation).
Focus on: professional context, buying triggers, objections, final selection criteria, how they research information, and write down the exact words they use. The guide includes a ready-to-use interview template to keep things concise.
Both are essential: the numbers (analytics, CRM) show the scale of the phenomenon, while verbatims (interviews, customer support) explain the “why”.
Identify the cluster that is most represented in your customer base AND most aligned with the profitability (ROI) of your offer. The other profiles become your secondary personas.
Plan for 2 to 8 weeks. It depends heavily on your industry, how easily you can access your existing data, and how available the people you want to interview are.
For each stage of the buying cycle (discovery → evaluation → decision), list the questions the persona asks, the channels they use, the content they need, the social proof they expect and the call to action. You end up with an obvious editorial roadmap.