By the time a prospect contacts your company, much of the buying journey has already happened.

They may have searched Google, asked ChatGPT, read a Reddit thread, watched a practitioner on YouTube, downloaded a guide, consulted a peer or compared vendors on a review site. Each interaction helped shape what they believed about their problem and which solutions deserved consideration.

Most attribution systems capture only part of this journey. A form may credit organic search because that was the prospect’s last trackable interaction. It cannot tell you that a podcast introduced the problem, a colleague recommended your category, and three Reddit discussions helped the buyer create a shortlist.

Customer interviews can fill in those gaps.

In my work leading product marketing and interviewing customers at critical moments—from initial conversion and adoption to expansion and churn—I have found that the most useful interviews do more than identify where buyers spend time. They reveal how each channel influences a decision.

You can organize that research using the SERVE framework. It represents five questions buyers answer as they move toward a vendor:

• Situation Understanding: Do you understand my problem?
• Expertise: Can I trust your guidance?
• Relevance: Is your solution right for my situation?
• Visualization: Can I picture how this would help me?
• Evidence: What proof suggests it will work?

Here is how to use the framework to understand your demand generation channels.

Situation Understanding

Start by learning where customers first recognized or began investigating their problem.

Instead of asking, “Where did you hear about us?” ask customers to return to the moment when solving the problem became important:

• What was happening in the business?
• How did you initially describe the problem?
• Where did you go to learn more?
• What did you search for or ask?
• Which people or sources seemed to understand what you were experiencing?

A finance leader might initially search for “How to shorten the month-end close,” follow several CFOs on LinkedIn and read discussions in a finance community. These channels may not mention your company, but they help the buyer name the problem and decide that it deserves attention.

This research can also improve your messaging. Customers may describe their challenge as, “We spend the first week of every month chasing spreadsheet updates,” while vendors talk about “streamlining financial operations.” The customer’s language is often more useful because future buyers recognize themselves in it.

Expertise

Next, identify the channels buyers use to decide whose advice they trust.

Ask:

• Which experts, publications or communities did you consult?
• Whose opinions carried the most weight?
• What made a source seem credible?
• Did you encounter any advice that changed how you viewed the problem?

Different channels earn trust in different ways. A detailed article may demonstrate analytical depth. A podcast appearance can let buyers hear how an expert thinks. Thoughtful participation in a niche community can build more credibility than a polished advertisement.

One buyer may discover your company through search but become interested only after hearing your founder explain the problem on a trusted podcast. Search generated visibility; the podcast generated confidence. Your demand generation strategy should account for both.

Relevance

Visibility and credibility do not guarantee consideration. Buyers must also believe your solution fits their needs.

Interview customers about how they evaluated fit with questions such as:

• What requirements did you establish?
• Where did you look for possible solutions?
• Which channels helped you compare your options?
• What made you include or exclude a vendor?
• Did your company size, industry, use case or technology stack affect the shortlist?

This is where buyers often turn to category pages, review sites, comparison articles, peer communities and AI assistants.

For example, a buyer may discover three credible vendors through Google but use G2 reviews and Reddit comments to determine which one works best for a company of their size. If your content speaks mainly to enterprises, a smaller company may dismiss you even when your product could serve it well.

The interview reveals not only where buyers evaluated relevance but also which information they could not find.

Visualization

Buyers then need to picture what adopting the solution would look like.

Ask customers:

• What helped you understand how the product would work in practice?
• Which examples or use cases felt closest to your situation?
• Did you watch demonstrations, attend webinars or speak with peers?
• What questions remained unanswered before you contacted the company?

A product video might help one buyer understand the workflow. A webinar may show another how to involve their team. A community conversation may explain what implementation is really like.

These channels perform a different job from those that create initial awareness. They turn an abstract promise into a believable future. Interviews can show you where buyers currently make that leap, and where better demonstrations, templates or use-case content might help.

Evidence

Finally, determine where buyers look for proof with questions like:

• What evidence did you need before reaching out?
• Which reviews, stories, recommendations or results did you trust?
• Did you look for examples from companies similar to yours?
• Was there anything that nearly stopped you from considering us?

Evidence can come from customer stories, independent reviews, peer recommendations, analyst coverage or discussions inside private communities. The source matters because buyers naturally trust some forms of proof more than others.

Reconstruct the journey, not just the source

After each interview, map the channels the customer encountered against the five SERVE questions. Patterns should begin to emerge across interviews.

You may discover that LinkedIn helps buyers recognize the problem, podcasts establish expertise, comparison pages demonstrate relevance, webinars help buyers visualize success and peer communities provide the final evidence.

That is more actionable than assigning the entire opportunity to the last click.

The goal is to understand how channels work together to build enough confidence for a prospect to reach out. Customer interviews help you see that hidden journey and invest in the moments that move buyers forward.