Designing a conversion system using tracking data, backend triggers, and real user behavior Introduction Journey builders in tools like HubSpot, Klaviyo, or Salesforce make it easy to visualize marketing flows. But what happens when the business logic gets too complex, or the platform can’t fully support the nuances of your funnel? That’s the challenge I faced with a B2C client who needed a custom journey framework—one that could react to user behavior in real-time, sync with backend systems, and trigger …