Lead Source Taxonomy
This guide provides a framework for organizing lead sources into a structured taxonomy to understand marketing and sales performance.
Three-Level Taxonomy Structure
The framework organizes lead sources hierarchically:
Level 1: Lead Source Grouping
Broad categories aligned with business functions:
- Sales
- Marketing
- Customer Success
- Referrals
Level 2: Lead Source
Specific sources tied to budgets:
- Events
- Paid advertising
- SDR outreach
Level 3: Lead Source Details
Granular channels and campaigns:
- Trade shows
- Customer events
- Prospect events
Audience Levels
Different stakeholders need different levels of granularity:
Executives
Benefit from high-level views showing whether leads come from:
- Marketing
- Sales
- Product-led growth strategies
Functional Leaders
Need mid-tier granularity to:
- Understand specific channels
- Adjust marketing budgets accordingly
Marketing Operations
Require the most detailed taxonomy to:
- Scrutinize the performance of individual channels
- Refine strategies based on funnel metrics
Core Principles
Two foundational requirements ensure an effective taxonomy:
Mutually Exclusive
Each source is distinct and unambiguous. A lead should only fit into one category at each level.
Comprehensively Exhaustive
Every lead has a specific place in the structure. No lead should fall outside the taxonomy.