Lesson 9 of 30 · 9 min
Segmentation that changes decisions
A segment only earns its place if it makes you act differently.
The test is whether anything changes
If two segments get the same channels, the same message and the same budget, they are one segment with extra slides. A real segment changes at least one decision: what you say, where you say it, or how much you spend.
Needs and occasions beat demographics
People buy differently depending on the job they are hiring the product for. Someone booking a last-minute work trip and someone planning a family holiday may share every demographic and need completely different messages.
Segments must be reachable to be useful
A beautiful segmentation that no platform can target is a research finding, not a media plan. Before committing, check that each segment maps to signals you can actually buy — otherwise it cannot leave the slide.
Fewer, bigger segments usually win
Every extra segment splits budget, creative effort and data. Three well-funded segments almost always outperform nine starved ones, because each has enough delivery to work and enough volume to be read.
Takeaway
Keep a segment only if it changes a decision and can actually be reached.
Check yourself
No score, no signup — pick an answer to see why it's right.
Question 1
Two segments receive identical channels, messages and budgets. What should you do?
Question 2
Why do fewer, larger segments usually outperform many small ones?