Reach
01 Definition
Reach meaning: The number of distinct people or accounts exposed to content.
Reach estimates unique exposure while impressions count total deliveries including repeated views. Methods and identity resolution differ across platforms.
Also called
unique reach
Why it matters
How Reach fits the work
It shows how broadly a message was distributed without double-counting every repeat exposure.
In context
The campaign reached 120000 accounts during launch week.
Practical note
Platform reach is often modeled and should not be added across channels as if every person were unique.