Marketing / Analytics
Bounce Rate bounce rate (two unrelated metrics: web-analytics bounce vs email bounce)
The same word names two unrelated things: in web analytics, the share of visits where the person left without engaging; in email, the share of messages that could not be delivered.
The fork, why two teams get different numbers
Same word, two disciplines, no overlap.
In the Metric Library
- The full fork, both definitions worked all the way through
- The trap that makes the number lie, on a real export
- Every formula variant, spelled out
- The reconciliation anchor, what to tie it to and when to refuse
Reference: Google Analytics 4 measurement documentation (reference) · email deliverability convention