This article looks at ecommerce marketing as a connected system, not a list of...

https://instaquoteapp.com/how-do-i-judge-channels-by-business-outcomes-not-vanity-metrics/

This article looks at ecommerce marketing as a connected system, not a list of separate campaigns. It explains how acquisition, conversion, and retention affect one another, and why teams should track CAC alongside AOV and repeat purchase rate