Add completed order buyers to nurture and onboarding lists

Completed orders lack subscriber context, leaving marketing unable to send timely post-purchase messages. Add buyers to nurture lists so they receive onboarding and offers within minutes.

Overview

When orders finish, marketing needs buyer data in lists immediately to run onboarding and post-purchase offers. This workflow adds completed buyers to nurture and onboarding lists within minutes, ensuring campaigns run on schedule and buyers receive timely messages.