Add contacts from folder CSV to campaign list

CSV signup files in Box aren't added to your campaign list, leaving registrants un-nurtured and delaying outreach. Adds subscribers to the configured campaign list so they enter nurture same day.

Overview

When CSV signups sit in storage they never make it into audiences, and campaign managers scramble to import lists before sends. This flow parses each file and adds subscribers directly to the campaign list, so registrants appear in the audience within minutes and nurture can start same day.