Add contest form signups to newsletter subscriber list

Your contest signups often bypass the newsletter list, leaving entrants unsegmented and outreach inconsistent. Campaign managers get entrants added with double opt-in enabled, enabling inclusion same day.

Overview

When contest entrants don't reach your newsletter list, segmented outreach and reporting suffer. This flow captures only consenting entries and records double‑opt‑in so campaign managers can include entrants in outreach the same day.