Add ex-member webhooks to deadline tracking for winback

Your lapsed member webhooks don't start deadline tracking, so time-limited winback offers miss former students. You enroll contacts into the deadline campaign so offers reach recipients within minutes.

Overview

Time-limited winback offers fail when lapsed students aren't enrolled quickly. This flow ensures every incoming webhook enrollment goes into your deadline campaign within minutes, so campaign managers deliver timely offers and reclaim missed purchases faster.