Add or update waiting list entries from form

Waiting list form submissions can duplicate or be missed, leaving coordinators without a reliable intake. It logs or updates each signup and sends confirmation so coordinators can act same day.

Overview

Unreliable waiting-list intake causes duplicated outreach and missed opportunities. This flow ensures each signup is recorded or updated and a confirmation is sent, giving program coordinators clean, actionable data within minutes. That lets outreach proceed confidently the same day.