Add new members to segmented welcome mailing lists

When member signups arrive via your webhook, new subscribers sometimes remain unsegmented and miss onboarding messages. The workflow adds members to the correct list and sends a welcome email same day.

Overview

If member signups don't land in lists, welcome messaging stalls and segmentation breaks. This flow captures webhook signups into the right mailing lists and sends the correct welcome within minutes, enabling marketing ops and membership coordinators to start onboarding same day.