Add API-sourced contacts to the main newsletter audience

API-sourced subscriber records often arrive untagged or duplicated, causing segmentation gaps. Add and tag them automatically so campaign teams can run welcome flows the same day.

Overview

When API-sourced signups land without tags or status, campaign segmentation breaks and welcome flows stall. This flow captures, updates, and tags those subscribers automatically so campaign managers have complete audiences and welcome programs can run the same day.