Add live contact sources to WhatsApp campaigns

When you create a WhatsApp campaign for a text agent, the contacts step offers four sources: upload a CSV or XLSX file, or sync contacts live from a Google Sheet, a HubSpot list or a webhook URL. Variable mapping uses the columns of the connected source. The campaign's Connections tab lists its live sources with Sync now, Pause, Resume and Disconnect, and disconnecting keeps contacts already imported.