n8n

n8n is the automation tool that rewards investment. The learning curve is steeper than Zapier or Make, but the ceiling is significantly higher — you can build genuinely complex logic, connect to almost any API, and run automations on your own infrastructure if data sovereignty is a concern. For advertising operations teams with the technical appetite, it can automate substantial parts of reporting, CRM management, lead routing, and internal alerting. The self-hosted option is relevant for agencies with data governance requirements around where automation data is processed. If you are doing anything more than simple tool-to-tool connections, this is where I would start.