Workflow automation is the plumbing of modern work. A trigger in one app starts actions in others: when a form is submitted, add the contact to the CRM, notify the team channel, send the welcome email. Zapier, Make and n8n are the household names; they connect thousands of apps through their APIs without you writing code.
AI supercharged this. A step in the middle of a workflow can now think: summarise the enquiry, draft a reply, classify the lead, extract what matters from the attachment. That turned automation from moving data around into actually processing it, and it is a big part of what people mean when they talk about AI agents doing real work.
Why you keep hearing it
Because "AI automation" content is everywhere, and n8n in particular became the darling of the build-it-yourself crowd (it is open source and endlessly flexible). Every second YouTube tutorial promises an automated business built from these tools.
What it means for you
Marketing runs on repetitive, rule-shaped work: lead routing, reporting, content publishing, enquiry handling. That is exactly what these tools eat. Start by writing down one process you repeat weekly, then automate that one. Skip the 47-step workflows from YouTube until the boring one works.