Twelve n8n nodes, no connections. Click a node, then click where it should go. The catch: n8n has two kinds of connection and they are not interchangeable. Pick the wrong mode and the canvas will tell you why.
Click a node to start a connection.
Six real failures from this exact workflow. Read the symptom — an error, a bad email, a wrong answer — and make the fix call. One option repairs it. The other two are what people try first.