Most lead intake automations work on the happy path. A form arrives, the workflow sends an email, and the lead appears in a CRM. The expensive failures happen at the edges: the same webhook is delivered twice a required field is missing a high-risk message is routed automatically an API accepts...
Source: [Dev.to](https://dev.to/jblaz6335/how-to-add-a-human-review-gate-to-an-n8n-lead-intake-workflow-2f8o)