n8n Lead Intake, SLA & Safe Retry Workflow

A real, importable n8n workflow demonstrating controlled lead intake, duplicate protection, explicit business-rule routing, human review, SLA handling, a visible CRM failure and safe recovery.

Built and executed in a real n8n editor using four synthetic events and no production credentials, API keys or client data.

What this proof demonstrates

• stable idempotency keys and replay suppression;
• validation before downstream actions;
• a human-review route for ambiguous cases;
• visible failure handling and controlled retry;
• audit-ready outcomes and documented handoff.

Result: three leads delivered, one replay suppressed, one review approved and one simulated CRM 503 safely recovered, with zero duplicate records or tasks.

Explore the working proof and download the importable workflow: https://www.twine.net/signin