How to Build a Lead Capture & Validation Workflow Using n8n

说明与用途

n8n 自动工作流通过 Webhook 接收潜在客户数据，验证邮箱格式，格式化信息，并返回 JSON 响应，消除手动处理。

问题

Businesses receive multiple leads daily and manual handling is time‑consuming.

结果

The workflow automatically receives lead data, validates the email format, formats the lead information, and returns an appropriate JSON response, eliminating manual lead handling.

工作流

• Create a new workflow in n8n
• Add a Webhook node with POST method, path "lead-intake", response mode "Using Respond to Webhook Node"
• Add a Code node that extracts name, email, phone, enquiry, trims spaces, lowercases email, checks email format, and returns a structured lead object or validation message
• Add a Respond to Webhook node that returns JSON with status code 200 for success or 400 for validation failure
• Connect nodes: Webhook → Code → Respond to Webhook
• Test the workflow using cURL or Postman
• Optionally import the provided JSON to create the workflow instantly

证据

With n8n, you can build a workflow that automatically receives lead information through a webhook, validates the submitted email address, formats the data, and returns a response.

来源

This code extracts the submitted fields, trims unnecessary spaces, converts the email to lowercase, and performs a basic email-format check.

来源

For a valid email address, the workflow returns a success response containing the formatted lead. If the email is missing or invalid, it returns a validation message.

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