Step 1: The Endpoint

Your landing page form should send data to this unique Google Apps Script URL.

Step 2: HTML Form Setup

Ensure your form uses the `POST` method and includes a hidden `action` field.

<form action="YOUR_URL_HERE" method="POST">
  <!-- CRITICAL: This tells the script what to do -->
  <input type="hidden" name="action" value="addLead">

  <!-- Required Fields -->
  <input type="text" name="Full_Name" placeholder="Name" required>
  <input type="text" name="Phone_Number" placeholder="Phone" required>

  <!-- Optional Fields -->
  <input type="email" name="Email" placeholder="Email">
  <input type="text" name="Service_Interest" placeholder="Service">
  <input type="text" name="Budget_Range" placeholder="e.g. ₦500k-₦1M">
  <input type="text" name="Lead_Source" value="Landing Page">

  <button type="submit">Submit</button>
</form>

Pro Tip: Lead Tracking

You can also pass `utm_source` or `utm_campaign` in the `Lead_Source` field to track where your leads are coming from.