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Documentation Index

Fetch the complete documentation index at: https://docs.landerlab.io/llms.txt

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Phone Number Validation is a built-in feature of the Phone Number Input Field that ensures users enter valid and properly formatted phone numbers. This helps improve lead quality and reduces invalid or incomplete submissions.

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How to Enable Phone Number Validation

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1. Open the Quiz Builder

  • Navigate to your landing page
  • Click Edit Quiz
  • Go to the step where the phone number field is located

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2. Select the Phone Number Field

  • Click on the Phone Number Input Field
  • The settings panel will open

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3. Enable Validation

  • Locate the Phone Validation setting
  • Click Enable to activate validation
When enabled, the system will automatically check if the entered number is valid before allowing the user to continue. To disable validation, simply click Disable.

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4. Save and Test

  • Click Update
  • Publish or Republish your landing page
Test the field by entering:
  • Valid phone numbers → should pass
  • Incorrect or incomplete numbers → should be blocked

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Why Use Phone Validation

  • Ensures accurate phone number formats
  • Improves lead quality
  • Reduces fake or invalid submissions
💡 Tip: Always keep phone validation enabled when collecting leads for call-based campaigns or SMS follow-ups.