How do I turn on address validation in Magento?

Overview

You see that the addresses on your Magento sales are not updated in a standardized way or corrected and you want to use our address validation functionality within Magento to accomplish this.

Environment

Magento

Resolution

• Login to Magento with Administrator permission
• Go to System
• Click on Configuration
• On the right side, click on Tax (depending on your Magento version, this may appear under Sales on the left)
• Scroll down to Shipping Address Options
• Under Address Validation, select Enabled + Prevent Order or Enabled + Allow Order ("Allow" not recommended)
  • Enabled + ​Prevent Order requires a customer to provide a valid address before they can check out
  • Enabled + Allow Order allows a customer to check out without a valid address - this can result in $0 tax
• Click Save
• Your Magento store will validate shipping addresses