WooCommerce Postcode Address Validation Add-on current updated version 1.5.0. Simplify your checkout process by having your customer validate or lookup their address during checkout. If your store has tried to ship to an invalid address, you know it’s set you back both enough time and money to resend the order to the customer. Never worry about this hassle again! Easily add US Address Validation, UK Postcode Lookup, or NL Postcode Lookup to your WooCommerce Checkout. Postcode/Address Validation will simplify your checkout process and improve order address quality by having your customer validate or lookup their address during checkout. Enhance your important thing and customer happiness with Address Validation.