An annoying thing for sellers based in Ireland (for example), is that we still don’t use post codes (they recently introduced them, but nobody’s using them). So, in today’s task, I want to show you how to disable the “REQUIRED” feature of the postcode on the checkout page.

We already saw how to completely remove the PostCode/ZIP field… but this time we wish to leave it on the checkout, and just avoid a validation error if we don’t enter anything.

Disable Postcode/ZIP Validation @ WooCommerce Checkout
Disable Postcode/ZIP Validation @ WooCommerce Checkout Disable Postcode/ZIP Validation @ WooCommerce Checkout

PHP Snippet (Alternative #1): Disable Postcode/ZIP Validation @ WooCommerce Checkout


/**
* @snippet       Disable Postcode/ZIP Validation @ WooCommerce Checkout
* @how-to        Get CustomizeWoo.com FREE
* @sourcecode    https://businessbloomer.com/?p=20203
* @author        Rodolfo Melogli
* @testedwith    WooCommerce 3.5.3
* @donate $9     https://businessbloomer.com/bloomer-armada/
*/

add_filter( 'woocommerce_default_address_fields' , 'bbloomer_override_postcode_validation' );

function bbloomer_override_postcode_validation( $address_fields ) {
  $address_fields['postcode']['required'] = false;
  return $address_fields;
}

PHP Snippet (Alternative #2): Disable Postcode/ZIP Validation @ WooCommerce Checkout


/**
* @snippet       Disable Postcode/ZIP Validation @ WooCommerce Checkout
* @how-to        Get CustomizeWoo.com FREE
* @sourcecode    https://businessbloomer.com/?p=20203
* @author        Rodolfo Melogli
* @testedwith    WooCommerce 3.5.3
* @donate $9     https://businessbloomer.com/bloomer-armada/
*/

add_filter( 'woocommerce_checkout_fields' , 'bbloomer_alternative_override_postcode_validation' );

function bbloomer_alternative_override_postcode_validation( $fields ) {
$fields['billing']['billing_postcode']['required'] = false;
$fields['shipping']['shipping_postcode']['required'] = false;
return $fields;
}

Official Documentation

https://docs.woothemes.com/document/tutorial-customising-checkout-fields-using-actions-and-filters/

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