add_filter( 'woocommerce_billing_fields', 'mx_optional_phone_field', 10, 1 );
function mx_optional_phone_field( $address_fields ) {
$address_fields['billing_phone']['required'] = false;
return $address_fields;
}
add_filter( 'woocommerce_billing_fields', 'mx_optional_phone_field', 10, 1 );
function mx_optional_phone_field( $address_fields ) {
$address_fields['billing_phone']['required'] = false;
return $address_fields;
}