I added custom product_type_option like this
by filter product_type_option hook like this
function rpf_add_wild_card_product_type_option($type_options) {
$checked = 'no';
$type_options['wild_card'] = array(
'id' => '_wild_card',
'wrapper_class' => 'show_if_simple',
'label' => __('Wild Card', 'woocommerce'),
'description' => __('Please check if this product is wild card', 'woocommerce'),
'default' => $checked,
);
return $type_options;
}
add_filter('product_type_option', 'rpf_add_wild_card_product_type_option', 100, 1);
But, WooCommerce never save Wild Card Field!
I want WooCommerce treat my wild card product type option like Virtual,Downloadable Field.
What should I do in this case?