Never store the shipping information

Hi there ??

This is a fairly complex development topic. I’m going to leave it open for a bit to see if anyone is able to chime in to help you out.

I can also recommend the WooCommerce Developer Resources Portal for resources on developing for WooCommerce.

You can also visit the WooCommerce Facebook group or the #developers channel of the WooCommerce Community Slack. We’re lucky to have a great community of open-source developers for WooCommerce, and many of our developers hang out there, as well.

Cheers! ??

So, by changing my function i was able to achieve what i want.

add_action( 'woocommerce_review_order_before_submit', 'products_not_shipable' );
function products_not_shipable() {
    // Only on checkout page (allowing customer to change the country in cart shipping calculator)
    
    if( is_checkout() ){
        // Set your products
        $products = array(14059, 14051, 14043, 14035, 14017, 13847, 13833, 13823, 13809, 13793, 13771, 13757, 13747, 13733, 13692, 13682, 13658, 13644, 13634, 13620, 13583, 14056, 14048, 14040, 14032, 14014, 13842, 13828, 13820, 13803, 13788, 13766, 13752, 13744, 13727, 13687, 13679, 13653, 13639, 13631, 13631, 13578);

        // Get customer country
        $country = WC()->session->get('customer')['shipping_country'];
        if( empty($country) ){
            $country = WC()->session->get('customer')['billing_country'];
        }

        // For Countrys
        $pais = array("DE","DK","SI","ES","FI","FR","GR","IT","PL","PT","UK");

        if ( !in_array($country,$pais)){
            // Loop through cart items
            foreach( WC()->cart->get_cart() as $item ){
                // IF product is in cart
                if( in_array( $item['product_id'], $products ) ){
                    // Avoid checkout and display an error notice
                    wc_add_notice( sprintf( __(" %s can't be shipped to your country.", "woocommerce" ), '"' . $item['data']->get_name() . '"'), 'error' );
                    
                        echo '<script language="JavaScript">';
                        echo 'document.getElementById("place_order").disabled = true;';
                        echo '</script>';
                    
                    break; // Stop the loop
                }
            }
        }
    }
}

I made it run on woocommerce_review_order_before_submit instead of woocommerce_check_cart_items and it works. Also, added a javascript code to disable the checkout button in case you don’t meet the requirements.

But now i have a different problem.
Every time i click on “ship to different address” and change the country on the shipping address the woocommerce runs a validation to check if all is ok to proceed with checkout and it runs my function, but if the “ship to different address” is not enabled, every time i change the country it doesn’t make any validation and lets the client place the order for countries that don’t meet the requirements.

So, what i need now, is to know how can i make woocommerce run the checkout validation when the country on billing address changes.

Thank you.