Orders complete WITHOUT “pick locker” selection

Hi all,

If it helps I can write this issue in Greek.

We have Stripe (credit card, apple pay, google pay) on our eshop with BOX NOW.

Some orders, proceed to payment WITHOUT the user selecting a locker.

How can we fix that?

We already added custom code:

add_action('woocommerce_checkout_process', 'require_boxnow_locker_selection');
function require_boxnow_locker_selection() {
    // Only validate if BOX NOW shipping method is selected
    $chosen_methods = WC()->session->get('chosen_shipping_methods');
    if (in_array('boxnow_shipping_method', $chosen_methods)) {  // Adjust to your exact method ID
        $locker_id = $_POST['boxnow_locker_id'] ?? '';  // Field name from plugin; inspect form for exact
        if (empty($locker_id)) {
            wc_add_notice(__('Please select a BOX NOW locker location to proceed.', 'woocommerce'), 'error');
        }
    }
}

function boxnow_fix_overlay() {
    ?>
    <script type="text/javascript">
    (function($){
        window.addEventListener("message", function(event){
            const data = event.data;
            
            // Αν το iframe στείλει "closeIframe" ή αντικείμενο με boxnowClose
            if(data === "closeIframe" || (typeof data === "object" && data?.boxnowClose !== undefined)){
                // Αφαιρούμε overlay και iframe
                $("#box_now_delivery_overlay").remove();
                $("iframe[src^='https://widget-v5.boxnow.']").remove();
                $(".boxnow-popup").remove();
            }
        }, false);
    })(jQuery);
    </script>
    <?php
}
add_action('wp_footer', 'boxnow_fix_overlay', 100);

add_action('woocommerce_email_before_order_table', 'add_boxnow_info_to_email', 10, 4);

function add_boxnow_info_to_email($order, $sent_to_admin, $plain_text, $email) {
	if ($email->id !== 'customer_completed_order') {
		return;
	}

	$parcel_ids = $order->get_meta('_boxnow_parcel_ids', true);

	if (!empty($parcel_ids) && is_array($parcel_ids)) {
		if ($plain_text) {
			echo "\nBox Now:\n";
			echo "<p>Παρακολούθηση δέματος: </p>";
			foreach ($parcel_ids as $parcel_id) {
				echo "https://boxnow.gr/?track=" . esc_html($parcel_id) . "\n";
			}
		} else {
			echo '<h2>' . __('Box Now', 'woocommerce') . '</h2>';
			echo '<p>Παρακολούθηση δέματος: </p>';
			echo '<ul>';
			foreach ($parcel_ids as $parcel_id) {
				echo '<li><a href="https://boxnow.gr/?track=' . esc_html($parcel_id) . '" target="_blank">' . esc_html($parcel_id) . '</a></li>';
			}
			echo '</ul>';
		}
	}

}

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