/**
* This code is designed to display a message when a product is out of stock.
*
* It adds a link to the "Product Inquiry" tab on the single product page
* if the current product's stock status indicates it is out of stock.
*/
function conditional_out_of_stock_contact_message() {
global $product;
$product_url = get_permalink( $product->get_id() ); // Get the current product's URL
$inquiry_tab_fragment = '#tab-product-inquiry'; // The URL fragment for the inquiry tab
if ( !$product->is_in_stock() ) {
echo '
