Code-Snippets-Functions/Execute a function on a child site/WooCommerce/display-custom-product-badge.txt

add_action( 'woocommerce_single_product_summary', 'wc_display_badge_if_checkbox', 6 );
  
function wc_display_badge_if_checkbox() {
    global $product;     
    if ( get_post_meta( $product->get_id(), 'custom_badge', true ) ) {
        echo '
<div class="woocommerce-message">CUSTOM BADGE!</div>
 
';
    }
}