Προσθέτουμε στο functions.php

add_action( 'admin_head-post-new.php', 'woo_limit_products_creation' );
function woo_limit_products_creation() {global $post_type;
global $wpdb;$products_limit = 50; // Change this valueif( $post_type === 'product' ) {
$products_count = $wpdb->get_var( "SELECT count(*) FROM $wpdb->posts WHERE post_status = 'publish' AND post_type = 'product'" );
if( $products_count >= $products_limit ) {
wp_die( sprintf( __("Error. You are not allowed to create more than %s products."), $products_limit) );
}
}
return;
}