Hi Marcel,

Thank you for purchasing our plugin! I understand you'd like to automatically hide empty categories and show them only when they contain products.

Please go to B2BKing -> Settings -> Other, and enable the "Product Visibility Cache" option. In most cases, this setting should help hide empty categories completely.

However, the exact behavior may depend on the specific widget, theme, or page builder you're using to display the categories. If enabling this setting doesn't solve the issue for you, could you please:
1. Let me know where exactly these categories are showing (menu, sidebar, specific pages, etc.)
2. Share a screenshot if possible
3. Let me know which theme and page builder you're using

Kind regards,
Stefan

Hi Marcel,

Thank you for your patience on this,

-> It is normal that the visibility cache setting results in 404 errors when those category pages are accessed directly. That's because it removes the categories at a very basic level before WooCommerce is initialized and thus it's like they do not exist - which is why it can also work to hide them from menus.

However, indeed we do not have a good way to both prevent 404s there and also hide empty categories from menus.

-> The solution I'd recommend would also be using some CSS, similar to what you are doing. With B2BKing you can add group-specific CSS that only applies to specific groups, or only for B2B users, etc, as described at https://woocommerce-b2b-plugin.com/docs/shortcode-to-restrict-content-to-b2b-b2c-user-groups-specific-users/

Specifically regarding the code you shared, you can replace it with:

function add_class_to_empty_category_menu_item($classes, $item) {
    if ($item->object == 'product_cat') {
        $category_id = $item->object_id;

        $user_id = get_current_user_id();
        $is_b2b = get_user_meta($user_id, 'b2bking_b2buser', true);
        if ($is_b2b === 'yes'){
        	$group_id = get_user_meta($user_id, 'b2bking_customergroup', true);
        	$group_visibility = get_term_meta($category_id, 'b2bking_group_'.$group_id, true);
        	if (intval($group_visibility) === 0){
        		$classes[] = 'niksdrin'; // Add your custom class here
        	}
        }

    }
    return $classes;
}
add_filter('nav_menu_css_class', 'add_class_to_empty_category_menu_item', 10, 2);

It will automatically add that class only when the visibility is set as disabled in category settings: https://prnt.sc/KBLpAphZZQGX

So the class should be added if the current user is B2B and their group does not have the visibility checkbox enabled for the category.

(we cannot do it based on the actual 'count' property because that's difficult to calculate)

Kind regards,

Stefan