linux4me2

I had to make a small tweak to the snippet you provided to get it to work.

The line:

apply_filters( 'wpml_object_id', tinv_get_option( 'page', 'wishlist' ), 'page', true )

returned the ID of the Wishlist page, so it always evaluated as true and the filter didn’t fire.

I changed the snippet so it compared the current page’s ID to the Wishlist page ID as follows, and it works:

add_action('wp_enqueue_scripts', 'tinvwl_wishlist_webfont', 9);

function tinvwl_wishlist_webfont() {
	if (class_exists('TInvWL') && !is_shop() && !is_product() 
            && apply_filters(
                'wpml_object_id', 
                 tinv_get_option('page', 'wishlist'), 'page', true) !== get_the_ID()
        ) {
            add_filter('tinvwl_load_webfont', '__return_false');
	}
}

Thanks again! I wouldn’t have gotten there without the help.

I think I have it figured out, or at least one solution that works for me.

In case anyone else wants to prevent a custom order item meta from appearing in an invoice and packing slip, you can add the following code snippet to your child theme’s functions.php:

add_filter('woocommerce_order_item_get_formatted_meta_data', 'unset_specific_order_item_meta_data', 10, 2);
function unset_specific_order_item_meta_data($formatted_meta, $item){
    /*
    // Only on emails notifications
    if(is_admin() || is_wc_endpoint_url()) {
        return $formatted_meta;
    }
    */

    foreach($formatted_meta as $key => $meta){
        if(in_array($meta->key, array('<name of your order item meta to remove>'))) {
            unset($formatted_meta[$key]);
        }
    }
    return $formatted_meta;
}

Just replace <name of your order item meta to remove> with a comma-separated list (in single quotes) of the order item meta(s) names you want to remove. This is a WordPress function, and will also remove the order item meta from notification emails.

If you want the order item meta to appear in admin-generated PDF invoices and admin email notifications, you can try un-commenting this section:

if(is_admin() || is_wc_endpoint_url()) {
    return $formatted_meta;
}

I haven’t tested that part, because I wanted the item meta hidden everywhere.

Using this solution is perfect for my needs, because it doesn’t delete the custom order item meta name/value, it just doesn’t include them in the formatted output.

I found the answer here, so thanks to LoicTheAztec.

It turns out it’s WooCommerce 6.5.0 that broke things, and I guess in the time it took me to figure it out and post this, it was rolled back to 6.4.1, which works just fine, so I’m marking this one as resolved. Sorry about the confusion.