There is nothing in the API response to indicate if the shipment has a CN22 or CN23. This would make it much easier to script my system to request and print the correct label when required. Currently it attempts to print a CN22 and if the response from that fails it then tries to print a CN23.

This system works fine but I'd like to use the new option to print the CN22 on the main label, so I need to know in advance if the order will have a CN22 or CN23. I know I could use the value to work out when it should be a CN23 but I would rather have something more definitive in the response. This will also make the script future proof in the event the goal posts move with the use of the CN23.