You need a Import via CSV Function for Purchase Orders.
Thank you for reaching us. I can confirm that our developers are working on a new purchase order module. Unfortunately there is no ETA for release just now. But hopefully this feature will be added to new module. Just to make sure, I can advise you to create a topic in our Feature request forum.
You can use the one on desktop till they get it sorted on .net
How Do I do that?
Unfortunately desktop is available only for users that were registered before October 2017.
We do still support this application but everyone who was registered after this date, will no longer have access to desktop.