Hi jimchuang
With our new premium add-on ATUM Purchase Orders PRO, from an order you can create a PO in order to restore the stock. Also, from Stock Central you can filter or sort to see which products have low stock or they are out of stock, and adding them in a Purchase Orders from Stock Central.
However, note that all this has to be manually.
I leave you here the link to the documentation where you will find useful info about how it works: https://stockmanagementlabs.crunch.help/atum-purchase-orders-pro
And the link to the demo site in case you want to try the free trial: https://stockmanagementlabs.com/addons/atum-purchase-orders-pro/
Best Regards,
Andrea.