I am going to use Endicia Pro from the USPS to ship my products. I have a cron export setup to create the file for import into the mail system. The mail system will then write back to the import file the tracking id what is the best way to get that field back into the database. On my test with import function I apparently didn't have all the order fields and it removed the price and item from the order but did update the Tracking ID. Is there a list of fields I do have to include so that only the Tracking ID gets updated?
Vito Added this comment
"you can import all data back using import button at the bottom of orders list where you will need select only two fields 'Order ID' and 'Shipping Tracking Number'"
