Excel CSV Tracking MassImport

I have been using it for a few days. application works. however it only works fine with string "tracking number" and "order number" (eg Yunexpress tracking number). As for the "tracking number" and the "order number" (eg USPS tracking number) the app doesn't work at all, although the application has successfully alert, but there is no change to that order. I think the problem here is just the data type when processing. Hope the publisher will review it soon to have a good application for the community Update: contacted and explained clearly the error encountered. they also confirm with that error case. However, after more than 10 days, there is still no update to handle the error. too long and can't wait
Lower the quality rating from 3 stars => 2 stars