I can help you track your sold items in QuickBooks Online.
We can pull up a Sales by Product/Service Detail report, then customize it to view specific products you'd like to keep track. Let me show you how it is done:
Click Reports from the navigation panel.
Locate Sales by Product/Service Detail from the report's search field.
On the report, update the report date the click Run report.
Once done, click the Customize button.
Click the Filter menu to expand the options.
Mark the Product/Service box.
Click the Product/Service drop-down then mark the products you'd like to be displayed on the report.
Click Run report.
The report will show you the total quantity sold, the sale amount and the running unpaid balance for your sold items. To know more about customizing reports in QuickBooks Online, please feel free to visit this page: Customize Reports
That should help you track your sales accurately this time, Fullersphoto. Let me know if there's anything I can help you. I'll be more than happy to work with you again. Have a good one!