Hi Ben,
I cannot narrow down this case and generate this error constantly. It just happened from time to time. Talked to Method tech support, they told me to stick with Chrome browser, use Incongito mode, use text box instead of shared result, or says that may be caused by unstable network. Tried all these, but still no way to solve it totally.
Again, Invoice Line Item are created, however "Invoice RecordID" column is left with blank, you can find the exported invoiceline table for these records. https://drive.google.com/file/d/0B7ROzfSe38etWlp5ZERZanRRZ00/view?usp=sharing Or, you can find them in invoiceline item table with recordID (4633 and 4634), but I might need to remove these error or we can not have correct data in QuickBooks.
I cannot find corresponded Invoice record in the table, I tried to use customer name, amount and date to search the invoice record, but not there.
The system is live for our everyday business, let me know how I can prepare a test environment for you if you want to test on it. Thanks.
Alex