Is there a report in QuickBooks Online that shows what was imported with Transaction Pro Importer?
The most helpful report in QuickBooks Online to use to review or audit what as been imported with Importer is the Audit Log report. It is found in QuickBooks Online under the REPORTS > BUSINESS OVERVIEW menu. It can be filtered by date and transaction type. Note that imported transactions will not appear different than transactions that can have been manually imported. However, if the date, time, and type of import is known, the Audit Trail report can be filtered to find what was imported. Also, no matter what user imported the transactions, on the Audit Log Report, it will show as the Transaction Pro Admin user's name.