Hello there, lpidgeon.
I'd like to ask if how the importing process was done. Is it via banking? Or via third-party application? Your response is appreciated.
Transactions will show in the Invoices tab if they were imported as Invoices in QuickBooks. Also, if they were imported via Banking, they will not display in the Invoices but in the account register instead.
You can also check your Profit and Loss report and verify if the sales income is increased. This is to verify that the imported transactions were recorded. If so, it could be that they were recorded as other sales transactions such as Sales Receipt. It's also possible that they were recorded directly to the account register.
Please get back to me if you have further questions. I'd be around anytime.
