Hi hello33,
Welcome to QBCommunity!
CSV transactions can only be directly matched to the fields provided in the Banking screen. However, you can match products to transactions if they are a part of an existing QuickBooks transaction like an expense or invoice.
For example, if one of your invoices contain one product, you can match the transaction to the invoice as a whole, but not to the product itself.
Hope this makes sense!
Bonny