The mapping for import is EXTREMELY confusing. The fields are not named the same thing as it is in quickbooks. It took me hours to set it up properly. An example i have still not figured out is Customer:Job. I can import the customer into my invoices, but never the job, so then when i change the right job taxes get added (though i have it setup not to) and i have to go line by line to remove the tax.
It would be very helpful if the import Fields were titled what they are in Quickbooks so there isn't so much time spent figuring it out via trial and error.