Quickbooks is not currently integrated within Sellbrite
Currently, Sellbrite does not support Quickbooks, but we plan to offer the integration with Quickbooks Online in the future.
For now, you can use a VLOOKUP function in Excel to merge the Orders Export CSV file(Channel Sales) with the Inventory CSV (Cost) into a single file. That should allow you to calculate a simple profitability report.
You can learn how to use VLOOKUP using the following article from our blog: Learn VLookup in 5 Minutes