Thanks for your input, but I think I should've clarified my question better.

I've tried the OneSaas connector, and while I'm not opposed to it, it doesn't solve my reporting needs. The way I understand it, that only helps with getting the data into Quickbooks. I'm already using a different app that's more flexible in the way it imports my sales data into QBO.

What I'm asking for is the conceptual method of tracking my sales in QBO. Basically, how can I associate income, shipping labels, selling fees, etc. all to a certain sale so I can track my profit for that sale and the other reports I listed above.

I'm trying to figure out how one could manually record the data to get the reports I need, then I'll figure out the automation later.

Thanks!