I actually use Peachtree and thought I would be back in the same boat of not being able to integrate my shopping cart with our system when changing to woocommerce. I found Cartspan that integrates both Quickbooks and Peachtree.
They didn’t have for woocommerce then, but we called and told them we wanted their program with our new shopping cart and they created it within a couple weeks and then helped with the installation. Awesome service!
We just started using it and so far updating inventory values and downloading orders has gone perfectly. And this is with 20 master items and 1500 variables.