This app has so much potential but it has a few bugs. Support kindly turned off the auto payment feature however it's still recording Shopify payments and support have stopped responding so I have to manually delete these every sync. It also has a $0.01 rounding issue when you record postage as a line item, so you have to go into every invoice to delete and enter postage again to fix the rounding. This is time consuming. Support are aware of this issue. It also goes back and changes invoices once they've been paid and clear every sync, so you have to be careful to do a lot of cross checking. I'm a chartered accountant by trade, so these issues are easy enough for me to deal with, but non-accountants could have some issues.