Import FreshBooks data
I've been using FreshBooks for over 7 years, so it is difficult to switch to a new product that can't import all my data from it. Ideally your product would utilize the FreshBooks API to pull the data over. You can check out harvestapp.com for an example of this working correctly.
We’ve found that accounting system integrations are quite significant so we plan to develop Quickbooks and Xero as the main ones for now.