Hi @Anonymous, I'll share details about importing data.
As of the moment, there isn't an integrated way to import data from third-party applications. You'll want to download a CSV format of your data from Dext and use the import feature to upload the file.
Use this article to learn more about the feature: What Information can I Import to QuickBooks Online?
Meanwhile, I still recommend contacting the Technical Support of Dext. From there, you can work with one of their specialist in importing your data.
I've also included this reference helpful with the steps needed to identify how stable is your business's financial status: Create and Manage Reports in QuickBooks Online.
Know that you can always leave a reply below if there's anything else that I can help you with aside from importing your data. I'll surely be around, ready to lend a hand. Stay safe!
