For testing, your QuickBooks account should be provisioned automatically with a sandbox company you can use.
If when trying to connect to QuickBooks using Test Servers you receive an error of “There is no sandbox companies found for the user”, you'll need to review your account to create sandbox companies to utilise. You can do that from your QuickBooks account at this URL: https://developer.intuit.com/app/developer/sandbox, there is also some information about sandbox companies in their documentation here.
Contact quickbooks for info. Know more? Feel free to edit this page with info.
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