QuickBooks is an accounting software package developed and marketed by Intuit.
When using the QuickBooks connector, the first thing you will have to do is click on 'New Authentication' in the step editor:
You will need to select either the Development or Production environment, then click Next and allow Tray to connect to your company.
Important note on authentication
To allow for this, we have created a version 2.0 of the QuickBooks connector, which connects to QuickBooks using the OAuth 2.0 protocol.
All new workflows which make use of the QuickBooks connector will automatically use version 2.0.
However, some old workflows will still be using version 1.0, and will need to be upgraded.
To do this you can click on 'Show advanced properties' on any QuickBooks connector step and scroll back up to set the connector version:
To complete the upgrade you will need to re-authenticate by clicking on 'New Authentication' and re-entering your QuickBooks login details.
Note, however, that it is recommended that you first of all test your QuickBooks operations in a separate workflow to make sure they work as expected in terms of data being returned and so you can be absolutely certain that the upgrade will not break your live workflows.