QuickBooks supports third-party apps via API access with proper authentication and permissions, harold14.
As you’re experiencing the QuickBooks unexpected exception error while attempting to integrate Moego with QuickBooks Online, something is likely interfering with the integration process.
To resolve this, I recommend contacting Moego's support team directly, as they possess the expertise and tools necessary to review and resolve any issues related to the software's unsuccessful connection with QuickBooks. They'll be able to identify the cause of the error and guide you through the solution.
Let us know if you have more questions.