Hello there, Tcogan.
I'd be glad to route you to the team that will best assist you in connecting your Joist account to QuickBooks Online (QBO).
I'd suggest contacting the Joist Support team. They have the tools to check how to synch to the QuickBooks option. They can also assist you with how to accurately use their app when connecting to QuickBooks. Always make sure you are contacting them through their official and verified channels to ensure the security of your information.
Once you're done syncing your third-party app, if you like to know whose user can access your account, you can check this article: User Roles and Access Rights.
If you need any further assistance with syncing your account or have any other questions, please don't hesitate to ask. Best of luck with your setup, and here’s to making your business processes more efficient!