Hi CableMonkey,
Welcome to the Community family! It's great you're using various management software and wanting to use them with QuickBooks Online. QuickBooks enables you to connect several third-party apps to optimize your user experience. I'll be happy to share more on this.
From what you're describing, it sounds like you might be using the US version of QuickBooks Online. The Advanced plan is currently offered for the US product, and I encourage you to reach out to the US community here for more information on the plan and proper guidance for your task: US QuickBooks Community
In case you're using the Canadian version of QuickBooks, I invite you to visit our Apps menu to explore the complete list of our partner apps. You can also do so here if you don't have an account with us: QuickBooks Apps
I hope this helps! Have a great day.