I'd be glad to help get you pointed in the right direction for assistance with creating your Power BI dashboard.
There's a community dedicated to developers and the creation of applications. This site contains resources for software development, as well as the ability to ask fellow developers questions. You can find additional information about this at the following link: Intuit Developer.
Let me know if you have any questions. Wishing you the best of luck with the application that you're creating.
Good Luck akila, I have not found a current one since QBO's latest restructuring.
That said, if you use the "Quickbooks Online" App from Power BI Online, and then connect to that data source from Power BI Desktop, it will automatically link the tables for you....MUCH easier than linking them yourself.
That said, since QBO's issues last week, my Power BI QBO App has not worked.... one step forward, two steps back.