Let me provide additional information about bills, @khisendran.

When you create a bill, that'll be posted to the default Accounts Payable account in your QuickBooks Online. The feature to map it or change the accounts is currently unavailable. These default accounts are created automatically. 

You can check this article for more information on how to enter bills and record bill payments in QuickBooks Online. 

You can also see the following article about the difference between bills, checks, and expenses.

Let me know if you still have questions about bills. I’ll be here to help. Take care!