I've got just the information you're looking for regarding your Bill.com subscription cancellation, @stacymae.
When canceling Bill.com, those expenses that you've created will remain posted in QuickBooks Online. There's no need them back into QBO. However, before you cancel your account, there are a few things to keep in mind. Check our guide on bill.com cancellation for more information.
Here's how to cancel your Bill.com account:
Once you've deactivated your bill.com account, you can record your bill payments via the regular process. Just click the +New button and select Pay bills.
May I know which service you'll be using moving forward? I just want to be able to provide some resources to ensure your success with the transition!
Keep in touch with me here should you have any additional questions or concerns. I'm always available to help.