Hello ivorpatt,
QuickBooks Online allows you to edit a bill even if it's already linked to a bill payment.
Here's how:
- Go to Expenses.
- In the Expenses tab, double-click on the bill.
- Update the items.
- Click on Save and close.
Let's also make sure to use the Master or Company Admin's access. That's because other custom users don't have the capability to edit transactions.
I would also want to know if did you get any error messages? If so, you can try to use a private browser when editing the bill. For Chrome, press Ctrl+Shift+N then log into QuickBooks Online.
Let us know if you have other questions. We're here to help.