The option to email bills to suppliers is currently not available in QuickBooks Online (QBO), Duddyvet.
Alternatively, you can create a bill for your supplier and print it manually to send outside of QBO. Follow these simple steps to print the bill:
1. Navigate to the Expenses tab in the left menu.
2. Choose Bills and then select Create Bill.
3. Fill in the bill details.
4. Click the Print button to download the bill.
Feel free to add a response below if you have any other concerns.