I am unable to find print option for debit note?

Hello there, @coo2.

You can track your debit note in QuickBooks. However, the ability to print it is not available. As a workaround, you can run the Supplier Balance Detail or Supplier Balance Summary report and filter it to show the supplier you need.

Here's how:

1. Go to the Reports menu.
2. Scroll down to the Manage Account Payables section.
3. Select Supplier Balance Detail or Supplier Balance Summary. 
4. Press Customise.
5. Filter to only show the supplier. 
6. Hit Run report.
7. Click the printer icon to print. 

Also, you can read through this article you can use to customise reports and acquire the financial data you need in QuickBooks: Customise reports in QuickBooks Online.

Swing by to us here if you have other questions about creating and printing sales forms in QuickBooks. I'm always here to lend a hand.