Good day, ega.
Let me help you to track what you owe.
In QuickBooks Online, we can record it using the Bill feature. Simply go to the +New button and select Bill. Enter all details needed especially the Category details or Item details. When you're done, select Save and close.
You can also check the detailed instruction through this link: Enter bills and record bill payments in QuickBooks Online.
Here are the articles if you need supplier reports:
Keep your posts coming if you need anything else. Stay safe!