I can help you generate the report that you need, @Bluemanta. 

You can customize a Transaction Detail report to generate a report showing purchase orders by a specific vendor. Follow the steps below:

1. Go to the Reports tab and choose Custom Reports.
2. Select Transaction Detail and click the Customize Report button.
3. In the Display tab, update the report date.
4. Go to the Filters tab.
5. Click Transaction Type from the Filters, and choose Purchase Order from the Transaction Type drop-down.
6. Click OK.

Check this article for more information on running reports for your vendors: Customize vendor reports. 

To further customize the report based on your needs, check out this article for further guidance: Customize reports in QuickBooks Desktop.

I'm always here if you need anything else in generating the report that you need. Let me know by leaving a reply below. Keep safe and have a wonderful day!