Thanks for joining the thread, @ASI-NC.

I'll share some information about your concern about linking the PO to the invoice.

Since you've added that you're a Vendor in QuickBooks Desktop and you're receiving Purchase Orders, you'll create a sales order first. I'll guide you on how:

1. Turn on Sales Order first if you haven't yet by going to the Edit menu.
2. From there, select Preferences.
3. Click Sales & Customers then go to the Company Preferences tab.
4. Tick the Enable Sales Order checkbox then select OK.
5. Once done, create a sales order from the Customers menu.
6. Go to Sales Orders/Create Sales Orders.
7. Fill in the details needed, then click Save & Close.

Once done, create an invoice from there. With regards to having the Customer: Job name also be a vendor name, you can try adding a middle initial to it.

On top of that, here are some helpful articles to help you with the workflows for tracking your income and expense transactions:

• Get started with customer transaction workflows in QuickBooks Desktop
• Accounts Payable workflows in QuickBooks Desktop

Ping me a reply if you have any further questions about managing your transactions. I'll always be ready to assist you. Stay healthy and hydrated.