Hey, @malky. 

Thanks for the extra clarification on the vendor estimates problem. Don't worry. I can walk you through the workflow of purchase orders and bills. 

You can choose one of the two Accounts Payable workflows that are available in your QuickBooks Desktop (QBDT) account to help record these transactions: 

Workflow 1: Pay bills that have a purchase order

If your business tracks goods and services, I recommend using this method. 

1. Create a purchase order. 
2. Receive the inventory. 
3. Enter the bills against your inventory. 
4. Pay bills. 

Workflow 2: Pay bills that don’t have a purchase order 

1. Enter bills. 
2. Go through step 4 from above with the same link. 

Consulting with your accountant to be sure what's best for your business will help you out. If you don't have an accountant, don't worry. Cruise on over to this link to find one near you. 

In addition, here's an article that can help you track your cash flow in your account. 

The information above should give you peace of mind about what to do next in your QuickBooks Desktop account. Should you need any further assistance, don't hesitate to ask. I'll always be around to help. Have a great Monday!