@JasroV 

Hello Jasro, thanks for the prompt reply

May I summarize our previous actions in QBO

1. new start  business and no inventory in the beginning

2. created the product master with ZERO inventory, we did not enter a cost for the product

3.. created PO to purchase the product from the supplier with a specific price per item

4. copied the PO to bill

5. paid the bill

What the purchase cost is not UPDATED in the product.

What should be the CORRECT step to increase inventory qty with COST.

Thank you for your advice again.

Jacky