Purchase Order need Add qty column

Here is how to add the Quantity column to your Purchase Orders and track your exact order amounts:

1. Click the Gear icon in the top right corner. 
2. Select Account and settings. 
3. Click the Sales tab on the left menu. 
4. Scroll down to the Products and services section and click Pencil icon to edit.
5. Switch on the Show Product/Service column on sales forms, Track quantity and price/rate, and Track inventory quantity on hand. 
6. Click Save and then Done. 

For complete steps on managing your items so they automatically populate, you can review this guide: Set up and track your inventory in QuickBooks Online.   

Please don't hesitate to reply below if you still have any other questions or concerns.