How can I show discount on purchase order? if it is on total amount.

I can share information about adding discounts to purchase orders, @neethal-futad-qa.

At this time, adding a discount to a vendor transaction isn't possible in QuickBooks Online. In your case, you can consider setting up a discount item as a workaround to offset the total amount on your purchase order.

Here’s how:

1. On your Purchase Order page, select the item.
2. Enter the amount.
3. In the next line item, select the dropdown.
4. Press Add new.
5. Select Non-inventory or Service type, then fill in the fields.
6. You can enter "Discount" in the Name field.
7. Click on Save and close.
8. If you’ve entered a specific value on the setup page, it’ll automatically reflect on your Transaction page. Otherwise, you’ll need to enter the discount amount on the Amount field with negative sign.
   
   
    
9. Once done, press Save or Save and close.

In addition, here's a guide in case you need instructions in adding a discount to your sales forms: Add a discount to an invoice or cash memo in QuickBooks Online.

If you have any other questions or concerns besides adding discounts, just let me know. I’ll be here to help. Take care always!