How to activate itemized discount option in purchsae invoice

Let me help you add a discount option to your invoices in QuickBooks Online (QBO), mehul9k. 

We have two options to apply discounts to your invoices. We can either include discounts per line item or directly to the total amount. To enable item-wise discount or total discount, just follow the steps below:

1. Click the Gear icon on the top menu. 
2. Select Account and Settings.
3. Tap Sales.
4. Below Sales form content, enable the Item-wise discount or Total discount option. 
5. Hir Save,
6. Press Done.

You may also perform the same action from an invoice.

1. Click the + New Plus icon. 
2. Select Invoice.
3. Tap the gear icon on the top right of the invoice.
4. In the drawer that slides out from the right, enable or tick the option named Item-wise discount.

To learn more about this one, see the Discount by line item on invoices and sales receipts article. Visit our Manage Customers and income page for more insights about managing your company's income and sales transactions.

Feel free to update us on the result of this troubleshooting in the comment below. I'd like to ensure this is resolved for you. You have a good one.