I can't add item-wise discount to my invoice.

Hi there, @Chopsticks.

I can see that you've posted twice in this forum in which my colleague AbegailS_  already answered your question. 

I just wanted to let you know that she already responded to your other post. To view her response, you can check this link: https://quickbooks.intuit.com/learn-support/global/manage-customers-and-income/re-i-can-t-find-item-wise-discount/01/1010980#M5408.

To keep the conversation streamlined and provide you with the best resolution, I'll ask that you post any follow-ups there.

If there's anything else I can do for you, let me know by commenting below. I'd be happy to help. Have a great day.