How to delete Discount Code

From the Ticket Management menu, click on Discounts → Discount Schedule tab → Open any Discount Schedule record.
Select any Discount Code record present in grid and click on Open button.
Click on Delete button.
A warning message will prompt telling that you are about to delete the record. Click Yes to continue.
Application should delete the record from Discount Schedule screen grid
If Record is being used and user click on Delete button

Application should give warning message as shown above.