After you have created a rebate, you can edit the same whenever required.
To edit a rebate
Go to ADMIN SETUP > Incentive Management > Rebates.
The Rebates page is displayed.
Search for the rebate you want to edit.
Click the rebate name.
The Summary screen is displayed.
You can expand each section to see the details.
Click Edit to modify the expanded section. For example, expand Benefits section for a rebate and click Edit to modify the benefits that are applied to the selected rebate.