In the Incentive workflow (GM Bonus or Sales Incentive); open the In Progress tab and find your current Incentive submission:
Click on the submission to open it, and find the “Withdraw” button at the bottom-right of the form:
You can then use the Withdrawn tab in the Incentive to view open the Incentive that you just withdrew:
When opening the form, you’ll see a new option in the bottom-right to Restart your Incentive submission:
That will open a Draft of the form where any necessary changes can be made, and then Submitted as a new form