01) Access the Control Panel
02) After logging in, click on Catalog
When inserting or editing a product
In the Cash Back field, select Yes and fill in the Cash Back Percentage field
Click the Insert / Update button
03) How to insert or edit multiple products at once
04) Click on Catalog >> Multiple Product Management
Select products
In the Cash Back field, select Yes and fill in the Cash Back Percentage field
Click the Confirm button