It's very easy to use your coupon code on Udemy. Click on “Show Coupon Code”, copy it and then be ready to register for your course.
Time to save money. Let's go:
1. Go to Udemy.com.
2. Search for your required course.
3. A new page with related courses and your desired course appears.
4. Select your preferred course by clicking on it.
On the next page click on "Redeem coupon". Type in your code and click "Apply".