Hi @OğuzHocaKYSR, As an instructor, you have the option to participate in the Udemy Deals Program. This allows Udemy to use marketing data to optimize your course's list price and discount range in different markets around the world.
Udemy runs many types of promotions throughout the year to encourage students to find and enroll in instructors' courses. Udemy may also offer discounts to accompany paid advertisements or content placements for some courses that attract new students to the platform. Participation in Udemy Deals program is governed by the terms available here.
You can opt-in to this program at any time by editing your promotional agreements.
Hope this helps!
Udemy Community Team