> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.courses-plus.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Prerequisite courses

**Prerequisite courses** are mandatory courses that learners must complete (if there is a [quiz](https://help.courses-plus.com/en/article/quizzes-2pltqb/) – quizzes must be completed with a passing grade) before advancing to more complex courses. They ensure that students have the necessary knowledge and skills to succeed in subsequent courses, creating a logical and effective learning path. By following a sequence of prerequisites, learners build understanding step by step, reducing gaps in knowledge and improving overall outcomes.

Here is an example:
![](https://storage.crisp.chat/users/helpdesk/website/-/3/a/e/a/3aea62344d5c9200/chatgpt-image-23-kvit-2026-r-1_aqnubu.png)
To build this, let's visit Courses Plus course details and go to **General settings** tab. Scroll down to the **Prerequisite course** section:

![](https://storage.crisp.chat/users/helpdesk/website/-/3/a/e/a/3aea62344d5c9200/screenshot-2026-04-23-at-15555_wlpjqh.png)
This way you can ensure that students are prepared to this course by completing all necessary courses before this one.