> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.teachify.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).

# Can I set a certain percentage of a video for free to allow students to preview?

The short answer to this question is- No.

For each unit in Teachify, once the free preview is opened, it is 100% open to access.
If you only want to open 30% of a video clip, it is recommended to clip the part you want to provide for free preview separately and put it in an independent unit for free preview.

| Related tutorial document: [How can I offer free preview of certain parts of my paid course for students to watch before purchasing?](/en/article/how-can-i-offer-free-preview-of-certain-parts-of-my-paid-course-for-students-to-watch-before-purchasing-1m6oxgi/)

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