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

# How to close a form after a certain date?

  You may want your form to "expire", so that respondents have a submission deadline. Here's how you can set this up:  
  
*   Open the form editor (create a new form or update an existing one)
*   Click on "Settings" from the top of the page then Select "Security & Access" on the left side.
*   Setup a closing date
  

![](https://storage.crisp.chat/users/helpdesk/website/1b5b982fc3df6500/chromecm01ieehur_1uz39gs.png)

*   Add a custom message that will be shown when the form will be closed
*   Save the form and you're done!




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