There is no limit to the number of questions you can have on your screener. However, the longer a screener is, the less likely candidates will be to complete it.
We recommend keeping your screener survey between 5-15 questions. The maximum amount we recommend is 25 questions. We've seen that screeners longer than 25 questions lead to significant drop-off, limiting the size of your candidate pool.
If you'd like to learn more about candidates before approving them, consider adding double screening to your project. This add-on gives you access to candidate contact information, allowing you to send messages, emails, or schedule calls with potential participants before you approve them for a session.