I have some questions about using smartsheet for managing sign ups for courses

The aim is micromanage / manually edit lists as little as possible. I would like to use automation for situations below:

Is there a way to automatically stop/block the option for duplicate enrollments from the same person ( based on email address)?

Set a default maximum limit for enrollments? ( stop registration option when the limit is reached)

Allowing enrollments for specific audience only ( maybe based on email adsress)?

I am not the one specifically working on the sheets, I just need to investigate if any of these would be generally possible.

Thank you,



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