How to check fields for fullness

how to check fields for fullness ? To prevent the user from saving an empty field

Hi there, @tanya2… what “fields” are you talking about? Bubble has built-in functionality to make most elements you would put on a form required. For example, here is an input element, and you can check the highlighted box to make the input required.

Is that what you are trying to do?

Best…
Mike

yes, it is what i need, thank you)