How can I restrict moving to the next section when a mandatory field has not been completed?

Hello!

I have many sections in a form and many mandatory fields. However, users are able to move forward to the next section without completing the mandatory field. This not only causes problems for rules and other automations, but also is a big headache when trying to submit the form.

How can avoid this?

I would like to restrict users to move forward if there is a mandatory field blank.

Thanks!