How to add data from a hidden form field inside an email notification

Hello, sorry if i set a field "hidden" but in this field there is value, can I insert this field in email ed send it?

Yes, your form will collect information even from a hidden field, and by default it will be included in your email notifications.

Whenever you create a new email notification, it will automatically include all the form fields that are present on your form at that time:

https://www.jotform.com/help/25-Setting-Up-Email-Notifications

If you want to modify an existing notification, you can do that as well. Simply access your desired notification for editing by using the Emails button, and then clicking on its Edit button:

When editing the notification, you can insert your form fields by clicking on the Form Fields button:

If you need further assistance, please let us know.