These actions are processed only when the form gets successfully submitted, which means that all form fields have been filled correctly.
In the actions editor, you can place all the actions of your choice.
Example placing the record and message actions:
[record]
[message type="success"]Form submitted successfully![/message]
Even you can repeat the same action for different purposes.
Example sending an email to site admin and another email to form submitter (using tags for the
to attribute):[email to="{site.admin_email}"]New submission![/email]
[email to="{field.email_123}"]Submission received![/email]
EXTRA: To meet with GDPR and other privacy laws, you have actions to register data export and deletion requests:
[export_request email="{field.email_123}"]Export request registered![/export_request]
[delete_request email="{field.email_123}"]Deletion request registered![/delete_request]