Submit on Change for Elementor Pro Form allows you to automatically send the message when a change takes place in the field where this option is enabled. This option is available for the field type "Select" and "Radio".
Use Cases:
When you want to redirect a user to a different page based on the select field without clicking the submit button.
When you want to show/hide other elements on a web page based on the value of a select field as the user changes options.