Contact Form 7 Submit action

I understand Contact Form 7 has a standard of staying on the same page (URL) when the SUBMIT button is clicked. We are using Google Adwords and need to enter some conversion code for checking. Google suggests putting this on a “Thank You” page that user is redirected to after a successful submission so that you don’t get flase counts for when the user fails to enter a required field and still clicks submit. Otherwise, I could just put the code in the Contact Form 7 HTML.

I did see on Contact Form 7 knowledge base that I could use an “on_sent_ok” script to send to a separate page.

Is that what the experts here would do or is there a better method?

Thanks!!!!