@Lucas G Thanks for helping out. So I figured out the call, however, I cant get the access token to work so far. when the call is sent the user receives and invite email with an accept invite link. I am redirecting the user to a /set-password page where a On page load event parses the current url to set the session cookies. However, that does not seems to work. I checked the url and there is a redirect from sendibt3.com which the forwards to the actual link with the access_token. How did you solve this?