Hi 
I have a form where I first do a 3rd party validation with gform_validation hook. And also custom gform_confirmation (our site is multilingual, and it seemed like the only option hardcoding confirmation URLs in different languages).
On the validation part of our User creation process we look at two fields: Email and Phonenumber.
If the Phonenumber is wrong, we return it to the form so the user can correct the number to a correct format (we need this as we send SMS to the user with their password). This works as intended.
The email however… I would like to redirect users if the validation response shows they already have signed up. Is that possible through gform_validation. We could move the logic into gform_confirmation, but thats both counterintuitive and also seem to post the form twice then.