Hook filter to add/remove/alter data before saving it to database (contact entry)

[Zeldri]

Hi, Is there a hook filter that can be use to edit data from a form submission before being save as contact entry/database ? That's because I would like to add data that don't need to be display to the form, I know there is a way to autopopulate from $_GET or $_POST from other forms but because I'm using a rewrite rule, the $_GET parameters are not being catch by superform or PHP but only with query_vars

[RensTillmann]

Yes, please read here for available hooks and example codes: https://renstillmann.github.io/super-forms/#/introduction-hooks