I'd like to collect some feedback from people when they unsubscribe from our mailing lists, but it seems that civiCRM doesn't have a way for me to access the unsubscribe page to add additional custom fields.
Ideally, I'd just like to ask a question like: "Can you tell us more about why you are unsubscribing?" And then display a custom field with either a text box or a radio list of reasons.
Is there a way to do this?
I'm running civi 5.31.0 and Joomla 3.9.23