I’m creating a signup form for a list in Klaviyo. Is there a way to add custom parameters to the signup so that I can segment my list later on based on those parameters? As an example, if part of my signup form includes mobile device type (e.g. iPhone, Android) can I pass that value in when the user signs up and then later only text/email users on a list who have iPhones?
Best answer by David ToView original