I want to send a campaign to existing and new contacts, but i don’t want existing contacts to have to fill the form in again. Can I have the form on a landing page auto-fill the existing contact’/s details so all they have to do is press ‘submit’?
@audien Abbie from ActiveCampaign here! Great idea - I’m sure your contacts will appreciate you making their lives easier and more efficient! 
We have an article to help walk you through how to make these changes and prefill their existing details - if you have any trouble, just reach out to us at help@activecampaign.com so we can help you directly!