Property called "Referred by" with dropdown menu based on existing contacts list
I own a small business. Most of my clients come through referrals. It would be nice to have a property called "Referred by" to record the name of the person who referred a lead. I want to be able to select the name from a dropdown list that includes all of my existing contacts.
I created a custom field, however, it's just an open, one-line field.