If your business lives and dies by referrals (any business) be sure you add a custom field "Referred By" and connect it back to the Contacts table.
This is invaluable in figuring out how all of your people are connecting and where a lead came from. I can map back 3-4 layers deep on some of my contacts and that will only grow over time.
Referrals custom field
Referrals custom field
To see the answers/comment from our community members, please login/sign up for free to this Sales community.