I am trying to track my customer referrals. In the Leads Module, I have "Customer Referral" as an option in the Picklist. I also created a "Lookup" Custom Field called "Referred By" and pointed it to my list of accounts.
Is there a way to mandate that if "Customer Referral" is selected from the Picklist, that the "Referred By" Lookup Field Must be completed, or in other words, to make this field mandatory if the Picklist equals "Customer Referral"?