Difference between WhoId and WhatId What is difference between WhoId and WhatId? Difference between WhoId and WhatId WhoID in Salesforce refers to people things. So that would be typically a Lead ID or a Contact ID. The WhoId represents a human such as a lead or a contact. WhoIds are polymorphic. Polymorphic means a WhoId is … Continue reading Difference between WhoId and WhatId