Introduction Do you feel it annoying to enter First Name and Last Name in lead even when Existing Contact is selected already?? If yes, then this post will help you to auto populate these fields as soon as Existing Contact is selected. Lead entity contains fullname as primary field (key attribute), which is a combination for First and Last name. These field is used to create contact record if Existing Contact lookup is not selected under lead, so based on the default process when lead is qualified it will create a contact record with the value of these fields (We can write a plug-in to stop creating contact record if required) Figure 1: Qualify Requirement: We need to fill First Name and Last Name based on the Existing Contact lookup.