Assuming you are customizing the case portal to view certain fields and want to fetch it, the following fields are associated with your query :   ContactId   This field is available on Case Object which is of type LookUP(Contact). Using this  id, you can retrieve contact record and  look for the field name    Name   on the contact object.   Also,  available system and custom fields on any object, one can check it in salesforce. go to setup > object manager > search for the object you want > fields and relationships.    Let us know if you have further questions. @RaunakB @AshishKe  ... View more