Whoid in salesforce refers to individuals issues. So that may be sometimes a lead id or a contact id.
The whoid represents a human reminiscent of a lead or a contact. Whoids are polymorphic.
Polymorphic means a whoid is equal to a contact’s id or a lead’s id.
The label is identify id. Whatid in salesforce refers to object kind issues.
That would sometimes be an account id or a chance id. The whatid represents nonhuman objects reminiscent of accounts, alternatives, campaigns, circumstances, or customized objects.
Whatids are polymorphic. Polymorphic means a whatid is equal to the id of a associated object.
The label is expounded to id.