Mapping Rules for the Marketing Person Integration Components
When creating a campaign load mapping using the Marketing Person integration object, use the following guidelines:
The Contact Id and Prospect Id values imported from the external data source must match the Row IDs for the Contact or Prospect in the contact or prospect tables.
If all incoming target names are contacts, then mapping the Prospect Id is not required. Alternatively, you could use the Marketing Contact integration object. If all incoming target names are prospects, then you do not need to use Contact Id. If the target list includes both contacts and prospects, then both fields are required.