You can set a contact's owner by setting the hubspot_owner_id property to the ID of the HubSpot owner you're assigning the contact to. You can get a list of existing owners using the Owners API:
You can set a contact's owner by setting the hubspot_owner_id property to the ID of the HubSpot owner you're assigning the contact to. You can get a list of existing owners using the Owners API: