Contacts Rest Endpoint - Referral Code

When making a request to the Contact REST endpoint, what optional property can yield the Referral Code field. See attached. It doesnt appear to be on the Contact Model.

I can retrieve this from the XML endpoints, but I understand that those should be sunset soon.

Thanks for your help.

@George_Birnbaum ,

They will not be sunset soon… that’s been said for over eight years now. Since they don’t have a way to keep all the integrations that have been created using the xmlrpc from breaking, they can’t just stop it’s use. Also, since they’ve split products into levels of ‘Keap’ products (rather than just Infusionsoft) they have been much less interested in doing so since it now still has a purpose. You can safely use legacy features.