How is contact and address type linking created for doctypes?

[jasonh]

I did find this question, which is specifically how to get addresses to show in a custom DocType, but it is the opposite of what I’m trying to do. I’m trying to get a custom doctype to link to the existing customer doctype.

Dynamic Link in Addresses

Hi all, I have built a custom app with a new doctype named ‘Patient’. I want to be able to create an address directly from that patient and to linke the address automatically at the creation, the same way it is linked to a customer or lead for example: Example: Client address creation [image] At the creation, the reference link is automatically created: [image] When trying to do it in the custom app, the reference links are not populated. It seems the dynamic link doesn’t work. Here i…