Fetch From - What am I doing wrong?

When I create a custom field I sometimes use the “fetch from” field in that custom field to populate it with data. I have done this many times even on V12, and it works.

I just created a custom field in Lead doctype called “Lead Owners Name”. The objective is that once a lead owner is chosen from “lead owner” field (this shows email address of the lead owner) the full name of the lead owner should be displayed in the custom field “Lead Owners Name” below

This is what I keyed into the “fetch from” field of the custom field

User.full_name

It does not do as expected.

Can someone tell me what am doing wrong? Will appreciate any response

It should be: lead_owner.full_name

You have to pass the field name holding the link and not the doctype itself.

Thank You…It worked