Not able to show other field name in link field

[BhavikDesai17]

I have created a child table called “MRP”.

I am using that doctype’s “mrp” field as link field in Purchase Order Item’s table.

Now i want to have just mrp value as selection rather than “name” field as primary.
Name is autogenerated using expression {item_code} - {mrp}

ERPNext - v15.54.5

Link field screenshot

Customize form screenshots:

[ahsantareen]

Please try customizing search field as following;

This search criteria will fetch all defined fields anywhere you are linking that doctype as Link Record.

[BhavikDesai17]

This is working in search fields for parent form. But in child form search fields function for link field they have changed. It’s not updating in Link Field