Add Description-like field in Sales Order Item table

I am trying to add a field called Production remarks which is almost the exact same thing as description, the field is showing in item and in sales order item, but its not fetching the data.

this is my setup:

In Item:

In sales order item:

Showing In table:

what am I doing wrong here?

fetch from should be
item_code is the item link fieldname

Thank you @szufisher
I just understood that we should use the field name that we actually link and can access all info from there, not the doctype name. :stuck_out_tongue: