Hey everyone, I have created two custom fields ("Billing Period (datatype: date)" and "Billing Month (datatype: option)" ) in "Sales Header" table and same fields in "Sales Invoice header" table. Now I want a functionality that whenever I enter value for the two fields in "Sales Header" table using "Sales Invoice" card page and post it, the values should be automatically appended to the two filed in "Sales Invoice header" table and should be displayed on the "Posted Sales Invoice" card page (I have displayed the custom fields also on the card). In the figure below, I have created a logic but it isn't working. The logic is used for the "Posted Sales Invoice" card page that whenever it is opened the functionality should be triggered. Kindly resolve it.
