Is Target Data Upgrade script necessary for all user created table & customizations?

Hi all,

I am doing source to target upgrade (AX2009 to AX 2012 R3).

In my scenario i had three tables in source AX 2009. T1(user created table), T2(User created table) & T3(Statndard with customization).

T1 contains Emplid, inventdimID, Address & Dimension fields

T2 does not contains Emplid, inventdimID, Address & Dimension fields

T3 I added Emplid, Dimension, Address & InventDimId fields

I need to write Target Data Upgrade scripts for all the tables.