Smartforms in Upgradation

Hi all,

I want to know the impact of Upgradating a server (like 4.6c to Enterprise) on Smartforms. If i upgrade a server from 4.6c to 4.7, do i have to reactivate the smartforms so as to regenerate the function module that would be used in the ABAP program.

Thanks in advance.

Regards

Dhanapal S