I searched but did not find any mention of it on MDL, I am not aware of how SQL server licensing activation works. Was just curious if SQL editions can be "Activated" through KMS or other know methods ?
There is no "activation" for products other than Windows and Office (and other subscriptions such as Visual Studio). Once you put in the appropriate product key, it is done for life.
Thanks for the answer So after the "key activation" these software are not Checked for activation ever again ?