As .loginAdministrative(null) is deprecated in CQ 5.5 and in AEM 6.2 loginService(String,String) method is used.
As in 5.5 there is no need to create service user and .loginAdministrative(null) was used,
And in AEM 6.2 ,
For creating group and users , it is necessary that only service user can do following operation i.e creating group and users in crx repository?
In AEM 6.2, I am able to use loginAdministrative(null) method but not in AEM 6.3.
we can still use this method in 6.2 but not in 6.3? is this correct?