Login to Solman & R/3

Hi,

When CHARM is implemented developer & Tester can login to R/3 using ugent correction Logon to system.

Means no need to logon seperately for R/3.

But how can I restrict Developer & Tester for direct login to R/3. They are not suppose to login directly & do the work.

When we implement ChaRM does it means that all users have to login to satellite system only through Soluton Manager.

How to control direct login from R/3.

Regards

PK