Upgrade from EBP 3.0 to SRM 4.0

Dear all,

We are planning an upgrade from EBP 3.0 to SRM 4.0. I realize that this is quite a jump so i am wondering if anybody has any similar experiences with such a scenario? Any watchouts or learnings?

Our R/3 version is 4.6C and Support Pack 48 and the ITS version 6.10. sapgui is 6.20

Many thanks

Andreas