Hi
To delete PSG, reffer note 1038939 - Archiving profitability segments II.. For system ECC 6.0, there is a remark mentioned at the end
So, I will summarize again for your easier understanding
1. To Delete CE1 - Use KE4S00
2. To Delete CE4 - Avoid if the no of entries are not huge.. If you want to do, refer the above note...
Br, Ajay M