I am currently studying and exploring HANA S/4 On premise Edition 1511.
This document focusses on the Logistics-PS related points extracted from simplification list.
In SAP PS , there are many redundant T codes to maintain PS projects. The Target T code is CJ20N -project builder.
The objective and recommendation is to avoid usage of the below T codes and use CJ20N as single project maintenance transaction.
Below T codes will be available with SAP S/4 HANA ,On Premise 1511 but they are not in target architecture.
CJ01 : Create WBS
CJ02 : Change WBS
CJ03 : Display WBS
CJ06 : Create project definition
CJ07 : Change Project definition
CJ08 : Display project definition
CJ11 : Create WBS element
CJ12 : Change WBS element
CJ13 : Display WBS element
CJ14 : Display WBS element (from DMS)
CJ20 : Structure planning
CJ20A : Display Structure Planning
OPUM : Maintain subprojects
Other T codes are CN19 ,CN20 ,CN21 ,CN22 ,CN23 ,CJ27 ,CJ2B ,CJ2C ,CN26 ,CN26N