Hi Pradyp,
CATS to HR -- > create a attendance / absence type in sap backend and call into cat2, check the table CATSDB table or CATSD sturcture.
CATS to PS ---> create a wbs element in CJ20n transaction code , and should be release than only it will work. call this wbs element into cat2.
that means , if the resource is booking the billable hours and should be select the wbse and A/A.
check the table CATSPS.
CATS to CO -- > create activity type KL01 is the transaction and provided by CO guys, actual cost will be transferred to controlling.
check the table CATSCO for further information.
CATS to SD , MM : - create a sender cost center, orders all the stuff comes under this two modules and provided by sales team and procurement team.
check the tables : CATSMM and CATSSD tables. Check the tables CATSPP for prd planning,
check the some transaction codes.
CAT2 is the employee time sheet.
CATS_APPR -- approval TS
CAT5
CAT6
CAT7 -- controlling
CAT9.
Thanks
Siva