A. Employee search (Working fine)
B. custom Leave application (Working fine)
E. Personalinformation (Personal ID only notworking& reaming Srvicesare working example: address, Bank details, personal data….)
It means there is no issue in authorizations. For personal id's check in ECC side is maintained or not. Other wise you can maintain it from portal application itself.
Your using which version of SAP ECC and EHP ?
C. Custom Attendance regularization ( not working)
D. Pay slip (not working )
Only your having issues in custom applications objects as I described in previous post point 2 , you need to take help of your functional and technical resource to look in to this.
First check these services in DEV and QAS portal systems. if it's working fine in both systems then those objects related transport requests you need get it import to PRD system from your SAP basis team.