Fiori HCM Pay Stub app enhancement

Hello Gurus,

I have activated the Pay stub Fiori app and its working fine. Now the client wants to enhance the app so that the users can only see the Payslips when the Salary has been credited to the account.

Is there anyway to do it. I know there is enhancement spot- XSS_REM_INTERFACE. Will that help. ?

Regards,

Vivek