Hi Siva,
Please try with the below mentioned parameters in field "Target App. Parameters" in LPD_CUST->MSS (Role).
And I see that you are using the correct parameters in other fields like 'Application Alias', Configuration etc...
I have used 'Countrygrouping' as 08. Please use yours accordingly.
PROCESS=ZHREUS_PA_XX_SPECIAL_PAYMENT1_WD&COUNTRYGROUPING=08&INITIATOR_ROLE=HRASRB&WDCONFIGURATIONID=ASR_PROCESS_EXECUTE_OVP_CFG&SUBST_CLASSIFICATION=NO_CLASS
Regards,
Dinakaran