Hi Ram,
I tried to activate the DS but no use.As a work around i created an ABAP process with code to delete data from PSA. Don't understand why this behaviour.Let me share another scenario if i choose the both(Updated & Not updated further) the check boxes then also nothing happening(neither Req deletion nor the data deletion from PSA).Lets say i had a situation where i need to delete only the updated req not the remaining.Then its not working.This is happening in PRD. But in DEV & QAS.Its perfect.
Regards,
Rambabu