Alert Configuration and Alert Inbox Does Not Show Up

Hello All,

We are having a strange problem regarding alerts in XI. We are on NW2004s XI 7.0 SP 9. The TCode 'ALRTCATDEF' works fine. But when we go for configuring alerts in RWB, it says '404 Not Found: The requested resource does not exist'. Can anybody suggest what is the error behind this?

Thanking in anticipation,

Amitabha