Hello VijHyd,
1. Please have a look at following SAP KBAs and check the settings and notes in your system as suggested:
1877764 - Rule evaluation does not work after a kernel upgrade and no alerts are displayed
2067835 - Logging Rule Evaluation for Event Driven Interactions
2. How many app servers are there for you P system? Would you please check if the alert works fine on a single app server (using the T-code CRM_UI from a app server)? Please make a simplest test in your P system to check if the alert doesn't work at all: Create a alert and rule policy, assign it to a business role for 'confirm' event.
3. Please make a httpwatch trace, and check if requests for '.....webcuif/notity/polling/SAM::....' are sent every 1 seconds.
Best Regards, Corrine