SLA Alerts in DB polling proxy

Hi
I have created a DBAdapter to poll a table in the database for any inserts/updates. Have adopted the Logical Delete processing.
Now I need to configure an SLA alert for the proxy service based on this DBAdapter.
The alert needs to be raised when no records have been updated/inserted for more than say 10 minutes.
The SLA Alert Rule I have defined is as follows:
Rule Name   TriggerAlert
Alert Destination   Poll_SLA/SLAQueue
Start Time (H:MM)   3:00 AM
End time (H:MM)   1:30 PM
Rule Expiration Date (M/D/YYYY)   12/31/2011
Rule Enabled   true
Alert Severity   Critical
Alert Frequency   Every Time
Stop Processing More Rules   true
Conditions
Condition Expression   Aggregation Interval 0 Hour(s) and 5 Minutes
Operation.receive.Message Count = 0
But somehow the SLA Alert is not raised even if there are no inserts or updates for 5 minutes. The proxy service is polling the records correctly as I can see the log actions being executed.
Could someone help me in pointing out the configuration that I have missed or have wrongly done asap.
Thanks & Regards
Kshama
Edited by: Kshama Tamhankar on Dec 20, 2011 9:30 PM

Hi,
I changed the Alert rule to Message Count=0 and the main setting that I had to change to raise the alert was in the Operational Settings tab of the Proxy service.
Monitoring: Enabled Pipeline Monitoring for Service Level and above. By default this is set as Pipeline Level.
Thanks & Regards
Kshama

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