After that i tried to create an alert with the condition "sum([TOTAL]<100) ". I am expecting something like if i reload the table and click on the row where total is 50, i should see the alert message. But I am not able to see anything. Please let me know the best use of alerts.
Next question is from my desktop how can i send the alert to my GMAIL ?
The condition will be tested during reload. In your case, you compare the result of all of them ( 2150) with 100... and it doesn't satisfy the condition ( and it should be sum([total) > 100 instead of sum( [TOTAL]<100)
You need use aggr in the expression to test each of the Salesman to identify if any of them had sum( ...) <100