Is the alert listed in the list of the Triggered Alerts? If not, then...
A) The next step in troubleshooting this would be to check if the Trigger Query run by the alerting engine is actually returning your Application.
Open the Database and run the following SQL Query:
SELECT AlertName ,TriggerQuery FROM AlertDefinitions
Copy the TriggerQuery of your Alert and execute it.
1) Is the Application returned in the results?
If yes, 1a) then it either means that the Alerting Engine is encountering an issue or that the Reset or Suppress Alert conditions are blocking it.
If not, 1b) there is something wrong either the Application is UP or the Application name is not matching. Double check the trigger conditions.
B) If the Alert is already triggered, your Actions had some problems to be executed. Use the Test Alert option to confirm actions are working.
Thank you so much! The SQL query will increase my productivity instead of waiting for the Alerts Manager to trigger the actions while I wait. This definitely solved my problem of how I've been setting up my alerts. Thanks again!
thx Yann you just saved a lot of my time