DX OI is showing alarms that were already closed in DX APM
Release : SAAS
In DX Platform ON Premise, you can use the AUTO_ALARM_CLOSURE_DAYS option to automatically close alarms after a certain number of days.
However, setting this environment variable is not possible in DX SaaS.
As an alternative, an Alarm Policy can be created to force the closure of active alarms older than a certain period, let's say 30 days.
However, this condition is applied only to alarms exceeding the 30 days age AFTER the policy is created, so it won't close the old alarms.
As a workaround, an additional condition can be added, "Created < 300 days", so this policy will trigger the closure of all the alarms older than 30 days.
This will be fixed in a future release.
This procedure applies to all alarms, not only those from DX APM. The filters in the condition can be modified to match any need.