We use HP Insight Remote Support (IRSA in the past) together with SIM. In this configuration you can forward the service events to the service/help desk which reduces the number of events to the ones which need to be handled because a hardware service provider will call them to arrange the appointment for the repair or component shipment.
If your organization needs to handle all the events you need to check with the service/help desk software vendor for duplication detection or if the amount of events per day is not to high you can write an event automation task which checks first in if the trap did recently open an incident in your service desk tool. (Perl VBA or powershell can be used if the number of events are not to high)