Simple Event-Trigger on a dynamic field

[Rasputin80]

Hiho,

Just created a new dynamic field, which is emtpy when i create a new incidient.
By an Update of the incident, the Dynamic Field gets a Value.

With the Generic Agent in the Admin i created an Event Trigger on: TicketDynamicFieldUpdate_MYFIELD
with that trigger i want to change the state of my incident as soon my dynamic field is filled.

Nothing happens, maybe thats not possible in that easy way. how should it just fireup? It works if a manualy start the Job.

Cheers
Raspu