Add SLA Breach for Incidents activity table

Hi all,

I'm trying to add a activity on incidents that described that the SLA of it has Breach.

I set a alertdef for probsummary that calculate an SLA Breach and update status field for "Breach" and this is working.

I tried to set it up through activity actions table but it only works if I save the record , it's not assuming this change of the status field automatically and write the activity on the record.

I also tried to set an format control for it and setting up it on the alertdef but doesn't work neither if I set up a trigger for it.

 

Does anyone have the solution for this?

Thanks in advance