Direct popup feedback when executing processes


we have some “Administration” processes which are only executed by IT operations by using the Camunda cockpit (tasklist -> start process). These processes only have 1 service task (implemented in Java).
The processes work fine, but IT operations want to have a direct feedback when the process was executed successfully (and showing some result values).
The feedback should be a browser popup or a website which shows up.
Which is the easiest way to implement this requirement?
We tried to make a javascript script task which shows a popup (like window.alert (“process was executed with result = …”):wink: but this dows not work.
Any ideas?

Showing a popup as a feedback when executing a process